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Volcanic activity worldwide 31 Jul 2015: Piton de la Fournaise volcano, Sinabung, Manam

Friday Jul 31, 2015 21:00 PM |

Ash plume from Manam volcano (Himawari-8 True Color imagery)
Ash plume from Manam volcano (Himawari-8 True Color imagery)
Pyroclastic flow at Sinabung volcano yesterday (image: Mbah Lëwå / facebook)
Pyroclastic flow at Sinabung volcano yesterday (image: Mbah Lëwå / facebook)
The new eruptive fissure at Piton de la Fournaise (image: Guillaume Cazarré / clicanoo)
The new eruptive fissure at Piton de la Fournaise (image: Guillaume Cazarré / clicanoo)
Manam (Papua New Guinea): A large explosive eruption occurred at the volcano today. The event produced an ash column that rose to approx. 65,000 ft (20 km) altitude and started to drift SW.
VAAC Darwin changed aviation color code to red. This explosion, vulcanian or perhaps even sub-plinian in size, is the largest at the volcano in over 10 years. It seems to be similar to the powerful 24 Oct 2004 explosion.

Sinabung (Sumatra, Indonesia): A series of small to medium-sized pyroclastic flows occurred yesterday as a result of the ongoing destruction of the unstable lava lobe present on the upper eastern flank.
A church from the already mostly buried village of Bekerah, so far still standing, was covered by and disappeared forever under fresh pyroclastic flow deposits.

Piton de la Fournaise (La Réunion): The expected new eruption, the third in 2015, started this morning at 09.20 local time.
The eruptive fissure vent is located NE from Piton Kapor and extending towards Nez Coupé de Ste Rose. It feeds a curtain of lava fountains with associated lava flows. Access to the Enclos has been closed.

Volcano Activity Summary for 31 Jul 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 5 Jul 2015)
Calbuco (Southern Chile and Argentina): steaming (updated 30 Apr 2015)
Colima (Western Mexico): weak lava effusion from summit vent (updated 22 Jul 2015)
Copahue (Chile/Argentina): ash venting (updated 4 Dec 2014)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 28 Jul 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 5 Jul 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 28 Jul 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 Jul 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 since 31 July 2015 (updated 31 Jul 2015)
Poas (Costa Rica): phreatic explosions (updated 14 Oct 2014)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 28 Jul 2015)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): lava fountains, ash emissions from Tavurvur cone (updated 12 Sep 2014)
Raung (East Java): intra-caldera eruption with lava flow and strombolian activity (updated 28 Jul 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)
Sangeang Api (Indonesia): lava flow on SE flank (updated 10 Jul 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 31 Jul 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 5 Jul 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)
Chirinkotan (Northern Kuriles): sporadic ash emissions (updated 28 Jul 2015)
Cleveland (Aleutian Islands, Alaska): intermittent explosions (updated 21 Jul 2015)
Etna (Sicily, Italy): sporadic weak ash emissions from New SE crater (updated 19 Apr 2014)
Gamalama (Halmahera): new eruption on 18 Dec 2014 (updated 16 Jul 2015)
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)
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)
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): sporadic ash emissions (updated 22 Jul 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 5 Jul 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)
Sabancaya (Peru): steaming, elevated seismic activity (updated 28 Jul 2015)
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)
Sirung (Pantar Island, Indonesia ): degassing (updated 10 Jul 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, Jul 30, 2015
Piton de la Fournaise (La Réunion): A new eruption might be under way at the volcano. Since last weekend, seismic activity from a source at 1-2 km depth beneath Dolomieu crater has been increasing. In addition, increased degassing and inflation of the Dolomieu crater have been detected, both likely signs of a new magma intrusion at shallow depth. ... [more]
Recent earthquakes under Meakan volcano (JMA)
Tuesday, Jul 28, 2015
Karymsky (Kamchatka): An ash plume from an explosion produced an ash plume that rose to 14,000 ft (4.2 km) altitude and drifted north this morning. The volcano continues to produce intermittent strombolian- to vulcanian-type explosive eruptions. ... [more]
Pyroclastic flow at Sinabung volcano today at 12:22
Monday, Jul 27, 2015
Sinabung (Sumatra, Indonesia): (27 Jul) Activity has remained essentially unchanged. Effusion of viscous lava continues at slow pace to feed the lava dome with two active lobes on the SE and E upper flanks. At 12:22 local time today, a small part of the eastern lobe collapsed into a medium-sized pyroclastic flow that traveled approx. 2.5 km towards the outskirts of the (already evacuated and destroyed) villages of Bekerah and Simacem. ... [more]
Incandescence from the two lava lobes of Sinabung and a rockfall at night (25 July)
Sunday, Jul 26, 2015
Sinabung (Sumatra, Indonesia): During the past 2,3 days, the volcano has been relatively calm and not produced pyroclastic flows, only small rockfalls from two lava lobes, a smaller and a much larger one, overspilling to the SE and ENE, respectively ... [more]
Ash plume from Sinabung's pyroclastic flow yesterday morning (photo: Mbah Lëwå / facebook)
Friday, Jul 24, 2015
Sinabung (Sumatra, Indonesia): A moderately large pyroclastic flow occurred yesterday morning, reaching 3 km length on the SE side and producing a 1.5 km ash plume. ... [more]

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