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Volcanic activity worldwide 19 May 2017: Klyuchevskoy volcano, Shiveluch, Ibu, Dukono, Reventador, T...

Friday May 19, 2017 14:29 PM |

Map of today's active volcanoes
Map of today's active volcanoes
Strombolian activity at the SE crater's saddle vent and the peaks of tremor accompanying each short-lived episode (image: Boris Behncke / INGV Catania)
Strombolian activity at the SE crater's saddle vent and the peaks of tremor accompanying each short-lived episode (image: Boris Behncke / INGV Catania)
Satellite image of Klyuchevskoy volcano on 19 May 2017
Satellite image of Klyuchevskoy volcano on 19 May 2017
Small vulcanian eruption at Sakurajima earlier today
Small vulcanian eruption at Sakurajima earlier today
Satellite image of Ibu volcano on 18 May 2017
Satellite image of Ibu volcano on 18 May 2017
Satellite image of Sinabung volcano on 19 May 2017
Satellite image of Sinabung volcano on 19 May 2017
Satellite image of Dukono volcano on 19 May 2017
Satellite image of Dukono volcano on 19 May 2017
Earthquakes under Piton de la Fournaise during 04:00 and 17:30 on 18 May 2017 (OVPF)
Earthquakes under Piton de la Fournaise during 04:00 and 17:30 on 18 May 2017 (OVPF)
Etna (Sicily, Italy): We have several free spaces for (hiking) tours to the summit area of Etna in small groups (max 8 persons) on 16 and 17 June. The excursions are accompanied by a certified mountain guide and a volcanologist from our team (Dr. Tom Pfeiffer) and will aim to approach volcanic activity if present and the most interesting volcanic features.
Visit the Etna Tours page for more info!
...19 May:
Since 11 May, Etna has been in an unusual state of activity. At remarkably regular intervals of approx. 8 hours, the "saddle vent", located between Etna's old and new Southeast Crater, has been producing more than 20 brief episodes of mild strombolian activity, each accompanied by a short-lived increase in volcanic tremor amplitude. The episodes are further characterized by the absence of strong degassing.
What causes this unusual and certainly transient behavior is not exactly known. Researcher Dr Marco Neri tries to give an explanation in an article on La Gazzetta Siracusana(loosely translated):
... [read more]

Klyuchevskoy (Kamchatka): (19 May) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA CONTINUOUSLY OBS ON SATELLITE IMAGERY OBS VA DTG:18/2310Z

Shiveluch (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: POSS ERUPTION OBS AT 20170519/0540Z FL180 EXTD NE OBS VA DTG:19/0600Z

Sakurajima (Kyushu, Japan): Since its re-awakening in late March, the volcano seems to be back in its typical activity of intermittent small to moderate vulcanian explosions at rates of typically 2-3 per day. It also seems that since late April, it has picked up again to levels similar as during much of 2013-15, with sometimes larger explosions that generate tall ash plumes of up to 4-5 km height.
Most of the explosions come from the younger Showa crater on the upper eastern flank, although some also occur from the older summit vent Minamidake.
... [read more]
...19 May:
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA AT 20170519/0237Z 12NM SE OF RJFK FL050 STNR REPORTED

Manam (Papua New Guinea): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA EMISSIONS TO FL080 EXTD WNW OBS VA DTG:19/0510Z

Langila (New Britain, Papua New Guinea): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA OBS TO FL060 MOV N AT 19/0220Z.

Ibu (Halmahera, Indonesia): (19 May) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA OBS TO FL060 EXT 30NM TO NE AT 18/2300Z.

Sinabung (Sumatra, Indonesia): (19 May) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA TO FL210 MOV WNW AT 19/0148Z.

Dukono (Halmahera): (19 May) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA EMISSIONS TO FL070 MOV NW.

Turrialba (Costa Rica): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: POSSIBLE VA EMS

Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: NO EM DETECTED ON STLT OR WEBCAM

Piton de la Fournaise (La Réunion): A helicopter overfly yesterday evening confirmed that the reported short-lived eruption did actually not take place: no fresh lava could be seen at the supposed site of the eruption.
The eruption tremor detected by the observatory was likely only caused by degassing while the rising magma eventually did not reach the surface, but stopped at shallow depth. Scientists described dry "fractures on the surface".
... [read more]

Volcano Activity Summary for 19 May 2017:

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 10 May 2017)
Barren Island (Indian Ocean): strombolian activity in summit crater, lava flow effusion (updated 20 Feb 2017)
Bogoslof (United States, Aleutian Islands): quiet since 13 March 2017 (updated 17 May 2017)
Chirinkotan (Northern Kuriles, Russia): possible large explosion on 28 Nov 2016 (updated 2 Mar 2017)
Colima (Western Mexico): intermittent low-energy ash emissions (updated 12 Feb 2017)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 10 May 2017)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Danakil depression, Ethiopia): active summit lava lake, second lava lake and active lava flow field on southern rift (updated 2 Apr 2017)
Etna (Sicily, Italy): mini-eruptions at SE crater at regular intervals (updated 19 Apr 2014)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 7 May 2017)
Gamalama (Halmahera): small ash eruption on 3 Aug 2016 (updated 5 Aug 2016)
Heard (Australia, Southern Indian Ocean): strombolian activity in summit crater, lava flow effusion (updated 9 Feb 2017)
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 29 Sep 2016)
Klyuchevskoy (Kamchatka): explosive activity at summit crater (updated 2 May 2017)
Langila (New Britain, Papua New Guinea): likely lava flows or lava dome extrusion, strombolian activity (updated 29 Dec 2016)
Lopevi (Vanuatu): probably strombolian activity in summit crater (updated 13 Jan 2017)
Manam (Papua New Guinea): mild explosive activity at summit crater (updated 8 May 2017)
Masaya (Nicaragua): active lava lake ini summit crater (updated 12 Jul 2016)
Nishino-shima (Volcano Islands, Japan): strombolian eruption, effusion of lava flows (updated 24 Apr 2017)
Nyiragongo (DRCongo): new vent on crater floor (updated 9 Sep 2016)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): strombolian activity in summit crater, lava flow effusion (updated 2 Mar 2017)
Poas (Costa Rica): strong phreatic explosions (updated 8 May 2017)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 27 Nov 2016)
Reventador (Ecuador): lava flow on SW flank (updated 9 Jan 2017)
Sabancaya (Peru): frequent moderate explosions, intense ash emissions (updated 9 May 2017)
Sakurajima (Kyushu, Japan): intermittent vulcanian explosions (updated 19 May 2017)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Santiaguito (Guatemala): intermittent strong explosions from growing Caliente dome (updated 9 May 2017)
Semeru (East Java, Indonesia): growing lava dome, mild strombolian activity in summit crater (updated 10 Oct 2016)
Shiveluch (Kamchatka): growing lava dome (updated 12 May 2017)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 12 May 2017)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 18 May 2017)
Suwanose-jima (Ryukyu Islands): intense strombolian activity from Otake crater (updated 10 May 2017)
Villarrica (Central Chile): small active lava lake in summit crater (updated 23 Aug 2016)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 15 Sep 2016)

Eruption warning / minor activity:

Aoba (Vanuatu): steaming, possible ash emissions (updated 14 Aug 2016)
Aso (central Kyushu, Japan): degassing, sporadic steam / ash explosions (updated 8 Oct 2016)
Awu (North Sulawesi & Sangihe Islands): seismic unrest, eruption warning (updated 13 May 2016)
Batu Tara (Sunda Islands, Indonesia): unknown, possibly weak strombolian activity (updated 25 Aug 2016)
Bezymianny (Central Kamchatka Depression): new activity since around 12 Dec (updated 6 May 2017)
Bristol Island (United Kingdom, South Sandwich Is): eruption seems to have ended (updated 14 Sep 2016)
Bromo (East Java, Indonesia): intense degassing, intermittent ash emissions, crater glow (updated 10 Oct 2016)
Bulusan (Luzon Island, Philippines): intermittent ash emissions, intense degassing (updated 29 Dec 2016)
Canlaon (Central Philippines): degassing, sporadic ash emissions (updated 6 May 2017)
Cerro Negro (Nicaragua): increased earthquake activity (updated 16 Feb 2016)
Chaitén (Southern Chile and Argentina): seismic unrest (updated 22 May 2015)
Chikurachki (Paramushir Island): steaming, degassing (updated 23 Aug 2016)
Chirpoi (Kurile Islands, Russia): degassing, steaming (updated 29 Jul 2016)
Cleveland (Aleutian Islands, Alaska): growing lava dome in summit crater (updated 17 May 2017)
Copahue (Chile/Argentina): mild ash and steam emissions (updated 29 Dec 2016)
Ebeko (Paramushir Island): intermittent mild ash emissions (updated 12 May 2017)
Fort Selkirk (Canada)
Kambalny (Kamchatka, Russia): calmed down (updated 12 May 2017)
Karangetang (Siau Island, Sangihe Islands, Indonesia): rockfalls, glowing lava dome (updated 13 Jan 2016)
Karkar (Northeast of New Guinea): possible ash eruption on 1 February (updated 27 Mar 2014)
Karymsky (Kamchatka): weak activity (rare explosions?) (updated 16 Jun 2016)
Kerinci (Sumatra): intermittent ash explosions (updated 5 Jun 2016)
Krakatau (Sunda Strait, Indonesia): unrest, eruption pause or eruption ended (updated 22 Feb 2017)
Lascar (Northern Chile): sudden explosion on 30 Oct 2015 (updated 31 Oct 2015)
Llaima (Central Chile and Argentina)
Lokon-Empung (North Sulawesi, Indonesia): seismic unrest, eruption warning (updated 9 Mar 2016)
Merapi (Central Java, Indonesia): sporadic phreatic explosions (updated 21 Aug 2015)
Michael (United Kingdom, South Sandwich Is): heat signal from summit crater, unknown eruptive activity (updated 28 Nov 2016)
Momotombo (Nicaragua): intermittent vulcanian explosions (updated 29 Mar 2016)
Nevado del Ruiz (Colombia): intermittent mild to moderate ash emissions (updated 18 Oct 2016)
Nevados de Chillán (Central Chile): sporadic mild to moderate ash emissions (updated 2 Apr 2017)
Niigata-Yake-yama (Honshu): sporadic explosions, seismic unrest (updated 8 May 2016)
Nyamuragira (DRCongo): active lava lake in summit caldera (updated 2 Feb 2017)
Piton de la Fournaise (La Réunion): eruption warning (updated 19 May 2017)
Rincón de la Vieja (Costa Rica): sproadic hydrothermal explosions (updated 3 May 2016)
Rinjani (Lombok): sudden eruption on 1 Aug 2016 (updated 29 Sep 2016)
San Miguel (El Salvador): seismic unrest, inflation, strong degassing (updated 9 May 2017)
Sangeang Api (Indonesia): weak lava extrusion from summit crater (updated 11 Nov 2015)
Sete Cidades (Azores)
Soufriere Hills (Montserrat, West Indies (UK)): seismic unrest, occasional light ash venting (updated 21 Mar 2013)
Telica (Nicaragua): lava glow from crater, degassing, occasional light ash emissions (updated 9 May 2016)
Tungurahua (Ecuador): inflation, eruption warning (updated 5 Jun 2016)
Turrialba (Costa Rica): sporadic mild ash emissions (updated 12 May 2017)
Ubinas (Peru): intermittent ash explosions (updated 4 Oct 2016)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)
White Island (New Zealand): ash venting from 2012 lava dome (updated 13 Sep 2016)
Zavodovski (South Sandwich Islands (UK)): strong steaming, degassing (updated 18 Jun 2016)
Zhupanovsky (Kamchatka, Russia): steaming / degassing (updated 20 Nov 2016)

Previous news
Map of today's active volcanoes
Thursday, May 18, 2017
Stromboli (Eolian Islands, Italy): (18 May) The activity at Stromboli has recently increased a lot. During our ongoing tour to Stromboli and Etna, Marco Fulle reported that eruptions have been occurring at intervals of 5-10 minutes, most often from the two northeastern vents (towards the Stromboli village side), but also the central and western vents are active as the below time-lapse video shows. ... [more]

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