Volcanic activity worldwide 3 Feb 2014: Kelud, Ubinas, San Miguel, Fuego, Sinabung

Mon, 3 Feb 2014, 16:57
16:57 PM |
The new lava dome of Kelut volcano in Nov 2007
The new lava dome of Kelut volcano in Nov 2007
Number of seismic events by category until 31 Jan (VSI)
Number of seismic events by category until 31 Jan (VSI)
Tremor amplitude at San Miguel volcano over the past weeks (MARN)
Tremor amplitude at San Miguel volcano over the past weeks (MARN)
Seismic swarm on 25 Jan 2014 (IGP)
Seismic swarm on 25 Jan 2014 (IGP)
Kelud (East Java): (2 Feb) The alert level of the volcano was raised today from 1 ("normal") to 2 ("Waspada", "watch") on a scale of 1-4. During the second half of 2014, a strong increase in seismic activity and a 5.5 deg temperature increase of the crater lake water had been detected.
The number of shallow volcanic earthquakes rose from averages of 1-2 per day to approx 10 per day during 20-31 Jan and climbed to more than 100 events since the start of February alone. This might indicate a shallow intrusion is taking place and could lead to a new eruption. VSI recommends not to approach the crater within 2 km radius.
The last eruption of Kelut was in Oct-Nov 2007, when a new lava dome grew within the crater lake.

Sinabung (Sumatra, Indonesia): The activity has not much changed, but continues to show an overall decreasing trend. No significant explosions or pyroclastic flows seem to have occurred over the past 2 days.
VSI published a graph showing the seismic activity until 31 Jan, which indicates that the number of seismic events related to the rise of new magma (hybrid earthquakes and tremor) has generally been decreasing over the past weeks. This corresponds to what can be observed visually (when weather permits clear views).

Fuego (Guatemala): After a short peak of activity, the volcano has been calmer today. INSIVUMEH reported weak explosions with ash plumes rising to 600-700 m above the crater, but does not mention any lava flow.

San Miguel (El Salvador): The volcano has not erupted again, but shows increased signs of unrest. Since late January, the volcano's seismic activity has been rising significantly. MARN detected a swarms of earthquakes at very shallow 1 km depth beneath the SW flank, while a smaller number of quakes occured at approx. 6 km depth beneath the summit of the volcano.
Scientists believe that this reflects internal pressure increase, which in turn could be the result of new intruding magma. In other words, a new eruption at the volcano in a near future is a scenario that should be taken into account.

Ubinas (Peru): Two small earthquake swarms occurred in January, the latest bulletin of the Peru's Geophysical Institute (IGP) reports. The first one happened between 8-9 Jan, and the second and stronger one on 25 Jan. In addition, bluish degassing (SO2, an indicator of the presence of magma) was observed.
However, IGP mentions that these signs of unrest are still weak and could be the result of increased ground-water infiltration and not likely mean a new eruption of Ubinas is nearby.

Volcano Activity Summary for 3 Feb 2014:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 14 Aug 2013)
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 2 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)
Fuego (Guatemala): strombolian explosions (updated 3 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)
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)
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): deep-seated explosive activity, lava effusion ending (updated 28 Aug 2013)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 12 Aug 2013)
Reventador (Ecuador): ash explosions, occasional pyroclastic flows (updated 30 Jan 2014)
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 28 Aug 2013)
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 22 Aug 2013)
Sinabung (Sumatra, Indonesia): growing lava dome, pyroclastic flows, occasional explosions (updated 3 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): new eruption since 30 Jan 2014 (updated 2 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)
Etna (Sicily, Italy): intermittent strombolian explosions at New SE crater, degassing from NE crater (updated 2 Aug 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)
Rincón de la Vieja (Costa Rica): small phreatic eruption on 11 April (updated 6 Oct 2012)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Miguel (El Salvador): increased seismic activity (updated 3 Feb 2014)
Sangay (Ecuador): degassing (updated 24 May 2013)
Turrialba (Costa Rica): ash venting, strong degassing (updated 24 Jul 2013)
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)

Previous news

Sun, 2 Feb 2014, 12:05
Ash eruption from Suwanose-jima this morning
Tolbachik (Kamchatka): On 31 Jan, KVERT finally lowered the Aviation Color Code of the volcano back to green, as the volcano has been calm for a while and shows no more signs of unrest that new activity could be likely in the near future. ... Read all
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