Volcanos

Roundup of Global Volcanic Activity

Kliuchevskoi (Kamchatka): The explosive-effusive eruption of the volcano probably finished. According to KVERT, volcanic tremor significant decreased yesterday and no lava or ash emissions could be seen any more at the summit crater. Moderately degassing and a thermal anomaly at the summit continue. Aviation color code was lowered from orange to yellow.

Shiveluch (Kamchatka): Explosions continue to occur at the volcano sporadically, although none of the previous days has been as strong as the violent eruption on 28 Feb. The most recent was an explosion yesterday morning, producing an ash plume that rose to approx. 25,000 ft (7.5 km) altitude, but no pyroclastic flows. KVERT maintains aviation color code orange.

Soputan (North Sulawesi, Indonesia): Activity continues at the volcano, but has been decreasing. Following the strong explosion on Saturday, mild lava fountaining from two vents and the effusion of a small lava flow on the western flank occurred,- signs that the eruption had been caused by a new batch of fresh magma. Seismic activity remains strong.

Fuego (Guatemala): The volcano is in mild to moderate strombolian activity with a few explosions on average per hour. Incandescent material is being ejected to 100 m above the crater and ash plumes rise up to 800 m. A phase of strong lava effusion on 1-2 March had produced a lava flow reaching 2 km length.

San Cristobal (Nicaragua): Two explosions occurred last Thursday afternoon, producing moderately strong ash emissions of a few hundred meters height. No damage was reported, only slight ash fall causing visibility problems on nearby roads and similar minor problems.

Turrialba (Costa Rica): Small ash emissions were observed yesterday.A series of 4 small explosions occurred between 13:41 and 15:17 local time, generating plumes of up to 500 m height. It is not known at the moment, if the eruptions are phreatic, i.e. the result of exploding overheated water, or caused by fresh magma arriving at the summit.