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Volcanic activity worldwide 7 Oct 2013: Fuego, Tangkubanparahu, Veniaminof, White Island, Copahue

Monday Oct 07, 2013 17:03 PM |

View of active vent area from the summit on 4 October 2013. Note how the active vent area in the centre has moved to the left and the pinky-red landslide debris in the foreground. (GeoNet)
View of active vent area from the summit on 4 October 2013. Note how the active vent area in the centre has moved to the left and the pinky-red landslide debris in the foreground. (GeoNet)
Current seismic recording from Veniaminof (VNHG station, AVO)
Current seismic recording from Veniaminof (VNHG station, AVO)
Seismic signal showing the increase of Fuego's activity this morning
Seismic signal showing the increase of Fuego's activity this morning
Steam (with ash?) plume from Copahue this morning (SERNAGEOMIN webcam)
Steam (with ash?) plume from Copahue this morning (SERNAGEOMIN webcam)
Tangkubanparahu (West Java): (6 Oct) Phreatic eruptions occurred from the crater on Saturday and Sunday morning (at 06.21 and 03:37 WIB, respectively). The eruptions lasted about 10 minutes and produced small ash plumes. Volcanologists measured strong tremor accompanying the eruptions.
Access to the crater (a popular tourist spot in the vicinity of the regional capital Bandung) was closed within a radius of 1.5 km.

White Island (New Zealand): The latest report of GNS/GeoNet comments on the recently increased tremor amplitude and mentions that a small steam eruption occurred on 4 October, but does not think a larger eruption is on its way.
This is the full report:
... [read more]

Veniaminof (Alaska Peninsula, USA): (6 Oct) The eruption of Veniaminof resumed this morning, the Alaska Volcano Observatory reports.
"The Aviation Color Code has been increased to Orange and the Volcano Alert Level to Watch. Seismic tremor increased over the past several hours, and highly elevated surface temperature were observed in satellite images this morning. Lava effusion has likely resumed, but no ash emissions have been observed in satellite images. Web camera images are obscured by clouds. This is a similar level of eruptive activity that first began in June 2013." (AVO)

Fuego (Guatemala): In the past hours, activity has increased and might be heading towards another paroxysm. The frequency and size of explosions rose significantly and has been creating an ash plume about 1 km high and drifting 8 miles south and southwest. Many of the explosions generate shock waves, rattling roofs and windows of houses in the villages Panimaché, Morelia and Panimaché II.
Constant degassing produces locomotive-like sounds and incandescent material ejected from strombolian activity reaches 125-200 m height and produces avalanches on the upper slopes. The lava effusion increased as well starting at 05:15 local time, and the flow towards Trinidad canyon reaches now 400 meters in length, generating avalanches. A second flow has started to move towards Ceniza canyon and avalanches from it reach 800 m length.

Copahue (Chile/Argentina): Sporadic weak ash venting continues to be observed from time to time.
The local press has commented on this, citing volcanologist Alberto Caselli that there is no associated change in seismic activity suggesting an impending new eruptive phase, but that the emissions are caused by decompression gas/steam release from a still hot, degassing magma body inside the inner conduits of the volcano.

Volcano Activity Summary for 7 Oct 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 16 Sep 2013)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 3 Oct 2013)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 5 Oct 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 5 Oct 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 flow on upper southern flank, small to moderate explosions (updated 7 Oct 2013)
Grozny (Iturup Island): fumarolic activity (updated 3 Apr 2013)
Jebel Zubair (Red Sea): submarine eruption started 28 Sep 2013 (updated 2 Oct 2013)
Karkar (Northeast of New Guinea): possible ash eruption on 1 February (updated 15 Mar 2013)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 1 Oct 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 1 Oct 2013)
Klyuchevskoy (Kamchatka): strombolian activity at summit crater (updated 1 Oct 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 5 Oct 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 1 Oct 2013)
Rausu (Hokkaido)
Reventador (Ecuador): ash explosions, occasional pyroclastic flows (updated 5 Oct 2013)
Sakurajima (Kyushu, Japan): constant ash emissions and strong explosions (updated 4 Oct 2013)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 5 Oct 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 1 Oct 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 12 Sep 2013)
Telica (Nicaragua): normal (low) seismic activity (updated 26 Sep 2013)
Tinakula (Santa Cruz Islands, Solomon Islands): increased activity at the volcano (updated 8 Feb 2013)
Ulawun (New Britain, Papua New Guinea): steaming, degassing (updated 1 Oct 2013)
Veniaminof (Alaska Peninsula, USA): effusion of lava flows (updated 6 Oct 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 10 Sep 2013)

Eruption warning / minor activity:

Bezymianny (Central Kamchatka Depression): slow lava flow extrusion from dome (updated 1 Oct 2013)
Dieng (Central Java): increased degassing (updated 28 Mar 2013)
Etna (Sicily, Italy): sporadic ash emissions from New SE crater (updated 6 Oct 2013)
Galeras (Colombia): sporadic ash emissions (updated 25 Jul 2013)
Gamkonora (Halmahera): seismic swam, minor ash emissions (updated 27 May 2013)
Heard (Australia, Southern Indian Ocean): likely lava lake in summit crater (updated 3 Oct 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)
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)
Langila (New Britain, Papua New Guinea): occasional ash explosions (updated 11 Feb 2013)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 24 Sep 2013)
Manam (Papua New Guinea): occasional explosions (updated 12 Sep 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 3 Oct 2013)
Nevado del Ruiz (Colombia): seismic unrest (updated 14 Sep 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 5 Oct 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)
Tangkubanparahu (West Java): occasional phreatic explosions (updated 6 Oct 2013)
Turrialba (Costa Rica): ash venting, strong degassing (updated 24 Jul 2013)
Ubinas (Peru): occasional phreatic explosions (updated 20 Sep 2013)

Previous news
Ash emission from Etna's New SE crater this morning
Sunday, Oct 06, 2013
Etna (Sicily, Italy): The New SE crater has resumed weak, sporadic strombolian activity with small ash emissions. This goes along with an increase of the tremor signal today. The situation is certainly worth following! ... [more]
The Húsavík-Flatey (HFF)  transform faut and location of earthquakes in the TFZ (IMO)
Saturday, Oct 05, 2013
Tjörnes Fracture Zone (North of Iceland): The earthquake swarm has decreased in intensity. At least some scientists believe that the cause has been a magmatic intrusion in Iceland's northern rift zone that activated the Húsavík-Flatey (HFF) transform fault at the southern limit of the TFZ where the earthquakes were concentrated. ... [more]
Explosion from Sakurajima this morning (MBC webcam, from East)
Friday, Oct 04, 2013
Sakurajima (Kyushu, Japan): A moderately large explosion occurred this morning at 12:03 local time, possibly generating a pyroclastic flow to the SW side of the Showa crater. An ash plume rose to 13,000 ft (4 km) altitude and drifted over the southern part of Kagoshima city, where ash fall occurred. ... [more]
Map of recent quakes at El Hierro
Thursday, Oct 03, 2013
El Hierro (Canary Islands, Spain): A small earthquake swarm under the center of the island, at about 12 km depth, occurred on 30 Sep. ... [more]
MODIS / Terra satellite image 1 Oct showing the steam plume from the eruption
Wednesday, Oct 02, 2013
Lewotobi (Flores): Following an increase in seismic activity recorded since 28 September, VSI raised the alert level to 2 ("Waspada","watch") on a scale of 1-4. No changes in surface activity, degassing from fumarole vents, has been noted. ... [more]

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