Volcanos

Roundup of Global Volcanic Activity

Chirpoi (Kurile Islands, Russia): A thermal anomaly on satellite images and steam-gas emissions continued during the past week at Snow volcano. Aviation Color Code remained at Yellow. (Smithsonian / USGS Weekly Volcanic Activity Report 25-31 March 2015)

Chirinkotan (Northern Kuriles): A thermal anomaly at the volcano remains visible on cloud-free satellite images.

Popocatépetl (Central Mexico): Activity at the volcano has remained essentially unchanged, but dropped overall during the past week.

At 21:13 on 24 March activity at Popocatépetl increased and a four-hour series of explosions produced steam, gas, and ash emissions that rose 3 km. Incandescent tephra was ejected 800 m onto the NE and SE flanks. The last explosion in the series was detected at 0118 on 25 March. Additional explosion on 25 March ejected tephra and generated steam, gas, and ash plumes; the plumes rose 2 km and drifted NE and SE causing ashfall in Atlixco, Puebla.

During 26-31 March the seismic network recorded between 21 and 86 emissions per day that sometimes contained ash. Cloud cover often prevented observations of the crater, although ash plumes and nighttime crater incandescence were noted. Continuous steam, gas, and ash emissions on 26 March rose 600 m and drifted ENE.