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Piton de la Fournaise volcano
Shield volcano 2631 m (8,632 ft)
La Réunion, -21.24°S / 55.71°E
Current status: erupting (4 out of 5)
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Piton de la Fournaise volcano eruptions:
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), 2007, 2008, 2009, 2010 (Oct), 2010 (Dec), 2014 (June), 2015 (Feb), 2015 (May), 2015 (Aug-Oct), 2016 (May, Sep), 2017 (Jan-Mar), 2018 (Apr, 2x), 2018 (Sep-ongoing)
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Piton de la Fournaise volcano news & updates:

Piton de la Fournaise volcano (La Réunion): eruption continues at stable levels, beginning of deflation

Monday Jul 31, 2017 09:19 AM | BY: T

The main vent of Piton de la Fournaise's eruption on 30 July 2017 - 09h05 (local time) (image: OVPF / IPGP)
The main vent of Piton de la Fournaise's eruption on 30 July 2017 - 09h05 (local time) (image: OVPF / IPGP)
Tremor intensity during the past days (image: OVPF / IPGP)
Tremor intensity during the past days (image: OVPF / IPGP)
Map of the location of the eruption site (image: OVPF / IPGP)
Map of the location of the eruption site (image: OVPF / IPGP)
The eruption which had begun on 14 July, celebrating France's National Day, continues with little changes during the past week.
The intensity of volcanic tremor (corresponding to lava output) remains stable at approx. 50% the values at the early stages of the eruption. The volcano observatory estimates an effusion rate of at least 1-2 cubic meters of lava per second.
At the vent, the originally 7 fountains had quickly concentrated onto a single main vent, where a new cinder cone is growing now. After shifting from lava fountaining to strombolian bursts in the early days, it is now completely closed and only produces intermittent small strombolian-type ejections from the main vent, and rarely, from a secondary vent at its northern edge.
Lava effusion continues, but it is mostly inside lava tunnels. The flow front has not advanced over the past days and remains at approx. 2.8 km distance.
A slight trend of deflation deformation has been noticed since yesterday, which suggests that magma supply is decreasing and that it could herald a near end of the eruption.

Summary 14-25 July:
The eruption began at 00:50 local time on 14 July in an area 750 m E of the Kala-Pélé peak, 850 m W of Château Fort, and 2.2 km NE of Piton de Bert. In the morning, scientists observed a fissure about 450 m long with seven lava fountains rising as high as 30 m. The fountain on the downhill end had built up a cone and produced two lava flows.
On 15 July only three fountains were active. The intensity of the eruption fluctuated during 15-17 July, and by 17 July activity was concentrated at one eastern cone.
During 18-19 July a few vents within the cone were active, ejecting lava no higher than 20 m above the cone’s rim.
By 21 July several lava tubes had formed, and fractures within the tubes produced small lava flows.
During an overflight on 22 July scientists noted that the lava flow was over 2.8 km long with a maximum width of 0.6 km; the front of the flow had not advanced in the past seven days. Three main vents were active within the main cone and a fourth was just sporadically active.
(Smithsonian / USGS Weekly Volcanic Activity Report 19-25 July 2017)
Links / Sources:
Previous news
Piton de la Fournaise's new eruption this morning (image: OVPF webcam)
Friday, Jul 14, 2017
The volcano began erupting early this morning, making it the third eruption this year (after the ones in January and May). ... [more]
Satellite image of Piton de la Fournaise volcano on 13 Jul 2017
Thursday, Jul 13, 2017
Volcanic Ash Advisory Center Toulouse (VAAC) issued the following report: ... [more]
Distance variations at Piton de la Fournaise volcano showing inflation (Image: OVPF / IPGP)
Thursday, May 25, 2017
The unrest at the volcano continues - a new eruption could occur with little warning. ... [more]
Earthquakes under Piton de la Fournaise during 04:00 and 17:30 on 18 May 2017 (OVPF)
Friday, May 19, 2017
A helicopter overfly yesterday evening confirmed that the reported short-lived eruption did actually not take place: no fresh lava could be seen at the supposed site of the eruption. ... [more]
Tremor amplitude associated with Piton de la Fournaise's new eruption (image: OVPF)
Thursday, May 18, 2017
A new eruption (the second in 2017) began at the volcano yesterday afternoon with little precursory signs. The site of the new eruption is a fissure on the NE flank of the Dolomieu central crater inside the Enclos. ... [more]

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