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Volcanic activity worldwide 28 Jun 2015: Dukono volcano, Reventador, Raung, Ubinas, Sinabung, Sangea...

June 29, 2015 Sangeang Api (Indonesia): Satellite data suggest that a new lava flow is active traveling from the summit crater of Doro Api through a narrow ravine on the SE side of the volcano.

Volcanic activity worldwide 28 Jun 2015: Dukono volcano, Reventador, Raung, Ubinas, Sinabung, Sangea...

Sunday Jun 28, 2015 11:56 AM |

 

Heat signal from Raung volcano during the past year (MIROVA)
Heat signal from Raung volcano during the past year (MIROVA)
Heat signal from Sangeang Api volcano during the past year (MIROVA)
Heat signal from Sangeang Api volcano during the past year (MIROVA)
Map of lava flows during the current eruption (IGPEN)
Map of lava flows during the current eruption (IGPEN)
Active lava flow on Reventador today, seen on the thermal webcam
Active lava flow on Reventador today, seen on the thermal webcam

Manam (Papua New Guinea): According to Darwin VAAC, an ash plume from the volcano rose 8,000 ft and extended 70 km to the NE today. The volcano seems to be in a phase of intermittent mild explosive activity. 

Raung (East Java): Eruptive activity continues in the volcano's summit crater. Heat emission remains intense, suggesting the presence of lava (flow?), likely in combination with more or less intense strombolian activity. 
An ash plume was seen on satellite data last Friday. (VAAC Darwin) 

Sinabung (Sumatra, Indonesia): Activity remains intense. The volcano continues to extrude viscous lava that regularly generates glowing avalanches and pyroclastic flows. Associated ash plumes have been rising several kilometers. The volcano remains at highest alert level (4 out of 4).

Sangeang Api (Indonesia): Satellite data suggest that a new lava flow is active traveling from the summit crater of Doro Api through a narrow ravine on the SE side of the volcano. 
It is possible that effusive activity which began in early June last year in reality never ceased, but increased again now. The volcano began erupting with a large explosion on 30 May and several smaller ones in early June last year. This was followed by the effusion of a flow that quickly traveled down the SE slope of the volcano. Thermal signals remained intense until November 2014, then decreased, but did not disappear, but clearly picked up again late April this year, indicating the presence of active lava always in the same path. 
The current length of the flow is probably around 1.5 km. 

Dukono (Halmahera): Ash emissions at variying intensity continue from the volcano. Darwin VAAC reported ah ash plume that rose to 6,000 ft (1.8 km) and extended 50 km NE yesterday. 

Wolf (Galápagos Islands, Ecuador): The eruption in the Galapagos islands continues strongly from the effusive vent inside the caldera, near its southern rim. 
detailed report by the Ecuadorian Geophysical Institute confirms that the current intra-caldera activity must have started between including 13-16 June, likely from a new fissure vent near or on the southern caldera rim. Lava flows from this vent have been covering the 1982 lavas in the the S and SE part of the caldera floor. 
The lava flows from the first phase of the eruption, emitted by an eruptive fissure that ran parallel and just outside the SE and E caldera rim, seem to have stopped being alimented at around the same time the new actity began inside the caldera. 

Reventador (Ecuador): Activity at the volcano has been relatively intense during the past days with at least one active lava flow, approx. 1-1.5 km long, traveling down the SE side of the summit cone. 
After the previous flow from 19 May had stopped, probably in early-mid June, a new surge started on 23 June and is still continuing. 

Ubinas (Peru): Intermittent explosive eruptions continue. An explosion on Friday 26 June at 14:58 local time produced an plume that rose 2.8 km and caused light ash fall in nearby areas a local newspaper reported. 
Another smaller explosion was reported yesterday evening (VAAC Washington). 

Volcano Activity Summary for 28 Jun 2015:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 24 May 2015)
Aso (Kyushu): intense strombolian activity from main vent in Nakadake crater (updated 22 May 2015)
Bagana (Bougainville Island, Papua New Guinea): ash emissions, lava dome growth (updated 5 Jun 2015)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 22 May 2015)
Calbuco (Southern Chile and Argentina): steaming (updated 30 Apr 2015)
Colima (Western Mexico): Irregular small to moderately large explosions (updated 3 Jun 2015)
Copahue (Chile/Argentina): ash venting (updated 4 Dec 2014)
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): intermittent strombolian explosions (updated 22 Jun 2015)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 14 Nov 2014)
Karangetang (Siau Island, Sangihe Islands, Indonesia): lava flows, weak explosive activity at summit crater (updated 11 Jun 2015)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 10 Jun 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): occasional ash emissions (updated 28 Jun 2015)
Mount Olympus (Mars)
Nishino-shima (Volcano Islands, Japan): growing island (updated 23 Jun 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): eruption ended 30 May 2015 (updated 22 May 2015)
Poas (Costa Rica): phreatic explosions (updated 14 Oct 2014)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 13 Apr 2015)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): lava fountains, ash emissions from Tavurvur cone (updated 12 Sep 2014)
Raung (East Java): mild strombolian activity in summit crater (updated 28 Jun 2015)
Reventador (Ecuador): lava flow on SW flank (updated 28 Jun 2015)
Sakurajima (Kyushu, Japan): ash venting, intermittent explosions (updated 22 Jun 2015)
Sangay (Ecuador): likely strombolian eruptions at summit crater (updated 13 Mar 2015)
Santiaguito (Guatemala): small explosions from the Caliente dome and active lava flow (updated 3 Feb 2015)
Semeru (East Java, Indonesia): growing lava dome, lava flow, strombolian activity (updated 16 Jun 2015)
Shiveluch (Kamchatka): growing lava dome (updated 24 May 2015)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 28 Jun 2015)
Soputan (North Sulawesi, Indonesia): active viscous lava flow, explosions, rockfalls, pyroclastic flows (updated 9 Mar 2015)
Stromboli (Eolian Islands, Italy): weak strombolian activity at summit vents (updated 16 Apr 2015)
Suwanose-jima (Ryukyu Islands): strombolian activity (updated 25 Apr 2015)
Telica (Nicaragua): sporadic ash emissions and explosions (updated 28 May 2015)
Tungurahua (Ecuador): volcanic unrest, ash emissions, degassing (updated 3 May 2015)
Turrialba (Costa Rica): ash emissions, weak strombolian activity (updated 20 May 2015)
Ubinas (Peru): intermittent ash emissions (updated 28 Jun 2015)
Villarrica (Central Chile): small lava lake in summit crater (updated 12 May 2015)
Wolf (Galápagos Islands, Ecuador): large explosive-effusive eruption since 25 May 2015 (updated 25 May 2015)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)

Eruption warning / minor activity:

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 6 Jun 2015)
Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Bulusan (Luzon Island, Philippines): occasional phreatic explosions (updated 16 Jun 2015)
Cleveland (Aleutian Islands, Alaska): growth of a small lava dome, ash emissions (updated 18 Jun 2015)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 28 Jun 2015)
Etna (Sicily, Italy): sporadic weak ash emissions from New SE crater (updated 19 Apr 2014)
Heard (Australia, Southern Indian Ocean): possibly lava lake in summit crater (updated 5 Dec 2014)
Kavachi (Solomon Islands): no eruption since 2007 (updated 16 Jun 2014)
Kerinci (Sumatra): seismic unrest, steam emissions (updated 5 Jun 2013)
Kirishima (Kyushu): degassing, alert lowered (updated 25 Oct 2014)
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)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 22 May 2015)
Lopevi (Vanuatu): eruption warning (updated 16 Dec 2014)
Mayon (Luzon Island): steaming (updated 18 Dec 2014)
Nevado del Ruiz (Colombia): intermittent ash emissions, seismic unrest (updated 28 May 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 22 Jun 2015)
Papandayan (West Java): steaming (updated 6 May 2013)
Pavlof (Alaska Peninsula, USA): steaming, elevated seismic activity (updated 22 Dec 2014)
Rasshua (Central Kuriles)
Rincón de la Vieja (Costa Rica): phreatic explosions from crater lake (updated 21 Sep 2014)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): possible ash emission on 11 April (updated 9 Mar 2015)
San Miguel (El Salvador): elevated seismic activity, pulsating gas emissions (updated 28 Jan 2015)
Sangeang Api (Indonesia): lava flow on SE flank (updated 28 Jun 2015)
Shishaldin (United States, Aleutian Islands): mild explosive activity, intermittent more intense phases (updated 3 Apr 2015)
Slamet (Central Java): steam emissions (updated 12 Jan 2015)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)
Zhupanovsky (Kamchatka, Russia): intermittent ash emissions (updated 22 Jun 2015)

 

 
Previous news
Landsat 8 infrared image of Nishinoshima on 21 June 2015 showing the active areas (vent and lava delta)
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Tuesday, Jun 23, 2015
Nishino-shima (Volcano Islands, Japan): The eruption on the island continues with apparently relatively steady lava effusion that feeds active flows reaching and enlarging the SE corner of the island, which has now 2.7 square kilometer of surface. ... [more]
Steam and ash plume from Asama volcano
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Monday, Jun 22, 2015
Zhupanovsky (Kamchatka, Russia): A small ash emission from the volcano was reported on Saturday. Based on satellite imagery, an ash plume rose to 24,000 ft (7.2 km) altitude and drifted north (Tokyo VAAC). ... [more]
Thursday, Jun 18, 2015
Cleveland (Aleutian Islands, Alaska): The Alaska Volcano Observatory detected that a new (so far minor) eruptive episode has started at the volcano recently: ... [more]
Eruption from Semeru on 11 June 2015 (photo: Aris Yanto)
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Tuesday, Jun 16, 2015
Asama (Honshu): (16 Jun) A small eruption occurred at the volcano this morning around 9am local time. ... [more]
Pyroclastic flow at Sinabung yesterday (image: Sadrah Peranginangin / facebook)
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Sunday, Jun 14, 2015
Sinabung (Sumatra, Indonesia): (14 Jun) Pyroclastic flows caused by collapse of parts of the viscous dome on the volcano's summit have started to be more frequent and larger again. Yesterday, about ten flows were generated that descended both through the SE and the ENE channel, reaching up to 3 km distance. ... [more]
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