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Summary of world-wide volcanic activity 23-29 May 2012

Fri, 1 Jun 2012, 15:46
15:46 PM | BY: T
The new Smithsonian / USGS Weekly Volcanic Activity Report is summarized as follows:

-- new activity ---

Galunggung (West Java, Indonesia): unrest disappears, alert level lowered back to normal
Fuego (Guatemala): strong strombolian activity, ash plumes up to 2 km height, occasional pyroclastic flows
Nevado del Ruiz (Colombia): possible minor eruption on 22 May, increase of activity and ash emissions on 29-30 May, eruptive activity
Sirung (Pantar Island, Indonesia): weak steaming, alert lowered to 2 (out of 4)
Soputan (North Sulawesi, Indonesia): increased seismic activity since 25 May, steaming from summit crater, eruption warning

--- ongoing activity ---

Bagana (Bougainville Island, Papua New Guinea): lava flow detected on satellite 16 May
Cleveland (Aleutians): no activity detected
Dukono (Halmahera Island, Indonesia): intermittent strong explosions, ash plumes reaching 4-5 km altitude
Karmysky (Kamchatka): possible moderate eruption on 27 May with ash plume reaching 3 km altitude
Popocatépetl (Mexico): ash venting and explosions, ash columns rising up to 2 km, incandescent tephra ejected occasionally
Sakurajima (Japan): strong intermittent explosive activity, ash plumes reaching 4.6 km altitude
Sangay (Ecuador): possible ash eruption on 28 May
Santiaguito (Guatemala): moderate ash explosions 400-900 m high, glowing avalanches and viscous lava flow from dome
Shiveluch (Kamchatka): strong explosive activity, ash plumes up to 10 km altitude on 19-20 May
Tungurahua (Ecuador): ash venting and intermittent explosions, plumes up to 2.5 km above crater, ash fall
Links / Sources:
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Thu, 24 May 2012, 09:40
The past week was dominated by the paroxysm at Fuego volcano on 20 May and ongoing strong explosive activity at Shiveluch in Kamchatka. The new Smithsonian / USGS Weekly Volcanic Activity Report was published today and is summarized as follows: ... read all

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