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Volcanic activity worldwide 22 Jan 2014: Pacaya, Fuego, Sakurajima, Etna, Santa María / Santiaguito...

Mittwoch Jan 22, 2014 09:57 |

Medium-sized explosion from Sakurajima this morning
Medium-sized explosion from Sakurajima this morning
Ash plume from an eruption at Suwanose-jima this morning
Ash plume from an eruption at Suwanose-jima this morning
Colima's western flank seen during an overflight a week ago (Unidad Estatal de Protección Civil y Bomberos, Jalisco)
Colima's western flank seen during an overflight a week ago (Unidad Estatal de Protección Civil y Bomberos, Jalisco)
Small eruption from Popocatépetl yesterday
Small eruption from Popocatépetl yesterday
MODIS hot spot data (past 2 days) for Pacaya volcano (ModVolc, Univ. Hawaii)
MODIS hot spot data (past 2 days) for Pacaya volcano (ModVolc, Univ. Hawaii)
Fuego's seismic signal this morning (FG3 station, INSIVUMEH)
Fuego's seismic signal this morning (FG3 station, INSIVUMEH)
Current seismic signal from Nevado del Ruiz volcano (OLL station, INGEOMINAS)
Current seismic signal from Nevado del Ruiz volcano (OLL station, INGEOMINAS)
Etna (Sicily, Italy): Since last night, sporadic small strombolian explosions have resumed at the New SE crater. The current tremor signal is low, but if Etna continues its activity as during much of last year, this could be a first precursor to a new paroxysm in the following days.


Gorely (Southern Kamchatka): No changes were reported by KVERT. The volcano continues to show intense degassing and elevated seismic activity.
Gorely, one of currently 5 volcanoes at unrest or in eruption in Kamchatka remains at Aviation Color Code yellow, along with Bezymianni and Tolbachik, while currently erupting Shiveluch and Karymsky volcanoes are at orange.

Karymsky (Kamchatka): The volcano continues to have sporadic small to medium-sized strombolian-vulcanian explosions from its summit crater. Small ash plumes are regularly being detected on satellite imagery.

Shiveluch (Kamchatka): Another explosion was reported this morning by KVERT via VAAC Tokyo. An ash plume rose to estimated 27,000 ft (8 km) altitude.

Tolbachik (Kamchatka): Although no new eruptive activity has been recorded in the past months, the volcano continues to be at Aviation Color Code yellow. Moderate seismic activity of the volcano continues. Satellite data showed a weak thermal anomaly over the northern area of Tolbachinsky Dol. (KVERT)

Bezymianny (Central Kamchatka): KVERT reports "no detectable seismicity. Moderate gas-steam activity was observed. Satellite data showed the volcano was quiet."

Sakurajima (Kyushu, Japan): The volcano had an explosion this morning followed by near-continuous ash venting. The eruption sent an ash plume over Tarumizu town to the SW (see video). VAAC Tokyo estimated the maximum height of the ash plume to 17,000 ft (5 km), but webcam images suggest a significantly smaller size (2-3 km altitude). Overall, the volcano has been comparably calm over the past week.


Suwanose-jima (Tokara Islands, Japan): The volcano continues to be in eruption. It regularly has (probably strombolian-type) explosions that produce small to medium-sized ash plumes up to 1-2 km in height.

Sinabung (Sumatra, Indonesia): Activity at the volcano continues at reduced rate. The lava dome continues to be active with intense degassing and ash venting, and has produced a series of sporadic smaller pyroclastic flows over the past days.

Colima (Western Mexico): The volcano produces small explosions (reportedly 7-12 daily) generating small ash plumes up to about 1 km high.
An overflight revealed no significant changes at the summit crater where a lava dome is still growing at slow rate and produces small avalanches on the western side. Civil Protection warns of landslides from the steep slopes where a lot of fresh flows and loose material has accumulated over the past months.
... [read more]

Popocatépetl (Central Mexico): The volcano remains at low activity levels with little changes. CEAPRED reported 2 low-intensity emissions of steam and gas during yesterday, and 2 small explosions that produced minor amounts of ash with the largest yesterday morning at 10:28 (local time) producing a plume reaching 1000 m. Crater glow at night is visible.

Santa María / Santiaguito (Guatemala): Volcanic activity from the active dome remains more or less unchanged both explosive and effusive. The volcano observatory reports small explosions (on average 1-2 per hour), significant degassing, and weak to moderate block avalanches at the active viscous flows on the sides of the Caliente lava dome.

Pacaya (Guatemala): While explosive activity seems to have ceased, lava effusion from the southern fissure vent at the base of the Mackenney cone continues and feeds an active flow field that expands up to 3.6 km from the vent.
Slowly advancing lava flow fronts continue to burn vegetation and have cut, as in 2010, the dirt road between the villages of El Rodeo and Pocitos.
The vent on the NW flank that fed the second large flow during the recent paroxysm is no longer active. Continuous tremor and bluish degassing from the summit accompany this process. According to the latest information of CONRED, the crater floor of the Mackenney cone has collapsed into a deep pit and the active cone at the vent that had been built over the past year has vanished.

Fuego (Guatemala): It appears that activity has increased over night. A strong continuous seismic signal (probably tremor) suggests an increase in lava effusion could be occurring. The next update from INSIVUMEH later today will give a better picture.
During the past days, activity had been dominated by frequent small to medium strombolian explosions that eject abundant lava up to about 150 m above the vent, ash plumes up to 1 km high, shock waves felt in up to 10-12 km distance and continuing weak lava effusion on the upper southern flank. Its length yesterday was estimated about 200 m.

Nevado del Huila (Colombia): A small increase in volcanic-tectonic earthquakes was noted by INGEOMINAS' volcano observatory in Popayán. A total of 138 seismic events were recorded over the past week, out of 112 were volcanic-tectonic quakes and the remaining 26 events related to fluid movements inside the conduits (long-period quakes and one tremor pulse).
Two earthquakes above magnitude 3 occurred on 17 and 19 January,, the latter (mag. 3.4) was felt in the village of Sin Candela and areas of Paez (Cauca).

Machin (Colombia): The volcano continues to be at yellow alert (one of 6 in Colombia) as seismic activity remains elevated, but at low energy levels.

Galeras (Colombia): Pasto volcano observatory reports in its weekly update persistent low levels in number and energy of seismic events, no new explosions. Two small volcano-tectonic earthquakes occurred on 15 and 20 January with magnitudes of 2.3 and 2.4 on the Richter scale.

Nevado del Ruiz (Colombia): No major changes have occurred over the past week. The volcano produces intense degassing, with steam/gas plumes rising up to 2.5 km above the crater. Seismic activity has remained similar to past weeks at fluctuating low to medium levels.
Most seismic activity observed is related to internal rock fracturing (volcano-tectonic), but there are also weak pulses of tremor and earthquakes associated with internal fluid movements and the degassing.

Cumbal (Colombia): Seismic unrest at weak energy levels continues. 5 small earthquake swarms were recorded over the past week, the most prominent having 213 events up to a maximum of magnitude 1.9 during 5 hours on 19 Jan. Most quakes are associated with rock fracturing at shallow depths (3 km) beneath the La Plazuela crater. Pasto reports no unusual surface activity at the volcano.

Sotará (Colombia): Popayán volcano observatory reports no changes at the volcano, which continues to show weak seismic unrest.

Volcano Activity Summary for 22 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 20 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 22 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 15 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): lava flow emission on southern slope (updated 22 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 22 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 22 Jan 2014)
Sinabung (Sumatra, Indonesia): growing lava dome, pyroclastic flows, occasional explosions (updated 22 Jan 2014)
Stromboli (Eolian Islands, Italy): continuing lava overflows (updated 3 Nov 2013)
Suwanose-jima (Tokara Islands, Japan): strombolian to weak vulcanian explosions (updated 22 Jan 2014)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 20 Nov 2013)
Zhupanovsky (Kamchatka, Russia): new explosive activity since 23 Oct (updated 6 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)
Kirishima (Kyushu): degassing, slightly increased seismic activity (updated 30 Jul 2012)
Kizimen (Kamchatka): degassing (updated 27 Dec 2013)
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)

Vorherige Nachrichten
Ash column rising from Shiveluch volcano this morning
Dienstag, Jan 21, 2014
Shiveluch (Kamchatka): A relatively large explosion occurred this morning at the volcano. An ash plume rose to estimated 28,000 ft (8 km) altitude and drifted WSW. Following the eruption, the volcano continued to produce intense degassing and minor ash venting, and glow from the active lava dome is visible on night-time webcam images. ... [mehr]
Steaming from Shiveluch's lava dome yesterday
Montag, Jan 20, 2014
Karymsky (Kamchatka): The volcano continues to produce sporadic strombolian and small vulcanian explosions. VAAC Tokyo reported a small ash plume yesterday at 10,000 ft (3 km) altitude. ... [mehr]
Visual and seismic data ("Letusan"=explosions, "Guguran"= pyroclastic flows) for the past weeks (VSI)
Sonntag, Jan 19, 2014
Sinabung (Sumatra, Indonesia): Activity at the volcano has been a bit lower during the past days, especially when compared to the first half of the past week. It is certainly too early to say whether this is a sign of a possible approaching end of the of the eruption or just a temporary or perhapy only apparent decrease. ... [mehr]

Freitag, Jan 17, 2014
Kilauea (Hawai'i): So much rain fell on Kilauea's eastern slope on Jan 12-13, it registered on the Pu'u 'O'o tilt signal before sinking deeper underground. ... [mehr]
Intense steaming from Sinabung this morning (VSI webcam)
Freitag, Jan 17, 2014
Sakurajima (Kyushu, Japan): Vulcanian-type explosions, which presented a spectacular show during much of the past year, are again becoming more frequent at the volcano, with now averaging one event per day. ... [mehr]

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