Volcano Discovery Wednesday May 15, 2013 17:14 PM
A new steaming lava flow at Pavlof seen by a airline pilot. Photo taken at around 7 pm, May 13.
Aerial view of the growing lava dome in Popo's crater (CENAPRED)
Stromboli (Eolian Islands, Italy): Activity has remained generally elevated and seems to have increased yesterday. Current seismic recordings show strong explosion signals and an increase in tremor. A small lava overflow is currently visible from the NE crater.
Shiveluch (Kamchatka): Lava dome growth continues. This morning, an explosion and/or a partial collapse produced a volcanic ash cloud rising to 15,000 ft (4.7 km) altitude this morning by VAAC Tokyo.
KVERT reports no changes in activity for the other 5 currently active volcanoes in Kamchatka (continuing lava effusion at Tolbachik, dome growth at Kizimen and Bezymianny, intermittent mild explosions at Karymsky, strong degassing at Gorely).
Pavlov (Alaska Peninsula, USA): Eruptive activity on 13 May at Pavlof has been confirmed. Pilot images have shown a new spatter fed lava flow extending 500 m down the N flank of the volcano.
Small steam and ash eruptions were noted from Cold Bay.
Popocatépetl (Central Mexico): Activity remains elevated as new magma continues to rise to the summit at increased rate. The volcano produces intense steaming and occasional explosions that generate steam and ash plumes up to 3 km height and throw incandescent blocks to distances of 700 m. Phases of moderate continuous tremor and several volcano-tectonic earthquakes up to magnitudes 2 accompany this process. Authorities are starting preparations for evacuations should it further increase.
CENAPRED made an aerial survey flight yesterday morning and observed that the lava dome has grown significantly and is now 350 m in diameter and 50 m thick.
Volcano Activity Summary for 15 May 2013:
Currently erupting:
Ambrym (Vanuatu): active lava lakes in several craters (updated 2 May 2013)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 6 May 2013)
Bas Dong Nai (Vietnam)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 6 May 2013)
Cleveland (Aleutian Islands, Alaska): continuous small eruptions (updated 6 May 2013)
Colima (Western Mexico): frequent explosions from growing lava dome, glowing rockfalls and small pyroclastic flows (updated 25 Apr 2013)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 2 May 2013)
Erebus (Antarctica): active lava lake in summit crater (updated 21 Jan 2012)
Erta Ale (Ethiopia): active lava lake in northern pit crater, active hornito with intermittend flow in southern crater (updated 11 Jan 2013)
Etna (Sicily, Italy): ash emissions and strombolian activity at New SE crater (updated 27 Apr 2013)
Fuego (Guatemala): weak to moderate strombolian activity (updated 14 May 2013)
Gamalama (Halmahera): ash eruptions since 17 Sep (updated 17 Sep 2012)
Grozny (Iturup Island): fumarolic activity (updated 3 Apr 2013)
Heard (Australia, Southern Indian Ocean): possible lava lake in summit crater (updated 2 May 2013)
Karkar (Northeast of New Guinea): possible ash eruption on 1 February (updated 15 Mar 2013)
Kilauea (Hawai'i): lava lakes in Halemau'uma'u and Pu'u 'O'o, lava flows on coastal flat and weakly active ocean entries (updated 20 Apr 2013)
Kizimen (Kamchatka): growing lava dome, lava flow on eastern flank, avalanches (updated 13 May 2013)
Lokon-Empung (North Sulawesi, Indonesia): frequent small to moderate ash explosions (updated 6 May 2013)
Manam (Papua New Guinea): strombolian explosions, lava flow on southern flank (updated 16 Apr 2013)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 20 Apr 2013)
Ol Doinyo Lengai (Tanzania): spattering and lava flows of natrocarbonatite lava inside the summit crater (updated 9 Dec 2012)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 13 May 2013)
Pavlov (Alaska Peninsula, USA): small lava flow (updated 15 May 2013)
Popocatépetl (Central Mexico): strong degassing, ash explosions, growing lava dome (updated 15 May 2013)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): ash emissions, small explosions (updated 14 Mar 2013)
Sakurajima (Kyushu, Japan): 0-3 weak to moderate vulcanian-style explosions per day, ash clouds up to 2-3 km altitude (updated 14 May 2013)
Sangay (Ecuador): no recent explosions reported (updated 27 Apr 2013)
Santa María / Santiaguito (Guatemala): advancing viscous active lava flows, weak occasional explosions (updated 14 May 2013)
Semeru (East Java, Indonesia): growing lava dome, ash venting and small to moderate explosions (updated 25 Jul 2012)
Shiveluch (Kamchatka): slow dome growth, occasional explosions and pyroclastic flows (updated 15 May 2013)
Stromboli (Eolian Islands, Italy): continuing lava overflows (updated 15 May 2013)
Tinakula (Santa Cruz Islands, Solomon Islands): increased activity at the volcano (updated 8 Feb 2013)
Tolbachik (Kamchatka): effusion of fluid lava flows (updated 13 May 2013)
Tungurahua (Ecuador): ash emissions, explosions (updated 14 May 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 8 Apr 2013)
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