Roundup of Global Volcanic Activity:
Popocatépetl (Central Mexico): Activity has continued to decrease and there have been no new significant explosions. The number of steam-gas emissions (which sometimes contain also small amounts of ash) has dropped from an average of 5 per hour to only 2 per hour last night.
Pacaya (Guatemala): As the seismic signal suggested, a strong increase in activity occurred yesterday evening and culminated in the effusion of a lava flow from the Mackenney crater which lasted about 2 hours. The activity returned back to mild strombolian activity afterwards, with projections reaching about 200 m height and ash plumes rising to 400 m above the crater.
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