Thursday 29 May 2014

Volcanos

Roundup of Global Volcanic Activity

Shiveluch (Kamchatka): The volcano produced a steam and ash plume during today that rose to estimated 20,000 ft (6 km) altitude and drifted east.

Dukono (Halmahera): Activity continues to be elevated at the volcano. An ash plume at estimated 10,000 ft (3 km) altitude extended 35 nautical miles to the west this morning.

Popocatépetl (Central Mexico): The number of steam-gas and sometimes ash emissions has increased a bit to approx 8 per hour. No other significant changes occurred at the volcano.

Santa María / Santiaguito (Guatemala): The new lava flow on the eastern flank of the Caliente dome continues to advance slowly and produce avalanches. Small explosions occurred, generating ash plumes up to 700 m high. Rainfalls caused a medium-sized lahar in the Nima I river yesterday at dawn.

Fuego (Guatemala): The lava flow has disappeared and explosive activity in turn increased. The observatory reported ash plumes up to 600 m high and drifting SW to 8 km distance. Shock waves accompanied the stronger explosions. Rainfalls triggered a lahar in the Las Lajas river canyon.

Reventador (Ecuador): Weak to moderate effusive and explosive activity continues at the volcano. Cloud cover prevents direct observations most of the time, but the seismic signal shows tremor and explosion signals. A thermal hot spot indicates that lava continues to build up at the summit lava dome.

Ubinas (Peru): Activity continues to show an overall decreasing trend. A small explosion occurred this morning at the volcano, producing a dark ash plume that rose several hundred meters.

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