Volcano Discovery Tuesday May 21, 2013 19:04 PM |
Glow from Popocatépetl's summit (CENAPRED webcam)
Sangeang Api (Indonesia): An increase in seismicity since 26 April triggered VSI to rise the alert status from 2 to 3 on a scale of 1-4 (from "Waspada", "watch" to Siaga", alert). For the moment, only degassing has been observed as surface activity.
A similar increase in seismic activity was observed in Oct 2012, when the alert was raised as well and then reduced again in November.
Popocatépetl (Central Mexico): Activity has been a bit calmer over the past 2 days, but the number of emissions and small explosions (about 3 per hour) remains elevated. Explosions ejected incandescent fragments to heights of 500 m above the crater. Strong glow is visible at the volcano's summit at night. Intermittent phases of volcanic tremor and volcanic earthquakes of magnitude up to 2.1 have been registered. The volcanic alert level remains at YELLOW Phase 3.
A similar increase in seismic activity was observed in Oct 2012, when the alert was raised as well and then reduced again in November.
Popocatépetl (Central Mexico): Activity has been a bit calmer over the past 2 days, but the number of emissions and small explosions (about 3 per hour) remains elevated. Explosions ejected incandescent fragments to heights of 500 m above the crater. Strong glow is visible at the volcano's summit at night. Intermittent phases of volcanic tremor and volcanic earthquakes of magnitude up to 2.1 have been registered. The volcanic alert level remains at YELLOW Phase 3.
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