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Diaporama | |  Watch Piton de la Fournaise live
Piton de la Fournaise, un volcan bouclier basaltiques typiques, situé sur l'île française La Réunion, est un des volcans les plus actifs et les plus productifs du monde. C'est dans une phase d'éruptions fréquentes mais de courte durées qui commencent avec les fontaines de lave et de produire des coulées de lave grand. Puisque les zones actives du volcan ne sont pas habitées, ses éruptions posent peu de danger et causent peu de dommages. Shield volcano 2631 m (8,632 ft) La Réunion, -21.24°S / 55.71°E Condition actuelle: en éruption (4 sur 5) Piton de la Fournaise webcams / données en temps réel | ReportsPiton de la Fournaise livres | Tours
Eruptions du volcan Piton de la Fournaise:1900, 1901, 1901, 1902, 1903(?), 1904, 1905, 1907, 1908(?), 1909, 1910, 1913, 1915, 1917, 1920, 1921, 1924, 1924, 1925-26, 1926-27, 1929, 1930, 1931, 1932, 1933-34, 1935(?), 1936, 1937, 1938, 1938-39, 1941, 1942, 1943, 1944, 1945, 1946, 1947(?), 1948, 1948(?), 1950, 1951(?), 1951, 1952, 1953, 1954, 1955-57, 1958, 1959, 1960, 1961, 1963, 1964, 1964-65, 1966, 1972, 1973, 1973, 1975-76, 1976, 1977, 1977, 1979, 1981, 1983-84, 1985-88, 1990, 1991, 1992, 1998, 1999, 2000 (Feb-March), 2001 (March-April), 2001 (June-July), 2002 (Jan.), 2002 (Nov-Dec), 2003 (May) - 2004 (Jan), 2004 (May), 2004 (Aug-Oct), 2005 (Feb-March), 2005 (Oct), 2005 (Nov), 2005 (Dec)-2006 (Jan) Style éruptif tipique:Effusive Derniers séismes prochesDerniers images satellite 
Piton de la Fournaise, un volcan bouclier basaltiques typiques, situé sur l'île française La Réunion, est un des volcans les plus actifs et les plus productifs du monde. C'est dans une phase d'éruptions fréquentes mais de courte durées qui commencent avec les fontaines de lave et de produire des coulées de lave grand. Puisque les zones actives du volcan ne sont pas habitées, ses éruptions posent peu de danger et causent peu de dommages. Shield volcano 2631 m (8,632 ft) La Réunion, -21.24°S / 55.71°E Condition actuelle: en éruption (4 sur 5) Piton de la Fournaise webcams / données en temps réel | ReportsPiton de la Fournaise livres | ToursEruptions du volcan Piton de la Fournaise:
1900, 1901, 1901, 1902, 1903(?), 1904, 1905, 1907, 1908(?), 1909, 1910, 1913, 1915, 1917, 1920, 1921, 1924, 1924, 1925-26, 1926-27, 1929, 1930, 1931, 1932, 1933-34, 1935(?), 1936, 1937, 1938, 1938-39, 1941, 1942, 1943, 1944, 1945, 1946, 1947(?), 1948, 1948(?), 1950, 1951(?), 1951, 1952, 1953, 1954, 1955-57, 1958, 1959, 1960, 1961, 1963, 1964, 1964-65, 1966, 1972, 1973, 1973, 1975-76, 1976, 1977, 1977, 1979, 1981, 1983-84, 1985-88, 1990, 1991, 1992, 1998, 1999, 2000 (Feb-March), 2001 (March-April), 2001 (June-July), 2002 (Jan.), 2002 (Nov-Dec), 2003 (May) - 2004 (Jan), 2004 (May), 2004 (Aug-Oct), 2005 (Feb-March), 2005 (Oct), 2005 (Nov), 2005 (Dec)-2006 (Jan) Style éruptif tipique:Effusive Derniers séismes prochesDerniers images satellite Actualités & mise à jour du volcan Piton de la Fournaise:
mar., 17 nov. 2015, 16:05  Map of the Enclos of Piton de la Fournaise and the exclusion zone (image: Prefecture of La Réunion) The alert level of the volcano was lowered today as no more eruptive activity occurred since the last phase of the latest eruption ended more than two weeks ago. ...plusMost trails inside the Enclos are now again open for public, with the exception of the wide area of and around the still hot pahoehoe lava flow field emplaced at the western foot of Dolomieu crater during the recent eruption. (A significant, potential lethal hazard is breaking through the fragile crust of the shelly pahoehoe lava, potentially falling into still very hot hollow spaces underneath). [ moins] [ lire toutes] dim., 1 nov. 2015, 12:05 The third eruptive phase ended in the afternoon of 31 Oct, a day after it had begun. However, deep seismic activity suggests that the eruption might still not be completely over and alert level 2 is being maintained. ven., 30 oct. 2015, 07:23 Another (the third) eruptive phase began at the volcano yesterday evening. From 16:00 local time, the volcano observatory recorded an increase in tremor and new lava was seen in the vent after 20:00. ...plusShortly after 04:00 this morning, activity intensified further and formed a new active lava pond inside the large new crater that had formed early in the eruption near Piton Rivals. The activity is currently observable from the path leading to Piton Bert. [ moins] dim., 25 oct. 2015, 09:42  The lava flows from Piton de la Fournaise still active yesterday morning The latest (second) effusive phase of the eruption ended yesterday afternoon. After 15:00 local time, tremor became discontinuous and lava effusion ceased. ...plusThe short-lived, but quite intense re-activation of the eruption began last Thursday evening, after a break of 4 days in activity. During the evening, lava quickly filled the main cone again and produced a new lava flow that traveled more than 1 km to the SSE. By next morning, it had reached the western foot of Piton de Bert where it caused a bush fire that was still out of control yesterday afternoon and prevented ground access to the eruption site from Pas de Bellecombe. Whether the eruption will enter another (third) phase of lava effusion in the near future, or now can be considered to have ended for good, is impossible to say. [ moins] [ lire toutes] jeu., 22 oct. 2015, 14:13 According to local news, the eruption restarted today after 4 days of quiet. Observers detected minor strombolian activity from a small, 1 m diameter vent at the bottom of the large new cone. ...plusSmall explosions every few seconds were seen sending lava bombs to a few tens of meters height, not surpassing the outer crater rim. According to volcano observatory, sporadic pulses of tremor have reappeared this morning since 7am local time. Whether this is just a weak after-play or the onset of a more significant eruptive phase of the latest eruption remains to be seen. [ moins] [ lire toutes] mar., 20 oct. 2015, 05:40
 View of Piton del la Fournaise's eruption site from Piton Bert webcam before and after the eruption (note some cones have almost disappeared under the new lava) According to the volcano observatory, the effusive phase of the eruption is over (no more activity since the sudden stop of lava effusion on Saturday). A weak tremor signal continued to be recorded this morning, probably related to degassing. ...plusThe eruption has emplaced an impressive pahoehoe (ropy) lava flow field south and southeast of Dolomieu crater (compare images from before and after the eruption). [ moins] dim., 18 oct. 2015, 08:36  Images of lava bubbles from the main vent on 12 Oct (OVPF) After a the eruption had intensified considerably during the past week, tremor suddenly dropped this morning at 08:02 local time and only showed sporadic pulses. The lava effusion seemed to have stopped as well. Aerial surveys this morning showed no more lava inside the vent. ...plusWhether this is a temporary pause or a rather sudden (but not uncommon) end of the eruption will be clearer in the near future. Up until yesterday (17 Oct), the eruption had been increasing, and generated again lava fountains from the main vent up to 40 m tall. The main vent itself had increased to reach approx. 100 m diameter, containing a lava lake which released large bubbles of gas (SO2), generating spectacular lava bubble ejections (images). 
Tremor evolution up until yesterday (OVPF) [ moins] [ lire toutes] ven., 16 oct. 2015, 05:54  Piton de la Fournaise volcano on 13 Oct 2015 The current, remarkably long-lived eruption continues with no signs of weakening. On the contrary, a significant increase in tremor and lava effusion was noted starting 12 Oct, reaching high values comparable to the start of the eruption. The observatory estimated the effusion rate to have risen from 9 to 13.5 cubic meters per second. ...plusThe part of the Enclos southeast of Dolomieu crater has been profoundly changed by the eruption: A large pahoehoe lava field with 10-20 m thickness is growing, fed by a network of lava tubes originating from the vents near the base of Piton Bert. Around the principal vent, a cone has been built that contains a violently boiling and spectacular lava lake. Several older cones are in the stage of disappearing beneath the lava field. [ moins] sam., 3 oct. 2015, 07:35  Lava flow field of Piton de la Fournaise's eruption as on 28 Sep 2015(OVPF) The eruption continues with little changes overall. The lava flow field gradually expands (and thickens) towards the southeast from the vents, with the most distant flow fronts now being around 2600-2700 m away. ...plusA slight increase in tremor has been noted over the past week, but volcanologists believe that it is probably due to rainwater infiltration. An inversion of the deformation trend has been detected as well: now, the upper part of the central Dolomieu cone seems to have started to deflate, which could indicate a beginning exhaustion of magma supply.  Tremor at Piton de la Fournaise (OVPF) [ moins] mer., 23 sept. 2015, 08:43  New surface lava flow from Piton de la Fournaise last night The eruption continues into its second month,- for Piton de La Fournaise's standards this is an unusually long-lived one. Accompanied by stable tremor, effusive activity remains strong and feeds a growing lava flow field that slowly expands towards the east in direction of the Grandes Pentes. ...plusAt the site of the main vent near Piton Rivals, a cone with a small lava lake has formed. From there, the lava flows for a large part of its path through lava tubes that then feed several flow branches further downslope. Occasionally, when parts of the tube system becomes blocked or unstable, new surface flows develop near the vent, such as last night when a new surface flow appeared that began flowing to the southeast. [ moins] Show more news
jeu., 3 sept. 2015, 06:57 The eruption continues at weak intensity. As of yesterday, only one vent, a cone about 20 m high, remained active producing pulsating fountain-like strombolian explosions of bursting lava bubbles that reach 15-20 m height. ...plusThe lava flows approx. 50 m through a tube and then forms a flow extending about 1 km to the south, with an average thickness of 2-3 meters. The front of the flow was not moving yesterday. [ moins] jeu., 27 août 2015, 07:08 The eruption that began last Monday continues. Lava output is much lower now (approx 10 cubic meters / second) than in the beginning (30 cu m/s), but more or less stable. ...plusBad weather during the past two days prevented more detailed observations. A heavy cloud of volcanic vog (SO2 droplets) encompasses most of the Enclos and parts of the southern La Réunion island. [ moins] mar., 25 août 2015, 15:27  Tremor amplitude of Piton de la Fournaise during the first 12 hours of the eruption (OVPF) The eruption that started yesterday continues, but only one of several fissures (east of the Rivals crater), that opened last night remains active over a length of 100 m. A small cone has been built at its upper end, approx. 140 m east of Rivals crater. Strombolian activity occurs from this vent, while 3 other vents lower on the fissure continue to produce lava fountains and feed a lava flow that slowly advances towards the Grandes Pentes. ...plusThe volcano observatory reports that both tremor and lava effusion rates have been dropping, first rapidly after the first, most intense two hours last night and more slowly since. [ moins] [ lire toutes] lun., 24 août 2015, 15:48  Lava fountain and lava flow from the new eruption of Piton de la Fournaise today A new eruption started at the volcano this evening. Following a brief seismic crisis that triggered an eruption alarm, an eruptive fissure opened south of Dolomieu crater at 18:50 local time. ...plusIt is producing impressive lava fountains and a branching lava flow, which can be seen on the webcam of OVPF. The prefecture of Reunion triggered the highest volcanic alert and closed public access to the Enclos,- only shortly after the limitations in place since the last eruption had partially been lifted... [ moins] [ lire toutes] lun., 3 août 2015, 09:34
 Eruptive fissure of Piton de la Fournaise on 31 July (image: Paul Dérand) After less than 3 days, the eruption already ended Sunday morning. The volcano observatory reported that tremor and lava effusion ceased abruptly at 11:15. However, a new eruptive phase in the near future cannot be ruled out. ...plusThe access to the Enclos remains closed. Attached is a series of photos, taken on the first evening of the eruption by local resident Paul Dérand (thank you!).  Lava flows of Piton de la Fournaise on 31 July (image: Paul Dérand)  Lava fountain from main vent (image: Paul Dérand) [ moins] [ lire toutes] ven., 31 juil. 2015, 10:52
 The new eruptive fissure at Piton de la Fournaise (image: Guillaume Cazarré / clicanoo) The expected new eruption, the third in 2015, started this morning at 09.20 local time. ...plusThe eruptive fissure vent is located NE from Piton Kapor and extending towards Nez Coupé de Ste Rose. It feeds a curtain of lava fountains with associated lava flows. Access to the Enclos has been closed. [ moins] jeu., 30 juil. 2015, 10:11
A new eruption might be under way at the volcano. Since last weekend, seismic activity from a source at 1-2 km depth beneath Dolomieu crater has been increasing. In addition, increased degassing and inflation of the Dolomieu crater have been detected, both likely signs of a new magma intrusion at shallow depth. ...plusThe prefecture has closed access to the Enclos. Whether an eruption will occur or not remains to be seen in the coming hours or days. If it does, it would be the third eruption of Piton de la Fournaise in 2015 after the ones in February and May. Already on 6 July, a similar seismic swarm occurred, but was not followed by an eruption. More than 90 quakes within one hour triggered an eruption alert and the Enclos was closed to the public. The caldera was reopened (with some limitations) on 9 July. [ moins] [ lire toutes] lun., 6 juil. 2015, 15:59 A new eruption could be underway at the volcano, the Volcano Observatory reported. Today, it recorded a seismic swarm of shallow earthquakes located under the summit of Dolomieu crater that started at noon. ...plusThe prefecture declared alert phase 1 "probable eruption" and closed public access to the Enclos. [ moins] lun., 1 juin 2015, 11:05  Tremor during the eruption of Piton de la Fournaise volcano (OVPF) The most recent eruption (the second in 2015) ended during the evening of 30 May. ...plusTremor disappeared around 20:50, following a decreasing trend since 27 May. According to estimates of the volcano observatory, the eruption produced approx. 8 million cubic meters of lava during its 13 days of activity, a typical value for an eruption of Piton de la Fournaise in recent decades. Interestingly, no significant deflation has been detected accompanying the eruption,- this means that it has not drained much of the magma chamber and that a new eruption, even in a short time from now, could be a realistic scenario. [ moins] [ lire toutes] ven., 22 mai 2015, 06:44
 Piton de la Fournaise's lava flow on 21 May (photo: Fabrice Juigner / facebook) The eruption continues with stable lava effusion accompanied by stable tremor levels since Monday. Lava fountaining at the vent reaches up to 40 m height and the lava flow continues to move slowly towards the coast, from where it was still 3 km distant yesterday evening. Show more newsmer., 20 mai 2015, 01:06
 Approximate location of the lava flow yesterday evening (fournaise.info) The eruption continues with strong lava effusion. As of 19 May evening, the lava flow had been at 3 km from the coastal road, having advanced 750 m during the past 24 hours. ...plusIts advance is likely to be slower from now on, as the front is now in the flatter area of the "Grandes Brulés". Nevertheless, hopes are rising that the flow might reach the sea. [ moins] [ lire toutes] lun., 18 mai 2015, 12:51  The two active vents with lava flows yesterday (photo: Planétaire974) The new eruption continues, although only the lowest vent seems to be still active by now. It continues to feed a large lava flow now headed towards the vast coastal flat to the east. In the course of today, it reached the steeper section of the Enclos, the "Grandes Pentes" and started to descend there. ...plusAt this point, the lava flow, approx. 4-5 km long could be seen from the popular "lava road" (which might be closed off soon). The lower fissure vent opened shortly after the first eruptive fissure had opened higher up on the flanks of Dolomieu crater, near the 1948 cinder cone "Chateau Fort". As is typical, the lower vent produced the more significant lava fountaining and lava flow effusion. 
The lava flow descending on the Grandes Pentes (photo: JPL / Fournaise Info) [ moins] [ lire toutes] dim., 17 mai 2015, 14:03  Fissure eruption at Piton de la Fournaise today A new eruption, so far small, began this Sunday at 13:45 from a fissure vent at the the southeast slopes of the Dolomieux crater inside the Enclos next to the Château Fort cone. ...plusAn intense seismic crisis with 5-7 earthquakes per minutes started 55 minutes before the onset of the eruption, as magma pushed its way to the surface. A few minutes after the beginning of the quakes, significant deformation of the Dolomieu crater rim could be measured as well. The prefecture of La Réunion triggered alert phase 2 and closed access to the Enclos. [ moins] [ lire toutes] mer., 29 avril 2015, 21:10 A new eruption could be on its way at the volcano. ...plusA sharp increase in volcanic CO2 emissions, significant deformation of the Dolomieu crater, and a migration of earthquakes from deep to shallow (7 km) levels, as well as earthquakes near the surface itself that have appeared over the past weekend suggest new magma is on its rise to a possible new eruption, which would be the second in 2015. The prefecture raised the alert to level 1 ("eruption likely") and closed access to the Enclos Fouqué this morning. [ moins] [ lire toutes] lun., 16 févr. 2015, 10:45
 Map of the erupted lava flows as of 8 Feb (little changes since) (OVPF) After 10 days of relatively stable, mild effusive lava flow activity, the eruption seems to have ended last night. ...plusOVPF reported that tremor disappeared Sunday evening 22:30 local time. No visible activity could be seen any more afterwards. Alert level was lowered to vigilance, but access to the Enclos remains still limited for now, in case of a sudden re-activation, which is always a possibility. [ moins] [ lire toutes] mar., 10 févr. 2015, 12:25 
Piton de la Fournaise eruption 4 Feb 2015 (photo: Piere Choukroun) La Réunion-based photographer Pierre Choukroun ...plussent us this great photo from the first evening of the eruption, showing the typical alignment of active vents along the eruptive fissure. View the whole gallery. [ moins] [ lire toutes] mar., 10 févr. 2015, 10:13  View of the active lava flow at Piton de la Fournaise volcano last night The eruption continues without major changes. The volcano observatory OVPF reports low, but stable tremor levels. Webcam imagery from last night (before clouds obscure views) show that the eruption is mainly effusive with only weak explosive activity (weak spattering) at the vents. ...plusCurrently, a small lava flow is active that extends approx 500 m from the base of the Dolomieu cone, enlarging the new lava field of partially overlapping flows at its base. The middle section of the lava flow is through a lava tube, making it invisible in this part on the webcam images. [ moins] jeu., 5 févr. 2015, 20:38  Lava flow from Piton de la Fournaise this evening The eruption continues with active lava flow effusion from a row of 7 vents on the upper flank of the Dolomieu crater. ...plusThe latest bulletin of OVPF reports currently low tremor and confirms that the eruptive fissure originally was 500 m long. Effusive activity quickly focussed to the lower end of it at approx. 2500 m altitude. [ moins] [ lire toutes] mer., 4 févr. 2015, 12:44  View of the eruption (OVPF webcam) A new eruption has started at the volcano, following a brief seismic crisis that started early this morning. ...plusAccording to OVPF, the new (fissure) vent should be located between Bory, Dolomieu and Rivals craters on the upper flank of the Dolomieu main cone. A lava flow is descending SSW and has already reached the base of the Dolomieu crater, i.e. the floor of the enclos. Its length is more than 1 km. [ moins]
 Actualités & mise à jour du volcan Piton de la Fournaise:mar., 17 nov. 2015, 16:05 Map of the Enclos of Piton de la Fournaise and the exclusion zone (image: Prefecture of La Réunion) The alert level of the volcano was lowered today as no more eruptive activity occurred since the last phase of the latest eruption ended more than two weeks ago. ...plusMost trails inside the Enclos are now again open for public, with the exception of the wide area of and around the still hot pahoehoe lava flow field emplaced at the western foot of Dolomieu crater during the recent eruption. (A significant, potential lethal hazard is breaking through the fragile crust of the shelly pahoehoe lava, potentially falling into still very hot hollow spaces underneath). [ moins] [ lire toutes]
dim., 1 nov. 2015, 12:05 The third eruptive phase ended in the afternoon of 31 Oct, a day after it had begun. However, deep seismic activity suggests that the eruption might still not be completely over and alert level 2 is being maintained. ven., 30 oct. 2015, 07:23
Another (the third) eruptive phase began at the volcano yesterday evening. From 16:00 local time, the volcano observatory recorded an increase in tremor and new lava was seen in the vent after 20:00. ...plusShortly after 04:00 this morning, activity intensified further and formed a new active lava pond inside the large new crater that had formed early in the eruption near Piton Rivals. The activity is currently observable from the path leading to Piton Bert. [ moins] dim., 25 oct. 2015, 09:42 The lava flows from Piton de la Fournaise still active yesterday morning The latest (second) effusive phase of the eruption ended yesterday afternoon. After 15:00 local time, tremor became discontinuous and lava effusion ceased. ...plusThe short-lived, but quite intense re-activation of the eruption began last Thursday evening, after a break of 4 days in activity. During the evening, lava quickly filled the main cone again and produced a new lava flow that traveled more than 1 km to the SSE. By next morning, it had reached the western foot of Piton de Bert where it caused a bush fire that was still out of control yesterday afternoon and prevented ground access to the eruption site from Pas de Bellecombe. Whether the eruption will enter another (third) phase of lava effusion in the near future, or now can be considered to have ended for good, is impossible to say. [ moins] [ lire toutes]
jeu., 22 oct. 2015, 14:13 According to local news, the eruption restarted today after 4 days of quiet. Observers detected minor strombolian activity from a small, 1 m diameter vent at the bottom of the large new cone. ...plusSmall explosions every few seconds were seen sending lava bombs to a few tens of meters height, not surpassing the outer crater rim. According to volcano observatory, sporadic pulses of tremor have reappeared this morning since 7am local time. Whether this is just a weak after-play or the onset of a more significant eruptive phase of the latest eruption remains to be seen. [ moins] [ lire toutes] mar., 20 oct. 2015, 05:40 View of Piton del la Fournaise's eruption site from Piton Bert webcam before and after the eruption (note some cones have almost disappeared under the new lava) According to the volcano observatory, the effusive phase of the eruption is over (no more activity since the sudden stop of lava effusion on Saturday). A weak tremor signal continued to be recorded this morning, probably related to degassing. ...plusThe eruption has emplaced an impressive pahoehoe (ropy) lava flow field south and southeast of Dolomieu crater (compare images from before and after the eruption). [ moins] dim., 18 oct. 2015, 08:36
Images of lava bubbles from the main vent on 12 Oct (OVPF) After a the eruption had intensified considerably during the past week, tremor suddenly dropped this morning at 08:02 local time and only showed sporadic pulses. The lava effusion seemed to have stopped as well. Aerial surveys this morning showed no more lava inside the vent. ...plusWhether this is a temporary pause or a rather sudden (but not uncommon) end of the eruption will be clearer in the near future. Up until yesterday (17 Oct), the eruption had been increasing, and generated again lava fountains from the main vent up to 40 m tall. The main vent itself had increased to reach approx. 100 m diameter, containing a lava lake which released large bubbles of gas (SO2), generating spectacular lava bubble ejections (images). Tremor evolution up until yesterday (OVPF) [ moins] [ lire toutes] ven., 16 oct. 2015, 05:54
Piton de la Fournaise volcano on 13 Oct 2015 The current, remarkably long-lived eruption continues with no signs of weakening. On the contrary, a significant increase in tremor and lava effusion was noted starting 12 Oct, reaching high values comparable to the start of the eruption. The observatory estimated the effusion rate to have risen from 9 to 13.5 cubic meters per second. ...plusThe part of the Enclos southeast of Dolomieu crater has been profoundly changed by the eruption: A large pahoehoe lava field with 10-20 m thickness is growing, fed by a network of lava tubes originating from the vents near the base of Piton Bert. Around the principal vent, a cone has been built that contains a violently boiling and spectacular lava lake. Several older cones are in the stage of disappearing beneath the lava field. [ moins] sam., 3 oct. 2015, 07:35 Lava flow field of Piton de la Fournaise's eruption as on 28 Sep 2015(OVPF) The eruption continues with little changes overall. The lava flow field gradually expands (and thickens) towards the southeast from the vents, with the most distant flow fronts now being around 2600-2700 m away. ...plusA slight increase in tremor has been noted over the past week, but volcanologists believe that it is probably due to rainwater infiltration. An inversion of the deformation trend has been detected as well: now, the upper part of the central Dolomieu cone seems to have started to deflate, which could indicate a beginning exhaustion of magma supply.
Tremor at Piton de la Fournaise (OVPF) [ moins] mer., 23 sept. 2015, 08:43 New surface lava flow from Piton de la Fournaise last night The eruption continues into its second month,- for Piton de La Fournaise's standards this is an unusually long-lived one. Accompanied by stable tremor, effusive activity remains strong and feeds a growing lava flow field that slowly expands towards the east in direction of the Grandes Pentes. ...plusAt the site of the main vent near Piton Rivals, a cone with a small lava lake has formed. From there, the lava flows for a large part of its path through lava tubes that then feed several flow branches further downslope. Occasionally, when parts of the tube system becomes blocked or unstable, new surface flows develop near the vent, such as last night when a new surface flow appeared that began flowing to the southeast. [ moins] Show more newsjeu., 3 sept. 2015, 06:57 The eruption continues at weak intensity. As of yesterday, only one vent, a cone about 20 m high, remained active producing pulsating fountain-like strombolian explosions of bursting lava bubbles that reach 15-20 m height. ...plusThe lava flows approx. 50 m through a tube and then forms a flow extending about 1 km to the south, with an average thickness of 2-3 meters. The front of the flow was not moving yesterday. [ moins] jeu., 27 août 2015, 07:08
The eruption that began last Monday continues. Lava output is much lower now (approx 10 cubic meters / second) than in the beginning (30 cu m/s), but more or less stable. ...plusBad weather during the past two days prevented more detailed observations. A heavy cloud of volcanic vog (SO2 droplets) encompasses most of the Enclos and parts of the southern La Réunion island. [ moins] mar., 25 août 2015, 15:27
Tremor amplitude of Piton de la Fournaise during the first 12 hours of the eruption (OVPF) The eruption that started yesterday continues, but only one of several fissures (east of the Rivals crater), that opened last night remains active over a length of 100 m. A small cone has been built at its upper end, approx. 140 m east of Rivals crater. Strombolian activity occurs from this vent, while 3 other vents lower on the fissure continue to produce lava fountains and feed a lava flow that slowly advances towards the Grandes Pentes. ...plusThe volcano observatory reports that both tremor and lava effusion rates have been dropping, first rapidly after the first, most intense two hours last night and more slowly since. [ moins] [ lire toutes] lun., 24 août 2015, 15:48 Lava fountain and lava flow from the new eruption of Piton de la Fournaise today A new eruption started at the volcano this evening. Following a brief seismic crisis that triggered an eruption alarm, an eruptive fissure opened south of Dolomieu crater at 18:50 local time. ...plusIt is producing impressive lava fountains and a branching lava flow, which can be seen on the webcam of OVPF. The prefecture of Reunion triggered the highest volcanic alert and closed public access to the Enclos,- only shortly after the limitations in place since the last eruption had partially been lifted... [ moins] [ lire toutes] lun., 3 août 2015, 09:34 Eruptive fissure of Piton de la Fournaise on 31 July (image: Paul Dérand) After less than 3 days, the eruption already ended Sunday morning. The volcano observatory reported that tremor and lava effusion ceased abruptly at 11:15. However, a new eruptive phase in the near future cannot be ruled out. ...plusThe access to the Enclos remains closed. Attached is a series of photos, taken on the first evening of the eruption by local resident Paul Dérand (thank you!). Lava flows of Piton de la Fournaise on 31 July (image: Paul Dérand) Lava fountain from main vent (image: Paul Dérand) [ moins] [ lire toutes] ven., 31 juil. 2015, 10:52 The new eruptive fissure at Piton de la Fournaise (image: Guillaume Cazarré / clicanoo) The expected new eruption, the third in 2015, started this morning at 09.20 local time. ...plusThe eruptive fissure vent is located NE from Piton Kapor and extending towards Nez Coupé de Ste Rose. It feeds a curtain of lava fountains with associated lava flows. Access to the Enclos has been closed. [ moins] jeu., 30 juil. 2015, 10:11 A new eruption might be under way at the volcano. Since last weekend, seismic activity from a source at 1-2 km depth beneath Dolomieu crater has been increasing. In addition, increased degassing and inflation of the Dolomieu crater have been detected, both likely signs of a new magma intrusion at shallow depth. ...plusThe prefecture has closed access to the Enclos. Whether an eruption will occur or not remains to be seen in the coming hours or days. If it does, it would be the third eruption of Piton de la Fournaise in 2015 after the ones in February and May. Already on 6 July, a similar seismic swarm occurred, but was not followed by an eruption. More than 90 quakes within one hour triggered an eruption alert and the Enclos was closed to the public. The caldera was reopened (with some limitations) on 9 July. [ moins] [ lire toutes] lun., 6 juil. 2015, 15:59 A new eruption could be underway at the volcano, the Volcano Observatory reported. Today, it recorded a seismic swarm of shallow earthquakes located under the summit of Dolomieu crater that started at noon. ...plusThe prefecture declared alert phase 1 "probable eruption" and closed public access to the Enclos. [ moins] lun., 1 juin 2015, 11:05 Tremor during the eruption of Piton de la Fournaise volcano (OVPF) The most recent eruption (the second in 2015) ended during the evening of 30 May. ...plusTremor disappeared around 20:50, following a decreasing trend since 27 May. According to estimates of the volcano observatory, the eruption produced approx. 8 million cubic meters of lava during its 13 days of activity, a typical value for an eruption of Piton de la Fournaise in recent decades. Interestingly, no significant deflation has been detected accompanying the eruption,- this means that it has not drained much of the magma chamber and that a new eruption, even in a short time from now, could be a realistic scenario. [ moins] [ lire toutes] ven., 22 mai 2015, 06:44 Piton de la Fournaise's lava flow on 21 May (photo: Fabrice Juigner / facebook) The eruption continues with stable lava effusion accompanied by stable tremor levels since Monday. Lava fountaining at the vent reaches up to 40 m height and the lava flow continues to move slowly towards the coast, from where it was still 3 km distant yesterday evening. Show more news
mer., 20 mai 2015, 01:06 Approximate location of the lava flow yesterday evening (fournaise.info) The eruption continues with strong lava effusion. As of 19 May evening, the lava flow had been at 3 km from the coastal road, having advanced 750 m during the past 24 hours. ...plusIts advance is likely to be slower from now on, as the front is now in the flatter area of the "Grandes Brulés". Nevertheless, hopes are rising that the flow might reach the sea. [ moins] [ lire toutes] lun., 18 mai 2015, 12:51
The two active vents with lava flows yesterday (photo: Planétaire974) The new eruption continues, although only the lowest vent seems to be still active by now. It continues to feed a large lava flow now headed towards the vast coastal flat to the east. In the course of today, it reached the steeper section of the Enclos, the "Grandes Pentes" and started to descend there. ...plusAt this point, the lava flow, approx. 4-5 km long could be seen from the popular "lava road" (which might be closed off soon). The lower fissure vent opened shortly after the first eruptive fissure had opened higher up on the flanks of Dolomieu crater, near the 1948 cinder cone "Chateau Fort". As is typical, the lower vent produced the more significant lava fountaining and lava flow effusion. The lava flow descending on the Grandes Pentes (photo: JPL / Fournaise Info) [ moins] [ lire toutes] dim., 17 mai 2015, 14:03
Fissure eruption at Piton de la Fournaise today A new eruption, so far small, began this Sunday at 13:45 from a fissure vent at the the southeast slopes of the Dolomieux crater inside the Enclos next to the Château Fort cone. ...plusAn intense seismic crisis with 5-7 earthquakes per minutes started 55 minutes before the onset of the eruption, as magma pushed its way to the surface. A few minutes after the beginning of the quakes, significant deformation of the Dolomieu crater rim could be measured as well. The prefecture of La Réunion triggered alert phase 2 and closed access to the Enclos. [ moins] [ lire toutes] mer., 29 avril 2015, 21:10 A new eruption could be on its way at the volcano. ...plusA sharp increase in volcanic CO2 emissions, significant deformation of the Dolomieu crater, and a migration of earthquakes from deep to shallow (7 km) levels, as well as earthquakes near the surface itself that have appeared over the past weekend suggest new magma is on its rise to a possible new eruption, which would be the second in 2015. The prefecture raised the alert to level 1 ("eruption likely") and closed access to the Enclos Fouqué this morning. [ moins] [ lire toutes] lun., 16 févr. 2015, 10:45 Map of the erupted lava flows as of 8 Feb (little changes since) (OVPF) After 10 days of relatively stable, mild effusive lava flow activity, the eruption seems to have ended last night. ...plusOVPF reported that tremor disappeared Sunday evening 22:30 local time. No visible activity could be seen any more afterwards. Alert level was lowered to vigilance, but access to the Enclos remains still limited for now, in case of a sudden re-activation, which is always a possibility. [ moins] [ lire toutes] mar., 10 févr. 2015, 12:25
Piton de la Fournaise eruption 4 Feb 2015 (photo: Piere Choukroun) La Réunion-based photographer Pierre Choukroun ...plussent us this great photo from the first evening of the eruption, showing the typical alignment of active vents along the eruptive fissure. View the whole gallery. [ moins] [ lire toutes] mar., 10 févr. 2015, 10:13
View of the active lava flow at Piton de la Fournaise volcano last night The eruption continues without major changes. The volcano observatory OVPF reports low, but stable tremor levels. Webcam imagery from last night (before clouds obscure views) show that the eruption is mainly effusive with only weak explosive activity (weak spattering) at the vents. ...plusCurrently, a small lava flow is active that extends approx 500 m from the base of the Dolomieu cone, enlarging the new lava field of partially overlapping flows at its base. The middle section of the lava flow is through a lava tube, making it invisible in this part on the webcam images. [ moins] jeu., 5 févr. 2015, 20:38 Lava flow from Piton de la Fournaise this evening The eruption continues with active lava flow effusion from a row of 7 vents on the upper flank of the Dolomieu crater. ...plusThe latest bulletin of OVPF reports currently low tremor and confirms that the eruptive fissure originally was 500 m long. Effusive activity quickly focussed to the lower end of it at approx. 2500 m altitude. [ moins] [ lire toutes] mer., 4 févr. 2015, 12:44 View of the eruption (OVPF webcam) A new eruption has started at the volcano, following a brief seismic crisis that started early this morning. ...plusAccording to OVPF, the new (fissure) vent should be located between Bory, Dolomieu and Rivals craters on the upper flank of the Dolomieu main cone. A lava flow is descending SSW and has already reached the base of the Dolomieu crater, i.e. the floor of the enclos. Its length is more than 1 km. [ moins] Plus sur VolcanoDiscovery:
 1-3 day excursions: If you're interested in volcanoes, there are a number of excursions you should not miss if you're in the area: hike to the craters of Stromboli volcano, climb Etna volcano, get to know the unique volcanic history of Santorini - some examples of shorter (1-3 days) tours and excursions we offer.  Volcano Special expedition: Special tour to see the ongoing eruption of Shivleuch volcano. Max 6 participants, 5 nights on location, accompanied by our team and local volcanologists. Sign up deadline Sun 24 Feb 2019! |
