Roundup of Global Volcanic Activity:
Etna (Sicily, Italy): Following yesterday's paroxysm, it seems that a new effusive vent has opened at the SE base of the New SE crater.
Ruapehu (North Island): GNS reported that "the temperature of Crater Lake has started to rise and has now reached 30°C. It has been accompanied by some minor volcanic tremor. The chemistry data from our last sampling trip confirms the decline of temperature in the deep geothermal system.
Popocatépetl (Central Mexico): A phase of stronger, continuous emissions has started short time ago, accompanied by strong tremor. Over the past days, the volcano had been relatively calm, with 1-2 weak gas-steam-ash explosions per hour.
Galeras (Colombia): Small ash explosions continue to occur almost each day.
Nevado del Ruiz (Colombia): A (probably shallow) seismic swarm is in progress at the volcano. As INGEOMINAS mentioned in its latest report yesterday, a weak continuous tremor signal continues to be recorded, associated with elevated steaming and light ash venting, creating a plume rising about 1600 m above the volcano.
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