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Volcanic activity worldwide 2 Mar 2014: Etna, Popocatépetl, Kelud, Tungurahua, Santa María / Santi...

dimanche mars 02, 2014 10:15 |

Lava flows at Enta this morning (Monte Cagliato thermal webcam, INGV Catania)
Lava flows at Enta this morning (Monte Cagliato thermal webcam, INGV Catania)
Part of Kelut's crater area on 25 Feb (image: Pasang Mata)
Part of Kelut's crater area on 25 Feb (image: Pasang Mata)
Aerial view of Popocatépetl's summit with the new pit crater (image: CENAPRED)
Aerial view of Popocatépetl's summit with the new pit crater (image: CENAPRED)
The new lava dome, about 20-30 m wide, inside Popocatépetl's crater
The new lava dome, about 20-30 m wide, inside Popocatépetl's crater
Santiaguito's Caliente lava dome yesterday morning
Santiaguito's Caliente lava dome yesterday morning
Explosion at Fuego volcano this morning
Explosion at Fuego volcano this morning
Tremor intensity at San Miguel volcano (MARN)
Tremor intensity at San Miguel volcano (MARN)
Eruption of Tungurahua on 26 Feb and small pyroclastic flows (image: S. Storm OVT/IGEPN)
Eruption of Tungurahua on 26 Feb and small pyroclastic flows (image: S. Storm OVT/IGEPN)
Etna (Sicily, Italy): No significant changes have occurred at the volcano. Lava continues to flow from the vents at the eastern flank of the New SE crater and produces overlapping flows, typically a few 100 m long, near the rim of and on the upper slope into the Valle del Bove. A small surge in lava effusion occurred during the past hours and can be seen at the end of the following time-lapse:


Karymsky (Kamchatka): The volcano continues to have strombolian to vulcanian explosions. Some of them are large enough to produce ash plumes visible on satellite imagery, such as one on 28 Feb (ash plume to 7,000 ft reported by VAAC Tokyo).

Kelud (East Java): No new explosions have occurred recently and the alert status of the volcano was lowered to 2 (Waspada, "watch") on a scale of 1-4.
A picture of parts of the crater area, taken from the caldera rim on 25 Feb, appeared on the net and shows what is described as a 15 m wide crater left by the 13 Feb eruption (but this seems rather small).

Dukono (Halmahera): Eruptions at the volcano continue, probably strombolian explosions of increased size. An ash plume was seen on satellite data reaching 12,000 ft (3.6 km) altitude and drifting 55 nautical miles (90 km) to the S (VAAC Darwin).

Kilauea (Hawai'i): (26 Feb) Last night a swarm of very deep earthquakes occurred in the area of Punalu`u on the SW flank of Kilauea in the Ka`u district of the Big Island!

Cleveland (Aleutian Islands, Alaska): No further eruptions occurred since the 2 small explosions on 25 Feb, but similar events are possible at any time.
The remote volcano is not monitored on the ground, which makes it impossible to describe the status of the volcano in detail or make any forecasts.

Popocatépetl (Central Mexico): (27 Feb) The volcano's activity increased yesterday. CENAPRED counted no less than 544 small to moderate emissions during the 24 hours between 25-26 Feb.
... [read more]
...2 Mar:
Current activity at the volcano is low with only occasional small puffs of ash. CENAPRED published an aerial picture showing the new (so far very small) lava dome in the crater.
The agency also reports 50 exhalations during 24 hours, which seems high compared to reported averages of 5-10 per day during recent weeks. However, it appears that the type of events included in these counts has changed and now includes ALL visible emissions of steam, gas or ash, however small.

Santa María / Santiaguito (Guatemala): The activity has remained unchanged, dominated by slow extrusion and avalanches of blocky lava mainly from the SE and NE flanks of the Caliente dome.
The volcano observatory mentions occasional weak to moderate explosions with ash plumes rising up to 500 m from the dome and warns of the possibility of pyroclastic flows (generated by collapse of lava flows).

Pacaya (Guatemala): Mild strombolian eruptions occur at intervals of 5-10 minutes from the Mackenney crater.

Fuego (Guatemala): Activity at the volcano has remained similar to the previous weeks, but decreased somewhat.
Explosions of small to moderate size occur at irregular intervals (approx 1-2 per hour), eject incandescent material to up to 200 m above the crater and cause impressive glowing avalanches on the upper slopes. Shock waves can be felt in several kilometers distance. Ash plumes rise several 100 m and drift 5-10 km before dissipating.

San Miguel (El Salvador): Seismic and degassing activity at the volcano decreased during the past days at bit, but remain elevated. The gas plume reached 100 m above the crater and drifted S-SW yesterday.
MARN continues to record frequent micro-earthquakes concentrated below the northern flank, indicating rock fracturing by internal (possibly magma-related) pressure.

Tungurahua (Ecuador): The volcano had a short burst of activity on 26 Feb, producing a series of moderate explosions and small pyroclastic flows reaching up to 400 m on the northern and northwestern flanks. Ash plumes rose up to 2.5 km above the crater. Since then, the volcano has been mostly quiet and only had minor emissions.
IGPEN reported continuing inflation at the top of the volcano since 15 Feb as well as long-period type earthquakes, which could indicate influx of gasses and magma in this area of the volcanic edifice.

Volcano Activity Summary for 2 Mar 2014:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 14 Aug 2013)
Barren Island (Indian Ocean): intermittent activity, likely strombolian-type and/or lava flows (updated 4 Feb 2014)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 16 Aug 2013)
Colima (Western Mexico): explosions and lava flows (updated 19 Jul 2013)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 2 Mar 2014)
Erebus (Antarctica): active lava lake in summit crater (updated 21 Jan 2012)
Erta Ale (Ethiopia): active lava lake in northern pit crater, active hornito with intermittend flow in southern crater (updated 11 Jan 2013)
Etna (Sicily, Italy): lava flow from base of New SE crater, strombolian explosions / ash emissions from NSEC (updated 4 Feb 2014)
Fuego (Guatemala): strombolian explosions (updated 2 Mar 2014)
Gamalama (Halmahera): ash eruptions since 17 Sep (updated 17 Sep 2012)
Grozny (Iturup Island): fumarolic activity (updated 3 Apr 2013)
Heard (Australia, Southern Indian Ocean): likely lava lake in summit crater (updated 1 Aug 2013)
Karkar (Northeast of New Guinea): possible ash eruption on 1 February (updated 15 Mar 2013)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 2 Mar 2014)
Kavachi (Solomon Islands): no eruption since 2007 (updated 2 Feb 2014)
Kilauea (Hawai'i): lava lakes in Halemau'uma'u and Pu'u 'O'o, lava flows on coastal flat and weakly active ocean entries (updated 13 Aug 2013)
Kizimen (Kamchatka): degassing (updated 22 Aug 2013)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 25 Jul 2013)
Manam (Papua New Guinea): degassing, occasional ash venting (updated 28 Aug 2013)
Nishino-shima (Volcano Islands): lava effusion enlarging the new island (updated 21 Feb 2014)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 26 Feb 2014)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): weak strombolian activity in summit crater (updated 2 Mar 2014)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 12 Aug 2013)
Sakurajima (Kyushu, Japan): ash venting, intermittent explosions (updated 23 Feb 2014)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 2 Mar 2014)
Semeru (East Java, Indonesia): growing lava dome, ash venting and small to moderate explosions (updated 25 Jul 2012)
Shiveluch (Kamchatka): growing lava dome, incandescent avalanches, occasional explosions (updated 26 Feb 2014)
Sinabung (Sumatra, Indonesia): effusion of viscous lava, steaming, ash emissions (updated 23 Feb 2014)
Stromboli (Eolian Islands, Italy): continuing lava overflows (updated 25 Jul 2013)
Suwanose-jima (Ryukyu Islands): strombolian to weak vulcanian explosions (updated 24 Feb 2014)
Tinakula (Santa Cruz Islands, Solomon Islands): increased activity at the volcano (updated 8 Feb 2013)
Tungurahua (Ecuador): occasional ash explosions (updated 2 Mar 2014)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)

Eruption warning / minor activity:

Aso (Kyushu): occasional weak ash emissions (updated 20 Feb 2014)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 26 Aug 2013)
Bezymianny (Central Kamchatka Depression): steaming, degassing (updated 10 Jun 2013)
Chirinkotan (Northern Kuriles): unspecified activity - possibly lava flows (updated 20 Feb 2014)
Cleveland (Aleutian Islands, Alaska): occasional small explosions (updated 2 Mar 2014)
Copahue (Chile/Argentina): ash venting (updated 16 Aug 2013)
Dieng (Central Java): increased degassing (updated 28 Mar 2013)
Galeras (Colombia): sporadic ash emissions (updated 25 Jul 2013)
Gamkonora (Halmahera): seismic swam, minor ash emissions (updated 27 May 2013)
Ibu (Halmahera, Indonesia): growing lava dome, seismic unrest (updated 25 Feb 2014)
Iliwerung (Lesser Sunda Islands): possible submarine eruption from Mt Hobal on 20 August (updated 20 Aug 2013)
Iwo-Tori-shima (Ryukyu Islands): possible small ash eruption on 6 July 2013 (updated 6 Jul 2013)
Kelud (East Java): steaming, activity at crater unknown (updated 2 Mar 2014)
Kerinci (Sumatra): seismic unrest (updated 5 Jun 2013)
Ketoi (Kurile Islands, Russia)
Kikai (Ryukyu Islands): steaming at summit crater of Iodake, occasional weak glows (updated 5 Jun 2013)
Kirishima (Kyushu): degassing, alert lowered (updated 30 Jul 2012)
Krakatau (Sunda Strait, Indonesia): degassing (updated 27 Jun 2013)
Langila (New Britain, Papua New Guinea): occasional ash explosions (updated 11 Feb 2013)
Marapi (Western Sumatra, Indonesia): occasional ash explosions (updated 26 Feb 2014)
Medvezhia (Kurile Islands, Russia): strong steaming, thermal anomaly (updated 17 Jan 2013)
Merapi (Central Java, Indonesia): sporadic phreatic explosions (updated 24 Jul 2013)
Nyamuragira (DRCongo): steaming/degassing from pit inside summit caldera (updated 18 Jul 2013)
Papandayan (West Java): strong hydrothermal activity, increased seismicity (updated 6 May 2013)
Poas (Costa Rica): occasional small phreatic explosions, intense degassing (updated 26 Feb 2014)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 2 Mar 2014)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): weak ash explosions (updated 26 Aug 2013)
Rasshua (Central Kuriles)
Raung (East Java): strombolian activity in summit crater (updated 5 Aug 2013)
Reventador (Ecuador): ash explosions, occasional pyroclastic flows (updated 6 Feb 2014)
Rincón de la Vieja (Costa Rica): small phreatic eruption on 11 April (updated 6 Oct 2012)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): seismic unrest, occasional phreatic explosions (updated 6 Feb 2014)
San Miguel (El Salvador): small explosions, seismic unrest, intense degassing (updated 2 Mar 2014)
Sangay (Ecuador): degassing (updated 24 May 2013)
Turrialba (Costa Rica): ash venting, strong degassing (updated 24 Jul 2013)
Ubinas (Peru): seismic unrest, occasional phreatic explosions (updated 16 Feb 2014)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)
White Island (New Zealand): strong degassing, volcanic tremor (updated 20 Aug 2013)

Actualités précédentes
Glow from Shiveluch's lava dome and steam/ash plume
mercredi, févr. 26, 2014
Shiveluch (Kamchatka): Although no larger explosions or dome collapses have occurred in the past days, the activity at the volcano remains intense and such events could happen any time again. The clear weather today showed the active lava dome still grows on both sides, produces smaller avalanches and an intense steam plume that sometimes contains volcanic ash: ... [details]
Thermal image of the eastern flank of Etna, showing the active lava flows from the NSEC
mardi, févr. 25, 2014
Etna (Sicily, Italy): Mild strombolian activity from the New SE crater and weekly alimented lava effusion from the fissure vents at its eastern base continue. ... [details]
Glow from an eruption at Suwanose-jima volcano (JMA webcam)
lundi, févr. 24, 2014
Suwanose-jima (Ryukyu Islands): Activity has been higher today. The volcano had several smaller explosions today. Plumes rose to altitudes of approx 2,000 ft (1.8 km). ... [details]
The lava flows at Etna this evening
dimanche, févr. 23, 2014
Etna (Sicily, Italy): Activity has remained more or less unchanged. The lava flows from the fissure vents on the eastern flank of the New SE crater continue to be weakly alimented and produce overlapping smaller flows. Most of them only reach only few hundred meters length, and rarely descend into the steeper western wall of Valle del Bove. As a result, most lava accumulates in the less steep area at the foot of the cone. ... [details]
Glow from the active lava dome of Shiveluch this morning (KVERT webcam)
jeudi, févr. 20, 2014
Shiveluch (Kamchatka): Activity at the volcano remains elevated. The lava dome extrudes currently 2 lobes of viscous lava, a larger one on the NW side and a smaller one on the SE side, which seems to have appeared around 16 Feb. The active parts of the dome suffer frequent small to moderate-sized avalanches (mainly from the NW side). Bright glow can be seen at night. ... [details]

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