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Volcanic activity worldwide 5 Aug 2016: Santiaguito volcano, Gamalama, Pavlof, Sinabung, Bagana, Etna, Kilauea

Friday Aug 05, 2016 21:00 PM |

Map of today's active volcanoes
Map of today's active volcanoes
Ash plume from Etna's SE crater yesterday evening (RadioStudio7 webcam)
Ash plume from Etna's SE crater yesterday evening (RadioStudio7 webcam)
Bagana volcano this morning with a small plume extending SW
Bagana volcano this morning with a small plume extending SW
Eruption of Sinabung this morning (image: PVMBG)
Eruption of Sinabung this morning (image: PVMBG)
The new lava flow that reaches the ocean at Kilauea volcano seen on 2 Aug 2016 (image: HVO)
The new lava flow that reaches the ocean at Kilauea volcano seen on 2 Aug 2016 (image: HVO)
Ash fall from yesterday's eruption of Santiaguito on a car in Quetzaltenango (image: Conred)
Ash fall from yesterday's eruption of Santiaguito on a car in Quetzaltenango (image: Conred)
Etna (Sicily, Italy): (5 Aug) Since Wednesday (3 Aug) evening, the New SE crater has been producing intermittent small ash emissions. This activity has become more intense yesterday and seems to have decreased again today.
Weaker and rarer emissions had also occurred during 21-27 July and then again ceased. Thermal imagery shows that the ash is of low temperature only, which probably means that the origin are internal collapses rather than explosions of fresh magma inside the conduit. Volcanic tremor is currently low.

Bagana (Bougainville Island, Papua New Guinea): (5 Aug) Minor ash emissions were reported this morning by Darwin VAAC.
A gas plume with possibly light ash content is visible on this morning's satellite image extending WSW from the volcano.

Gamalama (Halmahera): (5 Aug) Small ash emissions from the volcano have continued yesterday and in the night. Due to the hazard of new ash falls, the airport remains closed today and is scheduled to reopen tomorrow morning at 11:00 am local time.
The Indonesian authorities keep the status level of the volcano at 2 (on a scale of 1-4, 4 being highest). No evacuations were ordered, but an exclusion zone of 1.5 km radius around the crater is in place. Ash falls were reported in several villages including Salero, Soa Sio, Sangaji, Dufa-Dufa, and in some parts of Central Ternate.
Based on information from the local volcano observatory, the ash from yesterday's activity reached 1,700 to 2,500 meters above sea level. Seismic data show no significant earthquake activity associated with the activity, but a weak constant tremor signal.

Sinabung (Sumatra, Indonesia): (5 Aug) Explosions continue to occur at the volcano almost daily. One this morning at 06:53 local time was relatively strong, producing a vertical ash column that rose 3000 m above the volcano's summit where a lava dome continues to grow slowly.
Another, but smaller explosion was reported yesterday morning at 10:20.

Kilauea (Hawai'i): No significant changes have occurred over the past week. As of yesterday, lava from the 61G flow was still flowing into the sea at the Kamokuna ocean entry, but the rate of lava reaching it has been relatively low recently. A small delta of new coastal land (extremely dangerous to approach as it is prone to sudden collapse) has by now formed there.
The lava lake at Halemaʻumaʻu Crater remains active, but has dropped recently and was 41 m (135 ft) below the Overlook crater rim as of yesterday.
HVO reports background levels of seismicity and deformation.

Pavlof (Alaska Peninsula, USA): (5 Aug) AVO lowered the alert level of the volcano back to advisory and the Aviation Color Code to yellow and declared that "the eruptive activity that was observed intermittently since July 28 has ended or paused.
Over the past several days there has been no evidence for continued ash emissions or signs of near surface magma in satellite data."

Santiaguito (Guatemala): (5 Aug) After several weeks of relative calm, another strong explosion occurred from the Caliente lava dome yesterday at 10:45 local time, the 75th vulcanian explosion in 2016.
Due to the currently bad weather (passing tropical storm Earl), there were no direct observations, but it could be inferred from ash falls observed in San Marcos, Loma Linda Palajunoj and Quetzaltenango city. The ash plume was estimated to have reached 5,000 meters asl.
Due to the heavy rainfalls, the risk of lahars (violent mud flows) through river beds draining from the volcano is elevated.

Volcano Activity Summary for 5 Aug 2016:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 12 Jul 2016)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 28 Nov 2015)
Bristol Island (United Kingdom, South Sandwich Is): new eruption since late April 2016 (updated 21 Jul 2016)
Bromo (East Java, Indonesia): intermittent mild ash emissions (updated 2 Aug 2016)
Chikurachki (Paramushir Island): explosive activity since 27 July 2016 (updated 28 Jul 2016)
Colima (Western Mexico): intermittent mild to moderate explosions (updated 29 Jul 2016)
Copahue (Chile/Argentina): strombolian activity from new intra-crater cone (updated 4 Jul 2016)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 12 Jul 2016)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Danakil depression, Ethiopia): overflowing lava lake (updated 2 Mar 2016)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 30 Jul 2016)
Gamalama (Halmahera): small ash eruption on 3 Aug 2016 (updated 5 Aug 2016)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Kilauea (Hawai'i): new surface lava flows from breakouts N and NE of Puu Oo since 24 May 2016 (updated 28 Apr 2015)
Klyuchevskoy (Kamchatka): strombolian explosions in summit crater, active lava flows on SE flank (updated 25 Jul 2016)
Masaya (Nicaragua): active lava lake ini summit crater (updated 12 Jul 2016)
Nevado del Ruiz (Colombia): intermittent mild to moderate ash emissions (updated 29 Jul 2016)
Nevados de Chillán (Central Chile): sporadic ash emissions (updated 2 Aug 2016)
Nyiragongo (DRCongo): new vent on crater floor (updated 1 Jun 2016)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): strombolian explosions (updated 29 Jul 2016)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 1 Aug 2016)
Reventador (Ecuador): lava flow on SW flank (updated 24 Feb 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 25 Jul 2016)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Santiaguito (Guatemala): intermittent strong explosions from growing Caliente dome (updated 5 Aug 2016)
Semeru (East Java, Indonesia): growing lava dome, mild strombolian activity in summit crater (updated 29 Jul 2016)
Shiveluch (Kamchatka): growing lava dome (updated 29 Jul 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 5 Aug 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 2016)
Turrialba (Costa Rica): near-continuous ash emissions (updated 25 Jul 2016)
Villarrica (Central Chile): lava lake in summit crater, spattering, strombolian explosions (updated 4 Apr 2016)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 13 Nov 2015)

Eruption warning / minor activity:

Alaid (Northern Kuriles): strombolian activity and lava flows in summit crater (updated 21 Jul 2016)
Aso (central Kyushu, Japan): degassing, sporadic steam / ash explosions (updated 8 Mar 2016)
Awu (North Sulawesi & Sangihe Islands): seismic unrest, eruption warning (updated 13 May 2016)
Bagana (Bougainville Island, Papua New Guinea): intermittent mild ash emissions (updated 5 Aug 2016)
Barren Island (Indian Ocean): weak thermal hot spot (updated 3 Mar 2016)
Bezymianny (Central Kamchatka Depression): steaming (updated 30 Jul 2016)
Brava (Cape Verde)
Bulusan (Luzon Island, Philippines): degassing (updated 29 Jul 2016)
Canlaon (Central Philippines): degassing, sporadic ash emissions (updated 29 Jul 2016)
Cerro Negro (Nicaragua): increased earthquake activity (updated 16 Feb 2016)
Chirpoi (Kurile Islands, Russia): degassing, steaming (updated 29 Jul 2016)
Etna (Sicily, Italy): intermittent ash emissions from New SE crater (updated 19 Apr 2014)
Heard (Australia, Southern Indian Ocean): strombolian activity, lava flow from Mawson Peak summit crater (updated 1 Feb 2016)
Karangetang (Siau Island, Sangihe Islands, Indonesia): rockfalls, glowing lava dome (updated 13 Jan 2016)
Karymsky (Kamchatka): weak activity (rare explosions?) (updated 16 Jun 2016)
Langila (New Britain, Papua New Guinea): ash emissions (updated 13 May 2016)
Lokon-Empung (North Sulawesi, Indonesia): seismic unrest, eruption warning (updated 9 Mar 2016)
Manam (Papua New Guinea): occasional ash emissions, thermal anomaly at crater (updated 13 Jul 2016)
Merapi (Central Java, Indonesia): sporadic phreatic explosions (updated 21 Aug 2015)
Michael (United Kingdom, South Sandwich Is): possible intermittent ash emissions (updated 3 Jun 2016)
Momotombo (Nicaragua): intermittent vulcanian explosions (updated 29 Mar 2016)
Niigata-Yake-yama (Honshu): sporadic explosions, seismic unrest (updated 8 May 2016)
Nyamuragira (DRCongo): small active lava lake in summit caldera (as of end of April 2016) (updated 12 Jun 2016)
Piton de la Fournaise (La Réunion): seismic unrest, inflation (updated 29 Jul 2016)
Poas (Costa Rica): sporadic phreatic explosions (updated 29 Jul 2016)
Rincón de la Vieja (Costa Rica): sproadic hydrothermal explosions (updated 3 May 2016)
Rinjani (Lombok): sudden eruption on 1 Aug 2016 (updated 2 Aug 2016)
Sabancaya (Peru): steaming, elevated seismic activity (updated 12 Jul 2016)
San Miguel (El Salvador): seismic unrest, inflation, strong degassing (updated 19 Jun 2016)
Sangeang Api (Indonesia): weak lava extrusion from summit crater (updated 11 Nov 2015)
Suwanose-jima (Ryukyu Islands): steaming, occasional ash emissions from On-take crater (updated 25 Jul 2016)
Telica (Nicaragua): lava glow from crater, degassing, occasional light ash emissions (updated 9 May 2016)
Tungurahua (Ecuador): inflation, eruption warning (updated 5 Jun 2016)
Ubinas (Peru): sporadic vulcanian explosions (updated 16 Jan 2016)
Zavodovski (South Sandwich Islands (UK)): strong steaming, degassing (updated 18 Jun 2016)

Previous news
Map of today's active volcanoes
Thursday, Aug 04, 2016
Bardarbunga (Central Iceland): (4 Aug) Moderate seismic unrest continues at the volcano. A swarm of earthquakes occurred yesterday afternoon under the northern caldera rim of the volcano. ... [more]
Map of today's active volcanoes
Wednesday, Aug 03, 2016
Brava (Cape Verde): Out of fear of a possible new eruption, authorities evacuated 300 people from Cova Da Joana town on Brava island. According to news reports, the National Institute of Meteorology and Geophysics recorded increased seismic activity including volcanic tremor that sparked fears an eruption could be imminent. ... [more]
Map of today's active volcanoes
Tuesday, Aug 02, 2016
Rinjani (Lombok): The volcano has remained calm since yesterday's sudden and very violent explosion. ... [more]
Map of today's active volcanoes
Monday, Aug 01, 2016
Sinabung (Sumatra, Indonesia): A series of 3 explosions occurred this morning at 06:09, 06:19 and 06:58 local time, generating ash plumes that rose 1200, 1500 and 2000 m above the volcano's summit, respectively. ... [more]
Map of today's active volcanoes
Saturday, Jul 30, 2016
Bezymianny (Central Kamchatka Depression): (30 Jul) Last night, Tokyo VAAC reported an ash plume from the volcano at 20:40 UTC, based on satellite data. ... [more]

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