Volcanic activity worldwide 16 Feb 2014: Pacaya, Kelud, Ubinas, San Miguel, Santa María / Santiagui...
Sun, 16 Feb 2014, 19:05
19:05 PM |
Currently active lava flows at Etna's New SE crater
Steaming Kelut volcano this morning (photo: Aris Yanto)
Santiaguito volcano Friday morning
Tremor intensity at San Miguel volcano (MARN)
Etna (Sicily, Italy): Activity has remained essentially unchanged. Weak lava effusion from the fissure vents at the eastern flank of the New SE crater as well as sporadic strombolian explosion continue, accompanied by low tremor levels.
Seismic activity at Ubinas during 14 Feb and since 31 Jan (IGP)
Another small effusive vent on the NE base of the cone had formed and been briefly active yesterday evening, feeding a short-lived small lava flow. This vent seems no longer active today.
Kelud (East Java): The volcano continues to emit a dense steam plume and some ash, but has not produced new explosions. Apart from that the 2007 lava dome has been removed by the explosion, it is not very clear (nor easy to find out) what is currently happening in the crater.
A constant stream of analysis and interesting details about the eruption has been appearing. Among them the observation that in terms of SO2 output, impressive as it was, it was only a moderate event. The injected amount of SO2 is not sufficient to cause any noticeable (short-term) climate changes.
Satellite data have shown that the eruption column reached a maximum of 27 km altitude originally, before falling back and producing beautiful gravity waves at approx. 19 km altitude where it spread into an umbrella cloud. Read more.
Santa María / Santiaguito (Guatemala): Activity at the volcano has not changed and remains dominantly effusive. Several blocky flows descend from the upper flanks of the Caliente dome, mostly on the E and SW side, generating constant avalanches. Occasional explosions with ash plumes of 500-800 m height occur as well.
Pacaya (Guatemala): New strombolian explosions have started to occur at the Mackenney crater. This is the first eruptive activity at the summit since the paroxysm on 10 Jan which resulted in the collapse of the crater floor.
So far, the new strombolian activity has been weak, but signals the beginning of a new cycle that once again started to fill the crater again. INSIVUMEH reports about 2 explosions per hour, and ash plumes rising to about 100 m.
Fuego (Guatemala): Mild to moderate explosive activity continues at the summit vent. Occasional strombolian explosions eject abundant incandescent material to heights of up to approx. 200 meters above the summit and generate ash plumes rising 500-800 m and drifting 8-10 km mostly to the S and SE. No active lava flow was observed yesterday.
San Miguel (El Salvador): Warning signs of a possible new eruption of the volcano in the near future are becoming increasingly alarming. Accompanied by an ongoing earthquake swarm, tremor (as an indicator of internal pressure) continues to climb. Pulsating gas emissions reaching 50-400 m height above the crater have been seen recently.
Sulfur dioxide (SO2) emissions remain high. Depending on wind direction and speed, air quality in downwind areas near the volcano often reaches unhealthy values.
Since 27 Jan, a total of 109 earthquakes were detected by MARN under the north flank of the Chaparrastique volcano, with magnitudes ranging between 0.6 and 1.9.
Ubinas (Peru): The volcano could be in the process of entering a new eruptive phase. Two small (likely phreatic) explosions occurred last Friday at 13:46 and 14:45 h local time (18:46 and 19:45 GMT), ejecting plumes of ash and steam rising approx. 1.5-2 km. A strong sulfur smell was noticed in up to 5 km distance.
Ubinas, Peru's most active volcano, had been showing increased signs of unrest since the beginning of the month. Episodes of tremor occurred frequently during 1-9 Feb, accompanied by intense fumarolic activity. Tremor decreased after 9 Feb, but a swarm of long-period earthquakes occurred with up to 80 quakes detected per day.
... [read more]
Volcano Activity Summary for 16 Feb 2014:
Currently erupting:Ambrym (Vanuatu)
: active lava lakes in several craters (updated 14 Aug 2013)Barren Island (Indian Ocean)
: intermittent activity, likely strombolian-type and/or lava flows (updated 4 Feb 2014)Batu Tara (Sunda Islands, Indonesia)
: strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 16 Aug 2013)Cleveland (Aleutian Islands, Alaska)
: sporadic small (phreatic?) explosions (updated 6 May 2013)Colima (Western Mexico)
: explosions and lava flows (updated 19 Jul 2013)Dukono (Halmahera)
: thermal anomaly, probably small explosive activity in summit crater (updated 6 Feb 2014)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)
: lava flow from base of New SE crater, strombolian explosions / ash emissions from NSEC (updated 4 Feb 2014)Fuego (Guatemala)
: strombolian explosions (updated 16 Feb 2014)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)
: likely lava lake in summit crater (updated 1 Aug 2013)Karkar (Northeast of New Guinea)
: possible ash eruption on 1 February (updated 15 Mar 2013)Karymsky (Kamchatka)
: occasional small explosions, thermal anomaly (updated 22 Aug 2013)Kavachi (Solomon Islands)
: no eruption since 2007 (updated 2 Feb 2014)Kelud (East Java)
: large explosive eruption on 13 Feb 2014 (updated 16 Feb 2014)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 13 Aug 2013)Kizimen (Kamchatka)
: degassing (updated 22 Aug 2013)Lokon-Empung (North Sulawesi, Indonesia)
: small explosions, lava flow? (updated 25 Jul 2013)Manam (Papua New Guinea)
: degassing, occasional ash venting (updated 28 Aug 2013)Marapi (Western Sumatra, Indonesia)
: occasional ash explosions (updated 14 Aug 2013)Nishino-shima (Volcano Islands)
: lava effusion enlarging the new island (updated 5 Feb 2014)Nyiragongo (DRCongo)
: active lava lake in summit crater (updated 12 Jun 2013)Ol Doinyo Lengai (Tanzania)
: effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)Pacaya (Guatemala)
: weak strombolian activity in summit crater (updated 16 Feb 2014)Paluweh (off Flores Island, Indonesia)
: active growing lava dome (updated 12 Aug 2013)Sakurajima (Kyushu, Japan)
: ash venting, intermittent explosions (updated 2 Feb 2014)Santa María / Santiaguito (Guatemala)
: Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 16 Feb 2014)Semeru (East Java, Indonesia)
: growing lava dome, ash venting and small to moderate explosions (updated 25 Jul 2012)Shiveluch (Kamchatka)
: growing lava dome, incandescent avalanches, occasional explosions (updated 8 Feb 2014)Sinabung (Sumatra, Indonesia)
: growing lava dome, pyroclastic flows, occasional explosions (updated 15 Feb 2014)Stromboli (Eolian Islands, Italy)
: continuing lava overflows (updated 25 Jul 2013)Suwanose-jima (Ryukyu Islands)
: strombolian to weak vulcanian explosions (updated 2 Feb 2014)Tinakula (Santa Cruz Islands, Solomon Islands)
: increased activity at the volcano (updated 8 Feb 2013)Tungurahua (Ecuador)
: intermittent small to moderrately large explosions, strong ash emissions (updated 10 Feb 2014)Veniaminof (Alaska Peninsula, USA)
: effusion of lava flows (updated 16 Aug 2013)Yasur (Tanna Island, Vanuatu)
: ash emissions, weak strombolian explosions (updated 14 Aug 2013)
Eruption warning / minor activity:Aso (Kyushu)
: steaming, occasional ash venting (updated 29 Jan 2014)Bagana (Bougainville Island, Papua New Guinea)
: ash explosions (updated 26 Aug 2013)Bezymianny (Central Kamchatka Depression)
: steaming, degassing (updated 10 Jun 2013)Chirinkotan (Northern Kuriles)
: unspecified activity - possibly lava flows (updated 7 Aug 2013)Copahue (Chile/Argentina)
: ash venting (updated 16 Aug 2013)Dieng (Central Java)
: increased degassing (updated 28 Mar 2013)Galeras (Colombia)
: sporadic ash emissions (updated 25 Jul 2013)Gamkonora (Halmahera)
: seismic swam, minor ash emissions (updated 27 May 2013)Ibu (Halmahera, Indonesia)
: growing lava dome, seismic unrest (updated 9 Jun 2013)Iliwerung (Lesser Sunda Islands)
: possible submarine eruption from Mt Hobal on 20 August (updated 20 Aug 2013)Iwo-Tori-shima (Ryukyu Islands)
: possible small ash eruption on 6 July 2013 (updated 6 Jul 2013)Kerinci (Sumatra)
: seismic unrest (updated 5 Jun 2013)Ketoi (Kurile Islands, Russia)Kikai (Ryukyu Islands)
: steaming at summit crater of Iodake, occasional weak glows (updated 5 Jun 2013)Kirishima (Kyushu)
: degassing, alert lowered (updated 30 Jul 2012)Krakatau (Sunda Strait, Indonesia)
: degassing (updated 27 Jun 2013)Langila (New Britain, Papua New Guinea)
: occasional ash explosions (updated 11 Feb 2013)Medvezhia (Kurile Islands, Russia)
: strong steaming, thermal anomaly (updated 17 Jan 2013)Merapi (Central Java, Indonesia)
: sporadic phreatic explosions (updated 24 Jul 2013)Nyamuragira (DRCongo)
: steaming/degassing from pit inside summit caldera (updated 18 Jul 2013)Papandayan (West Java)
: strong hydrothermal activity, increased seismicity (updated 6 May 2013)Poas (Costa Rica)
: occasional small phreatic explosions from lake (updated 22 Aug 2013)Popocatépetl (Central Mexico)
: degassing, sporadic small explosions (updated 2 Feb 2014)Rabaul (Tavurvur) (New Britain, Papua New Guinea)
: weak ash explosions (updated 26 Aug 2013)Rasshua (Central Kuriles)Raung (East Java)
: strombolian activity in summit crater (updated 5 Aug 2013)Reventador (Ecuador)
: ash explosions, occasional pyroclastic flows (updated 6 Feb 2014)Rincón de la Vieja (Costa Rica)
: small phreatic eruption on 11 April (updated 6 Oct 2012)Sacabaya (Northern Chile, Bolivia and Argentina)San Cristobal (Nicaragua)
: seismic unrest, occasional phreatic explosions (updated 6 Feb 2014)San Miguel (El Salvador)
: small explosions, seismic unrest, intense degassing (updated 16 Feb 2014)Sangay (Ecuador)
: degassing (updated 24 May 2013)Turrialba (Costa Rica)
: ash venting, strong degassing (updated 24 Jul 2013)Ubinas (Peru)
: seismic unrest, occasional phreatic explosions (updated 16 Feb 2014)Ulawun (New Britain, Papua New Guinea)
: degassing, ash venting (updated 5 Aug 2013)White Island (New Zealand)
: strong degassing, volcanic tremor (updated 20 Aug 2013)