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Volcanic activity world-wide 4 October 2012: El Hierro, Kilauea, Popocatépetl, Fuego, Santiaguito, Nevado del Ruiz, Sheveluch

jeudi oct. 04, 2012 09:38 | AUTEUR : T

Earthquakes have picked up again (but not much) in numbers at El Hierro volcano. As before, the quakes are concentrated in the western El Golfo and central areas of the island.

At Kilauea volcano on Hawai'i, the lava flows have now reached the coastal flat at the base of the pali.

Popocatépetl's activity fluctuates. During 2-3 Oct, only 7 weak explosions occurred. At night, crater glow is visible indicating that the lava dome is still slowly growing.

No big changes happened in the activity of Guatemalan volcanoes, but activity at Fuego volcano is on the increase and local media start to report on it as well. The volcano has been producing 1-2 weak to moderate explosions per hour, with ash plumes up to 1 km height and incandescent pulses of 200 m above the crater. Shock waves are felt in up to 15 km distance.

Santiaguito has few weak explosions with ash plumes rising up to 700 m and constant block avalanches from the weakly active lava flows on the sides of the dome.

Nevado del Ruiz volcano is sending a strong steam plume containing a lot of SO2 into the atmosphere. Occasional weak explosions with some ash venting continue to occur from time to time.

Volcanoes in Alaska and Kamchatka have mostly remained rather calm.
The lava flow from the NW side of Sheveluch volcano's lava dome is still active and produced hot avalanches during the previous week.

You might also want to check out the recent Smithsonian / USGS Weekly Volcanic Activity Report which as usual nicely summarizes (the few) significant volcanic happenings on the planet.
Actualités précédentes
mercredi, oct. 03, 2012
A thermal hotspot was detected at Michael volcano in the South Sandwich Islands yesterday on MODIS satellite imagery, suggesting that new activity is taking place, possibly a small lava lake forming as during periods of activity in recent years. ... [details]
mardi, oct. 02, 2012
October starts as a volcanically calm month. A few updates for today summarized (as usual, the links point to more detailed reports): ... [details]
lundi, oct. 01, 2012
MODIS satellite data showed hotspots at Heard Island volcano on 21 and 24 September 2012. This suggests that there was or perhaps still is some new activity at the volcano, although no further hotspots appeared on satellite data since 24 Sep. ... [details]
dimanche, sept. 30, 2012
Volcanically spoken, this has been a very calm Sunday so far with little changes to report. ... [details]
samedi, sept. 29, 2012
Fuego volcano has further increased its activity. In its latest report, INSIVUMEH counted 18 eruptions during 27-28 Sep, out of which 10 were moderately sized and produced ash plume up to 1 km height, and fountains of incandescent material of up to 200 m height, which generated avalanches on the upper crater flanks. ... [details]

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