Volcanic activity worldwide 3 May 2013: Fuego, Popocatépetl, Tungurahua, Sakurajima, Nevado del Ruiz
Friday May 03, 2013 16:51 PM |
SO2 plume from Popocatépetl yesterday (NOAA)
Seismic signal from Ruiz this morning (OLL station, INGEOMINAS)
Current seismic signal from RETU station (IG)
Popocatépetl (Central Mexico): Some small earthquake swarms have occurred at the volcano in the past days, probably associated with some batches of fresh magma intruding into the system at shallow depth.
This resulted in increased degassing, visible as a significant SO2 plume on NOAA satellite data. Surface activity, however, has remained low with very few emissions and only faint glow at the summit.
Fuego (Guatemala): Activity has further decreased with very few explosions reported since yesterday, and no activity at the lava flows.
Also, Santiaguito has been rather calm today, and no direct observations could be made at Pacaya.
Nevado del Ruiz (Colombia): Seismic activity is still elevated, but has been decreasing today, possibly meaning that the most recent magma intrusion is coming to an end (with no eruption).
Tungurahua (Ecuador): Eruptive activity has not changed much. The volcano observatory reported ongoing steam and ash emissions producing a plume oscillating between 1.5-3 km height above the crater and drifting into westerly directions, and occasional small to moderate explosions. Light ash fall occurred in Cevallos and Mocha. Incandescence was visible at the summit.
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