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Volcanic activity world-wide 2 October 2012: El Hierro, Popocatépetl, San Miguel, Fuego, Santiaguito, Pacaya, Reventador, Little Sitkin, Batu Tara, Sakurajima

mardi oct. 02, 2012 11:50 | AUTEUR : T

October starts as a volcanically calm month. A few updates for today summarized (as usual, the links point to more detailed reports):

A new earthquake swarm could be in the making at El Hierro: Yesterday, the number of recorded quakes rose to about 15. The earthquakes, mostly small with magnitudes up to 1.9, are concentrated again in 2 areas: in the center of the island at depths of 10-15 km and in the western El Golfo area at depths of about 10 km.
No tremor signal is currently visible on IGN's recordings.

Popocatépetl's activity remains moderate with 9 weak explosions, visible glow at night and strong SO2 emissions. Weak volcanic quakes and tremor pulses were recorded as well. CENAPRED's alert status "Yellow Phase 2" remains unchanged.

Seismic activity at El Salvador's San Miguel volcano has increased. Many quakes and strong tremor pulses can be seen on current seismograms, but there are no reports of other unusual activity.

Fuego volcano and Santiaguito seem not to have changed much their typical activity, judging from live seismic data and will be updated later today (when the latest observatory report is published).

Pacaya volcano remains steaming at the surface and shaking a little bit in its underground.

Reventador volcano, Ecuador: A steam emission of 1 km height was observed yesterday during a rare window of clear weather.

Seismic activity at Little Sitkin volcano remains elevated, but no unusual other activity was detected.

Sakurajima volcano has been busy during the past 24 hours, with 4 explosions to a maximum of 11,000 ft ash cloud altitude.

Our other VAAC favorite and near permanent guest on the list, Batu Tara has remained quieter. For 3 days, Darwin VAAC has not reported new ash clouds.
Actualités précédentes
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]
vendredi, sept. 28, 2012
Not much new volcano activity has occurred. Most volcanoes we regularly monitor have not shown significant changes. ... [details]
jeudi, sept. 27, 2012
A new explosion took place yesterday at Sumatra's Marapi volcano. Local media reported an ash cloud rising 1.5-2 km and that the eruption was the strongest so far in 2012. ... [details]

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