Friday, November 6, 2015

[Geology2] Volcanic activity worldwide 6 Nov 2015



Volcanic activity worldwide 6 Nov 2015

Friday Nov 06, 2015

Ash plume over Lombok island this morning (NASA / MODIS)
Ash plume over Lombok island this morning (NASA / MODIS)
Explosion at Ubinas volcano last evening
Explosion at Ubinas volcano last evening
Sakurajima (Kyushu, Japan): (6 Nov) Activity remains low. Only small-scale explosions occurred during the past weeks from the Showa crater. The Alert Level remains at 3 (out of 5).

Rinjani (Lombok): (6 Nov) The eruption of the volcano continues to produce intense ash emissions. However, to the great relief of travelers to and from Bali, the strong easterly winds that had swept the plume over Bali during the past days, forcing the Denpasar International airport to shut down, have ceased and given way to weak southerly and northerly winds, thus allowing the airport to reopen.
Some Australian airlines have been adding extra flights to Bali to help the many stranded travelers return home.
On this morning's satellite image, the ash plume can be seen hovering in N-S direction across Lombok island, while Bali was free of ash. However, easterly winds are likely to pick up again soon, which could cause significant flight disruptions again.

Kilauea (Hawai'i): (6 Nov) No significant changes have occurred at the volcano recently. HVO reported that seismicity beneath Kilauea's summit, upper East Rift Zone, and Southwest Rift Zone was at background levels during 28 October-3 November.
The lava lake continued to circulate and spatter in the Overlook vent. The June 27th NE-trending lava flow continued to be active within 2.2-6.3 km NE of Pu'u 'O'o Crater. (Smithsonian / USGS Weekly Volcanic Activity Report 28 October-3 November 2015)

Shishaldin (Aleutian Islands, Alaska): (6 Nov) Seismicity at Shishaldin continued to be slightly elevated over background levels during 28 October-2 November, indicating that low-level eruptive activity confined to the summit crater continued.
The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch. (Smithsonian / USGS Weekly Volcanic Activity Report 28 October-3 November 2015)

Santiaguito (Guatemala): (6 Nov) Heavy rainfalls caused several lahars during the past days. The volcano continues to produce occasional small to moderate explosions from the active Caliente dome.
from the latest VOLCANO: Smithsonian / USGS Weekly Volcanic Activity Report 28 October-3 November 2015:
... [read more]

Pacaya (Guatemala): (6 Nov) Weak, deep-seated explosive activity continues inside the Mackenney crater. INSIVUMEH reports moderate degassing creating a plume of 150-200 m height with pulsating emissions of bluish gas. At night, weak glow is visible from the crater.

Fuego (Guatemala): (6 Nov) The volcano has been at average activity levels during the past days, with intermittent weak to moderate, sometimes stronger strombolian-type explosions (every 1-3 hours on average), sometimes accompanied by shock waves.
Ash plumes rose 500-800 m above the crater, incandescent rockfalls occurred during the stronger eruptions and light ash fall was noted in nearby areas.

Ubinas (Peru): (6 Nov) A small explosive eruption occurred last evening, producing an ash plume that rose approx. 1 km above the crater and quickly dissipated. Seismic activity at the volcano remains low, according to the corresponding bulletin of Buenos Aires VAAC.
...6 Nov:
Activity at the volcano remains low, with weak emissions of gas and steam, sometimes mixed with ash.
Seismic activity fluctuated at low levels during the past week.

Heard (Australia, Southern Indian Ocean): (6 Nov) A plume from Heard was visible in a satellite image drifting SSW on 30 October, the Smithsonian / USGS Weekly Volcanic Activity Report 28 October-3 November 2015 mentioned. This suggests some sort of activity still going on from the remote volcano in the Kerguelen Islands.

Volcano Activity Summary for 6 Nov 2015:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 24 May 2015)
Aso (Kyushu): steaming, occasional phreatomagmatic or strombolian explosions (updated 26 Oct 2015)
Bagana (Bougainville Island, Papua New Guinea): mild ash emissions (updated 26 Oct 2015)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 26 Oct 2015)
Colima (Western Mexico): intermittent explosions from summit crater (updated 20 Oct 2015)
Cotopaxi (Ecuador): vulcanian explosions (updated 16 Aug 2015)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 2 Nov 2015)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
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 fountaining, strong strombolian activity, lava flows (updated 6 Nov 2015)
Gamalama (Halmahera): new eruption on 18 Dec 2014 (updated 8 Sep 2015)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Karangetang (Siau Island, Sangihe Islands, Indonesia): lava flow, incandescent avalanches (updated 21 Oct 2015)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 2 Nov 2015)
Kilauea (Hawai'i): new lava flow from vents on NE flank of Pu'u 'O'o (updated 28 Apr 2015)
Kliuchevskoi (Kamchatka): ash emissions, weak strombolian activity (updated 11 May 2015)
Manam (Papua New Guinea): large explosion on 31 July 2015 (updated 31 Aug 2015)
Nevado del Ruiz (Colombia): intermittent ash emissions, strong degassing (updated 21 Sep 2015)
Nishino-shima (Volcano Islands, Japan): growing island (updated 21 Oct 2015)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 26 Feb 2014)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Piton de la Fournaise (La Réunion): lava effusion from new vent near Piton Rivals (updated 30 Oct 2015)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 18 Aug 2015)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): lava fountains, ash emissions from Tavurvur cone (updated 12 Sep 2014)
Reventador (Ecuador): lava flow on SW flank (updated 17 Aug 2015)
Rinjani (Lombok): lava flow effusion and ash emissions from new vent on Barujari cone (updated 6 Nov 2015)
Sakurajima (Kyushu, Japan): seismic swarm, eruption warning (updated 6 Nov 2015)
Sangay (Ecuador): likely strombolian eruptions at summit crater (updated 13 Mar 2015)
Santiaguito (Guatemala): slowly growing lava dome, ash explosions, viscous lava flow extrusion, occasional pyroclastic flows (updated 6 Nov 2015)
Semeru (East Java, Indonesia): growing lava dome, lava flow, strombolian activity (updated 16 Jun 2015)
Shiveluch (Kamchatka): growing lava dome (updated 30 Oct 2015)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 2 Nov 2015)
Stromboli (Eolian Islands, Italy): weak strombolian activity at summit vents (updated 16 Apr 2015)
Suwanose-jima (Ryukyu Islands): strombolian explosions in Ontake crater (updated 1 Oct 2015)
Telica (Nicaragua): intermittent phreatic explosions (updated 27 Sep 2015)
Tungurahua (Ecuador): intermittent small ash emissions, small to moderate explosions (updated 26 Oct 2015)
Turrialba (Costa Rica): small to moderate ash emissions, intense degassing (updated 26 Oct 2015)
Villarrica (Central Chile): small lava lake in summit crater (updated 12 May 2015)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)

Eruption warning / minor activity:

Alaid (Northern Kuriles): probable strombolian activity in summit crater (updated 8 Oct 2015)
Asama (Honshu): occasional small explosions since 16 June 2015 (updated 22 Jun 2015)
Augustine (Cook Inlet (SW Alaska))
Barren Island (Indian Ocean): weak thermal hot spot (updated 19 Aug 2015)
Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Bulusan (Luzon Island, Philippines): occasional phreatic explosions (updated 16 Jun 2015)
Chirinkotan (Northern Kuriles, Russia): sporadic ash emissions (updated 28 Jul 2015)
Copahue (Chile/Argentina): intermittent ash emissions, strong degassing, crater incandescence (updated 18 Oct 2015)
Etna (Sicily, Italy): strombolian activity from Voragine crater (updated 19 Apr 2014)
Heard (Australia, Southern Indian Ocean): possibly lava lake in summit crater (updated 6 Nov 2015)
Kavachi (Solomon Islands): no eruption since 2007 (updated 16 Jun 2014)
Kerinci (Sumatra): seismic unrest, steam emissions (updated 5 Jun 2013)
Kick 'em Jenny (West Indies, Grenada): volcanic unrest, eruption warning (updated 24 Jul 2015)
Krakatau (Sunda Strait, Indonesia): steaming, seismic unrest (updated 31 Mar 2014)
Kuchinoerabu-jima (Ryukyu Islands): large explosive eruption on 29 May 2015 (updated 27 Mar 2015)
Lascar (Northern Chile): sudden explosion on 30 Oct 2015 (updated 31 Oct 2015)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 31 Aug 2015)
Lopevi (Vanuatu): eruption warning (updated 16 Dec 2014)
Mayon (Luzon Island, Philippines): steaming (updated 18 Dec 2014)
Merapi (Central Java, Indonesia): sporadic phreatic explosions (updated 21 Aug 2015)
Michael (United Kingdom, South Sandwich Is): unspecified activity detected as hot spot on satellite data (updated 3 Oct 2015)
Nyamuragira (DRCongo): active lava lake (updated 29 Nov 2014)
Ontake-san (Honshu): steaming, low seismic activity (updated 18 Dec 2014)
Pacaya (Guatemala): weak strombolian activity in summit crater (updated 6 Nov 2015)
Papandayan (West Java): steaming (updated 6 May 2013)
Pavlof (Alaska Peninsula, USA): steaming, elevated seismic activity (updated 22 Dec 2014)
Poas (Costa Rica): phreatic explosions (updated 14 Oct 2014)
Rasshua (Central Kuriles)
Raung (East Java): intra-caldera eruption with lava flow and strombolian activity (updated 27 Aug 2015)
Rincón de la Vieja (Costa Rica): phreatic explosions from crater lake (updated 21 Sep 2014)
Sabancaya (Peru): steaming, elevated seismic activity (updated 11 Oct 2015)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): possible ash emission on 11 April (updated 9 Mar 2015)
San Miguel (El Salvador): degassing, seismic unrest, sporadic ash emissions (updated 28 Jan 2015)
Sangeang Api (Indonesia): steaming, possibly weak lava extrusion at summit (updated 24 Aug 2015)
Shishaldin (Aleutian Islands, Alaska): mild explosive activity, intermittent more intense phases (updated 6 Nov 2015)
Sirung (Pantar Island, Indonesia ): degassing (updated 10 Jul 2015)
Slamet (Central Java): steam emissions (updated 12 Jan 2015)
Soputan (North Sulawesi, Indonesia): seismic unrest (updated 26 Oct 2015)
Ubinas (Peru): occasional explosions (updated 6 Nov 2015)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)
Zhupanovsky (Kamchatka, Russia): intermittent ash emissions (updated 22 Jun 2015)

http://www.volcanodiscovery.com/volcano-activity/news/55235/Volcanic-activity-worldwide-6-Nov-2015-Santiaguito-volcano-Pacaya-Fuego-Ubinas-Rinjani-Sakuraj.html

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Posted by: Lin Kerns <linkerns@gmail.com>



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