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Volcanic activity worldwide 22 Jun 2015: Pacaya volcano, Fuego, Bulusan, Raung, Ubinas, Sinabung, Sa...

Monday Jun 22, 2015 16:44 PM |

Steam and ash plume from Asama volcano
Steam and ash plume from Asama volcano
MIROVA thermal signals of Manam volcano
MIROVA thermal signals of Manam volcano
Thermal signal from Raung volcano (MIROVA)
Thermal signal from Raung volcano (MIROVA)
Thermal signal from Wolf volcano (MIROVA)
Thermal signal from Wolf volcano (MIROVA)
Tremor amplitude of Pacaya volcano during the current month
Strong strombolian explosion at Fuego this morning
Strong strombolian explosion at Fuego this morning
Eruption of Ubinas volcano today
Eruption of Ubinas volcano today
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).

Asama (Honshu): Weak activity continues from the volcano's summit crater. Small ash emissions, intense degassing as well as weak incandescence from the volcano's crater have been observed during the past days.

Kuchinoerabu-jima (Ryukyu Islands): Another eruption occurred from the Shindake crater shortly after noon on 18 June. It was not directly observed due to cloud cover and the island being evacuated, but sent out a clear explosion signal picked up on seismic stations.
Japan maintains the highest alert level (5 out of 5) and the evacuated island inhabitants are currently not allowed to return to their homes.

Sakurajima (Kyushu, Japan): The volcano remains highly active, producing regularly 5-10 or even more vulanian-type explosions on a daily basis. A few hours ago, JMA recorded the 650th this year alone.

Bulusan (Luzon Island, Philippines): Another eruption, moderately strong, occurred 14:55 last Friday, producing an ash column that rose 1.5 km. The eruption was not directly visible, only parts of the ash plume could be spotted, but could be heard as rumbing in Monbon village.
... [read more]

Manam (Papua New Guinea): An ash plume rising to estimated 10,000 ft and extending 35 km NW was reported yesterday by Darwin VAAC.
Manam has been having intermittent periods with mostly minor eruptive activity for several years. A phase of increased explosive activity has been going on since late March this year.

Raung (East Java): A strong thermal signal visible on satellite data suggests that eruptive activity in the volcano's summit crater has again picked up during the past two days.
During late 2014 and early 2015, the volcano had been in strombolian activity and effused a lava flow inside its vast summit caldera. This activity had gradually decreased during the past months, but might now have resumed.

Sinabung (Sumatra, Indonesia): The eruption continues with little changes. The summit lava dome and the lava lobe continue to grow slowly and produce regularly small to medium-sized pyroclastic flows as the material collapses into avalanches. Run-out lengths have been reaching up to approx. 3 km.

Wolf (Galápagos Islands, Ecuador): The eruption that started 4 weeks ago continues strongly, but from the location of the origin of the thermal signal it seems that since around 13 June, the eruption has been occurring from vents inside the vast summit caldera rather than from the fissure vents that opened on the upper ESE flank on 25 May.
This could be because the dike (the fissure inside the edifice serving as pathway for the magma) that fed the original eruption has simply propagated into the caldera floor, or because an entirely new dike, hence a simultaneous second eruption has occurred.
As judging from the thermal signal, the eruption continues with increased strength since mid June.

Pacaya (Guatemala): Mild strombolian activity has resumed in the main (Mackenney) crater of the volcano. INSIVUMEH reported intense degassing, small ash emissions, incandescence at night and volcanic tremor.
The seismic activity of the volcano has been increasing during the past days accompanying the onset of the new eruptive phase. There is a possibility that it further increases and produces a more violent eruptive phase with lava fountaining and/or lava flow activity.

Fuego (Guatemala): Activity has been relatively intense. Strombolian-type explosions with abundant incandescent bombs up to 200 m and ash plumes rising 1000 m have been frequent. A lava flow of 200 m length is active in the direction of the Santa Teresa drainage (WSW side).
Explosions generated strong rumblings and weak shock waves. In addition, locomotive-like degassing sounds lasting several minutes can often be heard.

Ubinas (Peru): A new phase of intermittent explosions and associated ash emissions from the volcano started Saturday evening (20 June).
The new surge of activity has been accompanied by a rise of seismic activity since early June, characterized by earthquakes related to rock fracturing under the volcano and signals caused by internal fluid movements, both results of increased internal pressure.
A weak thermal anomaly had also become visible on satellite data since mid June, as more heat is being transferred to the crater of the volcano. This announced the rising of a new magma batch that is now causing the currently still small eruptions.

Volcano Activity Summary for 22 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)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 6 Jun 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): 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)
Mount Olympus (Mars)
Nishino-shima (Volcano Islands, Japan): growing island (updated 19 Jan 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 22 Jun 2015)
Reventador (Ecuador): frequent explosions, growing lava dome, lava flow on SW flank (updated 24 May 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 22 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 22 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)
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)
Manam (Papua New Guinea): occasional ash emissions (updated 22 Jun 2015)
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)
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
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)
Tuesday, Jun 16, 2015
Asama (Honshu): (16 Jun) A small eruption occurred at the volcano this morning around 9am local time. ... [more]

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]
Sinabung volcano's lava dome on 10 June (photo: Sadrah Peranginangin / facebook)
Friday, Jun 12, 2015
Asama (Honshu): (12 Jun) The Japan Meteorological Agency (JMA) raised the alert of the volcano from 1 to 2 (on a scale of 1-5), as the volcano has recently been showing growing signs of unrest - increased seismic activity and strongly elevated gas emissions. ... [more]
Thermal signal of Karangetang volcano (MIROVA)
Thursday, Jun 11, 2015
Karangetang (Siau Island, Sangihe Islands, Indonesia): (11 Jun) Activity continues at the volcano with the effusion of a lava flow from the summit vent of the volcano and associated glowing avalanches. ... [more]

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