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Volcanic activity worldwide 18 Mar 2014: Etna, Santa María / Santiaguito, Fuego, Karymsky, Dukono, ...

mardi mars 18, 2014 18:32 |

Glow from weak strombolian activity at Etna's NSEC
Glow from weak strombolian activity at Etna's NSEC
Sinabung volcano yesterday (steam indicates hot areas on the lava lobe)
Sinabung volcano yesterday (steam indicates hot areas on the lava lobe)
Strombolian eruption from Fuego last night
Strombolian eruption from Fuego last night
Etna (Sicily, Italy): There have been no significant changes in activity. Mild strombolian explosions continue at the summit vent of the New Southeast Crater (NSEC) and lava emission continues to feed flows from the effusive vents at the eastern side of the cone.

Karymsky (Kamchatka): Intermittent strombolian to vulcanian explosions continue at the volcano. This morning, VAAC Tokyo reported an ash plume at 7,000 ft (2.1 km) altitude extending SE from Karymsky.

Sinabung (Sumatra, Indonesia): The volcano continues to be active with no significant changes, but an overall decreasing trend. Lava effusion feeds the viscous lava extrusion lobe on its southern flank, which has been mainly growing on its eastern side.
No significant pyroclastic flows have occurred recently, only frequent smaller rockfalls. Small ash plumes continue to be regularly visible on satellite imagery.
The most recent report by VSI shows that seismicity has decreased overall. Hybrid earthquakes, indicators of rock fracturing by magma moving into the system, have disappeared. This suggests that pressure and magma supply rate have dropped a lot and that the eruption could be ending in a near future.

Dukono (Halmahera): Intense explosive activity, probably strombolian-type, continue at the volcano. Darwin VAAC reports ash plumes at 8,000 ft (2.4 km) altitude extending 80 nautical miles to the SW.

Kilauea (Hawai'i): (17 Mar) Lava lake at Kilauea summit remains stable at a high point of 37m (124ft) and despite rainy and windy conditions over the weekend, the summit glow viewing is still clear and as bright as ever from the Jaggar Museum.

Santa María / Santiaguito (Guatemala): Activity remains essentially unchanged. Viscous lava flows are active on the E and SW sides of the Caliente dome.
INSIVUMEH warns against the potential of hot lahars that the current and expected heavy rainfalls could trigger, re-mobilizing loose pyroclastic material that has been accumulating at the feet of the dome. The draining riverbeds of Nima I, Nima II, Samala, and San Isidro are the areas most at risk.

Fuego (Guatemala): Strombolian activity at the volcano has decreased a bit. Weak to moderate explosions occur at irregular intervals typically in the range of 1 hour, eject abundant incandescent lava to 100-150 m above the crater and generate avalanches on the upper slopes. The lava flow has stopped being active.
Actualités précédentes
Current seismic signal at CRST station in La Restinga (IGN)
lundi, mars 17, 2014
El Hierro (Canary Islands, Spain): (17 Mar) What looks like a new swarm of earthquakes accompanied by strong harmonic tremor appeared on the southernmost seismic station at La Restinga. If it is not due to some local, human-induced work or malfunction, it suggests that the quakes are very shallow, since they don't appear on the signals of other stations. ... [details]
Location of earthquakes under El Hierro since yesterday
samedi, mars 15, 2014
El Hierro (Canary Islands, Spain): A new swarm of earthquakes started yesterday. So far, almost 200 tiny quakes (none above magnitude 3 so far) have occurred in a broad N-S oriented area beneath the NE part of the island at around 18 km depth. ... [details]
vendredi, mars 14, 2014
Kilauea (Hawai'i): (14 Mar) Kilauea summit lava-lake level stabilizes at 40m (131ft) below the floor of Halema`uma`u crater - will the lava lake rise or fall next? ... [details]
Map of seismicity near Cerro Negro volcano (Image: INGEOMINAS / Pasto Observatory)
jeudi, mars 13, 2014
Kilauea (Hawai'i): (12 Mar) Eighteen earthquakes were strong enough to be located beneath Kilauea Volcano in the past 24 hours - about average for the past couple weeks ... [details]
MODIS hot spot at Chirpoi volcano (ModVolc, Univ. Hawaii)
mercredi, mars 12, 2014
Karymsky (Kamchatka): An ash plume to 7,000 ft (2.1 km) altitude and extending SW was reported early this morning (VAAC Tokyo). ... [details]

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