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Volcanic activity worldwide 31 Aug 2016: Bardarbunga volcano, Katla

Wednesday Aug 31, 2016 21:00 PM |

Map of today's active volcanoes
Map of today's active volcanoes
Yesterday's magnitude 3.8 quake at Bardarbunga volcano
Yesterday's magnitude 3.8 quake at Bardarbunga volcano
Earthquakes under Katla during the past 7 days
Earthquakes under Katla during the past 7 days
Bardarbunga (Central Iceland): A magnitude 3.8 earthquake followed by dozens of small aftershocks occurred yesterday at 3 km depth under the volcano's northeastern caldera rim (located under the ice cap).
While it is possible that such earthquakes are caused by shallow magma intrusions, the present quakes at Bardarbunga are more likely result of volcano-tectonic movements, in this case the continuing subsidence of the caldera (a so-called slow caldera collapse) which has been going on since the large 2014-15 Holuhraun flank eruption.
This also seems to reflect the opinion of Icelandic Met Office's seismologists according to a local press article.

Katla (Southern Iceland): Following Monday's large earthquakes, the volcano remains relatively calm seismically, with only small swarms of deep to shallow earthquakes occurring under the northern flank. According to experts, there is currently no sign of an eruption being imminent.
Icelandic authorities are aware of the potential danger the next eruption of Katla represents (whether it occurs in the next months or only decades from now). A delegation of the volcanologists from the Icelandic Met Office was invited to discuss with a committee of the Icelandic Parliament about how to respond in case of an eruption.
... [read more]

Volcano Activity Summary for 31 Aug 2016:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 12 Jul 2016)
Bagana (Bougainville Island, Papua New Guinea): intermittent mild ash emissions (updated 29 Aug 2016)
Bromo (East Java, Indonesia): intermittent mild ash emissions (updated 2 Aug 2016)
Colima (Western Mexico): intermittent mild to moderate explosions (updated 14 Aug 2016)
Copahue (Chile/Argentina): strombolian explosions in El Agrio crater (updated 29 Aug 2016)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 14 Aug 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 25 Aug 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 29 Aug 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 10 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 14 Aug 2016)
Reventador (Ecuador): lava flow on SW flank (updated 8 Aug 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 22 Aug 2016)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Santiaguito (Guatemala): intermittent strong explosions from growing Caliente dome (updated 25 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 14 Aug 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 25 Aug 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 2016)
Suwanose-jima (Ryukyu Islands): steaming, occasional ash emissions from On-take crater (updated 25 Aug 2016)
Turrialba (Costa Rica): near-continuous ash emissions (updated 25 Jul 2016)
Villarrica (Central Chile): small active lava lake in summit crater (updated 23 Aug 2016)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2016)

Eruption warning / minor activity:

Alaid (Northern Kuriles): strombolian activity and lava flows in summit crater (updated 21 Jul 2016)
Aoba (Vanuatu): steaming, possible ash emissions (updated 14 Aug 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)
Barren Island (Indian Ocean): weak thermal hot spot (updated 3 Mar 2016)
Batu Tara (Sunda Islands, Indonesia): unknown, possibly weak strombolian activity (updated 25 Aug 2016)
Bezymianny (Central Kamchatka Depression): steaming (updated 30 Jul 2016)
Bristol Island (United Kingdom, South Sandwich Is): eruption seems to have ended (updated 8 Aug 2016)
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)
Chikurachki (Paramushir Island): steaming, degassing (updated 23 Aug 2016)
Chirpoi (Kurile Islands, Russia): degassing, steaming (updated 29 Jul 2016)
Etna (Sicily, Italy): weak strombolian activity in Voragine summit 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)
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
Monday, Aug 29, 2016
Etna (Sicily, Italy): Over the past weeks, the volcano's activity (at Voragine and the New SE crater) has generally decreased and tremor levels are currently low. ... [more]
Map of today's active volcanoes
Sunday, Aug 28, 2016
Popocatépetl (Central Mexico): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA NOT OBS. ... [more]
Map of today's active volcanoes
Saturday, Aug 27, 2016
Sinabung (Sumatra, Indonesia): (27 Aug) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA OBS TO FL130 MOV ENE AT 27/0510Z. ... [more]
Map of today's active volcanoes
Friday, Aug 26, 2016
Colima (Western Mexico): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: DISCRETE EMS ... [more]
Map of today's active volcanoes
Thursday, Aug 25, 2016
Klyuchevskoy (Kamchatka): The effusive and sometimes mildly explosive eruption of the volcano continues with little changes. ... [more]

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