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Volcanic activity worldwide 6 Sep 2013: Ubinas, Sakurajima, Rabaul (Tavurvur), Pacaya, Fuego, Karyms...

Fri, 6 Sep 2013, 13:54
13:54 PM |
The cone of Klyuchevskoy volcano this morning (note the gas plume from the lava flow)
The cone of Klyuchevskoy volcano this morning (note the gas plume from the lava flow)
Small ash emission from Shiveluch volcano this morning (KVERT webcam)
Small ash emission from Shiveluch volcano this morning (KVERT webcam)
Ash plume from Sakurajima this morning (Tarumizu webcam)
Ash plume from Sakurajima this morning (Tarumizu webcam)
SO2 plume from Rabaul volcano today (NOAA)
SO2 plume from Rabaul volcano today (NOAA)
Current seismic recording from Veniaminof (VNHG station, AVO)
Current seismic recording from Veniaminof (VNHG station, AVO)
Current webcam view of Popocatépetl
Current webcam view of Popocatépetl
Depth vs time of earthquakes at Momotombo volcano
Depth vs time of earthquakes at Momotombo volcano
Ash explosion from Ubinas yesterday (INGEMMET)
Ash explosion from Ubinas yesterday (INGEMMET)
Etna (Sicily, Italy): Since a few days ago, the New SE crater has been producing weak ash emissions occasionally. Whether this is the precursor to more vigorous activity and when this will occur, is difficult to say at the moment, but it is a sign that the volcano is waking up from the slumber it has been in during the past 4 months.

Gorely (Southern Kamchatka): No significant changes have occurred over the past weeks. KEVRT continues to record moderate seismic activity caused by degassing and internal fluid movements.

Kliuchevskoi (Kamchatka): The lava flow on the WSW upper flank continues to be active and can be seen on webcam images. Strong seismic activity reported by KVERT.

Kizimen (Kamchatka): The volcano continues to extrude a viscous lava flow from the summit vent, producing hot avalanches on the western and eastern flanks and strong degassing. KVERT reports moderate seismic activity.

Karymsky (Kamchatka): According to KVERT, weak ash explosions probably continue to occur from time to time. Seismic activity is moderate.

Shiveluch (Kamchatka): KVERT reports no changes in activity, which is currently relatively low. Accompanied by moderate seismic activity, a viscous lava dome continues to grow and produces small incandescent rockfalls and occasional ash emissions such as on the attached webcam picture this morning. Glow can be seen at night.


Tolbachik (Kamchatka): The eruption is probably ending. KVERT reported only weak seismicity and incandescence, accompanied by moderate steaming/degassing, and a small remaining thermal anomaly on satellite data.

Bezymianny (Central Kamchatka Depression): Weak effusive activity continues, evidenced by steaming/degassing and a thermal anomaly at the lava dome visible on satellite data. KVERT has no seismic data, because the ongoing eruption at nearby Klyuchevskoy obscures the seismic activity from Bezymianny.

Sakurajima (Kyushu, Japan): Elevated activity continues at the volcano which produces frequent and relatively strong vulcanian explosions and ash emissions. This morning, an explosion produced an ash plume rising to 15,000 ft (4.5 km) altitude, visible in the following video starting 07:18 UTC:


Suwanose-jima (Ryukyu Islands): Eruptions continue on the remote island. An explosion this morning produced an ash plume rising to 7,000 ft (2.1 km) altitude (VAAC Tokyo).

Rabaul (Tavurvur) (New Britain, Papua New Guinea): The activity at Tavurvur has increased since the second half of August, a recent report by ECHO (European Commission department of Humanitarian Aid) mentions.
Ash fall from Tavurvur forced the suspension of outpatient services at Nonga base hospital in Rabaul on 2 Sep. It is expected that more than 3,000 people are affected and in need of clean drinking water.

Batu Tara (Sunda Islands, Indonesia): Explosions producing ash plumes large enough to show up on satellite data have become more frequent over the past week. An eruption yesterday produced a plume rising to 7,000 ft (2.1 km) altitude, VAAC Darwin reported.

Veniaminof (Alaska Peninsula, USA): Activity has decreased compared to the strong episode between 30 August and 2 September. Continuous seismic tremor suggests that lava effusion, accompanied by minor ash emission, continues.

Popocatépetl (Central Mexico): Activity continues at generally low levels. The rate of small emissions of steam and gas has risen to more than 5 per hour during yesterday, and a number of small volcanic-tectonic quakes and episodes of tremor were recorded.
At night, incandescence is visible at the volcano's summit, indicating that magma continues to arrive there.

Pacaya (Guatemala): Mild strombolian activity continues from the Mackenney crater. At night, incandescence can be seen.

Fuego (Guatemala): After the paroxysm on 2 Sep, the lava flow effusion has stopped and the volcano has returned to its typical activity with occasional explosions from the summit vent. INSIVUMEH reported 6 moderate explosions yesterday with ash plumes rising up to 800 m and drifting for 10-12 km before dispersing.a.

Momotombo (Nicaragua): The intense swarm of shallow earthquakes under the volcano's SE flank seems to have more or less ended. If it was caused by an intrusion of magma, it has (as in most cases) not lead to an eruption although a second swarm could restart at any time.
Unfortunately, INETER has not reported on this activity so far.

Ubinas (Peru): New eruptions occurred at the volcano. It seems more and more likely that the phreatic explosions are a result of new magma rising from depth, and the volcano could be heading towards more sustained and possibly larger magmatic activity in the near future.
An explosion yesterday at 16:22 (local time) produced an impressive ash plume of 3 km height, followed by a smaller one at 17:48 with an ash plume of 500 m height. These have so far been the largest in the current phase of activity.
... [read more]

Volcano Activity Summary for 6 Sep 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 30 Aug 2013)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 6 Sep 2013)
Chirinkotan (Northern Kuriles): unspecified activity - possibly lava flows (updated 2 Sep 2013)
Cleveland (Aleutian Islands, Alaska): continuous small eruptions (updated 6 May 2013)
Colima (Western Mexico): lava flow on upper eastern flank (updated 19 Jul 2013)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 3 Sep 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)
Fuego (Guatemala): lava emission, pyroclastic flows on 2 Sep, strombolian explosions (updated 6 Sep 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): 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)
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): growing lava dome and incandescent rock avalanches (updated 6 Sep 2013)
Kliuchevskoi (Kamchatka): strombolian activity at summit crater (updated 6 Sep 2013)
Lokon-Empung (North Sulawesi, Indonesia): steaming, degassing, occasional ash explosions (updated 25 Jul 2013)
Manam (Papua New Guinea): occasional explosions (updated 30 Aug 2013)
Marapi (Western Sumatra, Indonesia): occasional weak 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): strombolian activity and lava flow (updated 6 Sep 2013)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 12 Aug 2013)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): explosions and ash emissions (updated 6 Sep 2013)
Reventador (Ecuador): lava flow on upper southern flank, numerous small to moderate explosions (updated 17 Aug 2013)
Sakurajima (Kyushu, Japan): constant ash emissions and strong explosions (updated 6 Sep 2013)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 30 Aug 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 6 Sep 2013)
Stromboli (Eolian Islands, Italy): continuing lava overflows (updated 25 Jul 2013)
Suwanose-jima (Ryukyu Islands): Mt Ontake volcano of Suwanose-jima Island, Japan (updated 6 Sep 2013)
Tinakula (Santa Cruz Islands, Solomon Islands): increased activity at the volcano (updated 8 Feb 2013)
Veniaminof (Alaska Peninsula, USA): effusion of lava flows (updated 6 Sep 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 14 Aug 2013)

Eruption warning / minor activity:

Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 26 Aug 2013)
Bezymianny (Central Kamchatka Depression): slow lava flow extrusion from dome (updated 6 Sep 2013)
Copahue (Chile/Argentina): degassing, weak sporadic ash emissions (updated 16 Aug 2013)
Dieng (Central Java): increased degassing (updated 28 Mar 2013)
Etna (Sicily, Italy): steaming, degassing (updated 4 Sep 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)
Karangetang (Siau Island, Sangihe Islands, Indonesia): lava extrusion at summit crater, strombolian activity, glowing avalanches (updated 4 Sep 2013)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 6 Sep 2013)
Kerinci (Sumatra): occasional ash explosions (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, slightly increased seismic activity (updated 30 Jul 2012)
Krakatau (Sunda Strait, Indonesia): occasional explosions (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): moderate gas and ash plume on 22 july (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): steam/gas/ash emissions (updated 6 Sep 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)
Sangay (Ecuador): no recent explosions reported (updated 24 May 2013)
Tolbachik (Kamchatka): effusion of fluid lava flows (updated 6 Sep 2013)
Tungurahua (Ecuador): degassing, earthquake swarm and inflation (updated 14 Aug 2013)
Turrialba (Costa Rica): ash venting, strong degassing (updated 24 Jul 2013)
Ubinas (Peru): occasional phreatic explosions (updated 6 Sep 2013)
Ulawun (New Britain, Papua New Guinea): steaming, degassing (updated 5 Aug 2013)
White Island (New Zealand): strong degassing, volcanic tremor (updated 20 Aug 2013)

Previous news
Thu, 5 Sep 2013, 17:04
Vulcanian explosion from Sakurajima this morning (JMA)
Sakurajima (Kyushu, Japan): (4 Sep) A moderately large vulcanian explosion occurred this morning, producing significant fallout of lapilli and small bombs in several kilometers distance. Cars parked at the Arimura Lava observatory observation point to the south of the volcano were damages and windshields broken, at a distance of about 4 km. There are no reports of injuries to people. ... read all
Wed, 4 Sep 2013, 11:54
MODIS hot spot data (past 7 days) for Karangetang volcano (ModVolc, Univ. Hawaii)
Etna (Sicily, Italy): A small ash emission was reported to have occurred yesterday morning from the New SE crater. This would likely be the first eruptive activity since the spectacular series of paroxysms in the first months of the year. ... read all
Tue, 3 Sep 2013, 17:04
Brief clear view of Veniaminof with visible plume last night (Perryville webcam, FAA)
Kizimen (Kamchatka): No significant changes have occurred. The lava dome at the summit continues to grow and produce occasional small to moderate glowing avalanches. KVERT reports moderate seismic activity. ... read all
Mon, 2 Sep 2013, 17:04
Tolbachik (Kamchatka): Although believed to have more or less stopped a week ago, it seems that weak eruptive has continued and regained some strength again now. Weak tremor has reappeared and incandescence could be seen again at the active vent at Tolbachinsky Dol at night. Tourists could observe strombolian activity and effusion of lava into the tube system on 30 August. ... read all
Sun, 1 Sep 2013, 17:04
Guntur (West Java): The alert level was again raised to level 2 on a scale of 0-4 (Waspada, "watch") following an increase in seismic activity observed since 15 August. ... read all

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