Volcanic activity worldwide 26 Jan 2014: Klyuchevskoy, Nishino-shima, Santa María / Santiaguito, Pa...
Sun, 26 Jan 2014, 12:20
12:20 PM |
The lava flow from Etna's New SE crater this morning
Strombolian activity at New SE crater ( by courtesy of INGV-OE Catania)
Steam/ash plume from Klyuchevskoy volcano today (KVERT webcam)
The former new island off Nishino-Shima seen on 20 Jan 2014(Japan Coast guard)
Etna (Sicily, Italy): After a more vigorous phase yesterday, the effusion of the lava flow into the Valle del Bove and explosive (strombolian) activity at the New SE crater still continued this morning but have decreased in intensity.
MODIS hot spot data (past 2 days) for Pacaya volcano - a significant reduction of the hot areas is visible (ModVolc, Univ. Hawaii)
Last night the mild strombolian activity picked up to become intense.
The lava flow from the fissure vent at the eastern base of the New SE crater is still alimented and descend towards Valle del Bove.
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Gorely (Southern Kamchatka): KVERT had reduced the alert level of the volcano back to green on 23 Jan. Degassing and seismic activity had decreased significantly in December and remained at low levels since.
KVERT writes: "Activity of Gorely volcano decreased significantly on December, 2013. Volcanic tremor is not registering from December 12, 2013. A temperature of thermal anomaly decreased to minus from December 12-15, 2013. A thermal anomaly was not detecting over the volcano in January 2014. But weak seismic activity of Gorely volcano continues because it is the active volcano. Video data showed a weak or moderate gas-steam activity of the volcano."
Klyuchevskoy (Kamchatka): A new eruptive phase appears to have started at the volcano. VAAC Tokyo reported continuous ash emission and an ash plume drifting north at estimated 16,000 ft (5 km) altitude.
Webcam images show a significant increase in steaming occurred today, which produced an impressive plume that likely contains ash. So far, KVERT has not commented on new activity and the aviation color code is still kept at green (but this is likely to change if activity continues or a new eruption is confirmed). The following video shows today's activity:
Nishino-shima (Volcano Islands, Japan): The volcano continues to enlarge the island with lava flows, but seems to have increasingly explosive activity as well. Ash plumes to altitudes of 4,000 ft (1.2 km) were reported during the past days. These could have originated from more violent water-magma interaction (phreatomagmatic activity) or simply stronger strombolian explosions.
As recent imagery by the Japanese Coast guard shows, new lava flows continued to effuse at low rate and slowly increase the size of what started as a new island, now merged and surpassed in size the older Nishino-Shima island. On the new land, 2 vents remain active, one of which was observed to produce mild strombolian explosions and spattering of liquid lava.
Santa María / Santiaguito (Guatemala): Activity has remained essentially unchanged. The lava dome produces intermittent weak to moderate explosions (with ash plumes up to 500-700 m height) and abundant avalanches at the active block lava flow fronts, especially on the eastern and southeastern side of the dome. Collapses at these fronts can produce small pyroclastic flows.
Pacaya (Guatemala): The lava flow emission from the southern fissure vent has gradually decreased or even stopped during the past days.
The seismic signal suggests ongoing deep-seated strombolian explosions inside the new crater at the summit of the Mackenney cone.
Fuego (Guatemala): Activity at the volcano was characterized by weak to moderate strombolian explosions occurring at rates of 2-3 per hour. Abundant incandescent material is ejected and forms avalanches on the upper slopes.
Sometimes strong shock waves accompany the explosions and rattle windows and roofs of houses in the areas of Panimache, Morelia and others. Ash plumes rise to up to 700 m above the crater.
The recent lava flow seems to have stopped.
Volcano Activity Summary for 26 Jan 2014:
Currently erupting:Ambrym (Vanuatu)
: active lava lakes in several craters (updated 13 Jan 2014)Bagana (Bougainville Island, Papua New Guinea)
: ash explosions (updated 10 Dec 2013)Batu Tara (Sunda Islands, Indonesia)
: strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 6 Nov 2013)Colima (Western Mexico)
: explosions and lava flows (updated 22 Jan 2014)Dukono (Halmahera)
: thermal anomaly, probably small explosive activity in summit crater (updated 24 Jan 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 26 Jan 2014)Ibu (Halmahera, Indonesia)
: growing lava dome, seismic unrest (updated 23 Oct 2013)Karymsky (Kamchatka)
: occasional small explosions, thermal anomaly (updated 22 Jan 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)Nishino-shima (Volcano Islands, Japan)
: lava effusion enlarging the new island (updated 26 Jan 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)
: deep-seated explosive activity, lava effusion ending (updated 26 Jan 2014)Reventador (Ecuador)
: ash explosions, occasional pyroclastic flows (updated 14 Nov 2013)Sakurajima (Kyushu, Japan)
: ash venting, intermittent explosions (updated 22 Jan 2014)Santa María / Santiaguito (Guatemala)
: Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 26 Jan 2014)Semeru (East Java, Indonesia)
: growing lava dome, ash venting and small to moderate explosions (updated 18 Oct 2013)Shiveluch (Kamchatka)
: growing lava dome, incandescent avalanches, occasional explosions (updated 24 Jan 2014)Sinabung (Sumatra, Indonesia)
: growing lava dome, pyroclastic flows, occasional explosions (updated 24 Jan 2014)Stromboli (Eolian Islands, Italy)
: continuing lava overflows (updated 3 Nov 2013)Suwanose-jima (Tokara Islands, Japan)
: strombolian to weak vulcanian explosions (updated 24 Jan 2014)Yasur (Tanna Island, Vanuatu)
: ash emissions, weak strombolian explosions (updated 20 Nov 2013)
Eruption warning / minor activity:Aso (Kyushu)
: intense degassing, occasional ash venting and crater glow (updated 20 Jan 2014)Barren Island (Indian Ocean)
: lava flows (?) (updated 23 Dec 2013)Chaitén (Southern Chile and Argentina)
: degassing, possible renewed slow growth of lava dome (updated 24 Dec 2013)Chirinkotan (Northern Kuriles)
: unspecified activity - possibly lava flows (updated 22 Nov 2013)Copahue (Chile/Argentina)
: ash venting (updated 16 Nov 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 22 Jan 2014)Galeras (Colombia)
: sporadic ash emissions (updated 22 Jan 2014)Heard (Australia, Southern Indian Ocean)
: likely lava lake in summit crater (updated 23 Dec 2013)Iliwerung (Lesser Sunda Islands)
: possible submarine eruption from Mt Hobal on 20 August (updated 20 Aug 2013)Jebel Zubair (Red Sea)
: no signs of activity after 24 Nov 2013 (updated 26 Nov 2013)Karangetang (Siau Island, Sangihe Islands, Indonesia)
: lava extrusion at summit crater, strombolian activity, glowing avalanches (updated 4 Sep 2013)Ketoi (Kurile Islands, Russia)Kizimen (Kamchatka)
: degassing (updated 27 Dec 2013)Klyuchevskoy (Kamchatka)
: ash emissions, strong steaming (updated 26 Jan 2014)Langila (New Britain, Papua New Guinea)
: occasional ash explosions (updated 22 Nov 2013)Lokon-Empung (North Sulawesi, Indonesia)
: small explosions, lava flow? (updated 24 Sep 2013)Manam (Papua New Guinea)
: degassing, occasional ash venting (updated 5 Dec 2013)Marapi (Western Sumatra, Indonesia)
: occasional ash explosions (updated 19 Jan 2014)Nevado del Ruiz (Colombia)
: intense degassing, seismic unrest (updated 22 Jan 2014)Pagan (Mariana Islands)
: steaming, thermal anomaly (updated 9 Jan 2014)Paluweh (off Flores Island, Indonesia)
: active growing lava dome (updated 27 Dec 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 22 Jan 2014)Rabaul (Tavurvur) (New Britain, Papua New Guinea)
: weak ash explosions (updated 9 Jan 2014)Raung (East Java)
: strombolian activity in summit crater (updated 6 Jan 2014)San Miguel (El Salvador)
: new eruption on 29 Dec 2013 (updated 13 Jan 2014)Tangkubanparahu (West Java)
: occasional phreatic explosions (updated 15 Oct 2013)Turrialba (Costa Rica)
: ash venting, strong degassing (updated 24 Jul 2013)
Etna (Sicily, Italy)
: The activity continued throughout the night with a constant lava effusion from the fissure vent at the eastern base of the New SE crater and with mild strombolian activity at the summit vent. ... Read all