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Volcanic activity worldwide 23 May 2016: Etna volcano, Stromboli, Santiaguito, Fuego, Bromo, Dukono,...

Monday May 23, 2016 11:48 AM |

Some explosions at Stromboli this morning and during the night, from 3 different vents
Some explosions at Stromboli this morning and during the night, from 3 different vents
Strombolian activity at the NE crater this evening
Strombolian activity at the NE crater this evening
Ash emission from New SE crater this morning
Ash emission from New SE crater this morning
Explosion from Santiaguito yesterday 13:00 local time - two pyroclastic flows can be seen left and right at the base of the column (image: CONRED)
Explosion from Santiaguito yesterday 13:00 local time - two pyroclastic flows can be seen left and right at the base of the column (image: CONRED)
Lava fountaining at Fuego this morning (seen from Panimache, SW side)
Lava fountaining at Fuego this morning (seen from Panimache, SW side)
Ash emissions from Turrialba on 21 May 2016 (RSN)
Ash emission from Nevado del Ruiz yesterday
Ash emission from Nevado del Ruiz yesterday
Heat signal at Bristol island viewed on 17 May (Landsat 8 image with clear-weather overlay image as background)
Heat signal at Bristol island viewed on 17 May (Landsat 8 image with clear-weather overlay image as background)
Stromboli (Eolian Islands, Italy): The activity at the volcano has picked up recently and is now again at (fluctuating) moderate levels similar to what it has been during much of the past 10-15 years - extremely rewarding for those who climb it in the evening.
Apparently, the magma column inside the conduits has again risen and both the eastern, central and western vent are active and produce intermittent strombolian activity of various intensity.
... [read more]

Etna (Sicily, Italy): (22 May) Yet another paroxysm could be under way from the summit craters: after a calm day, strong strombolian eruptions have started a few hours ago from the NE crater. Along with the volcanic tremor signal which is rising again, the activity has been gradually increasing.
This might be the beginning of another paroxysm (if strombolian activity from the NE vent is a precursor of more violent activity of the Voragine or even the NE crater - the near future will tell...)
You can follow the activity live at various webcams.
...23 May:
Contrary to what it might have looked like, the volcano's activity from last night did not continue to increase, but quieted down for now.
Strombolian activity from the Northeast crater seems to have ceased during the second half of the night or early this morning. However, the volcano remains very restless: sporadic ash emissions occurred from the New SE crater and tremor remains slightly elevated, but shows no clear trend right now.

Bagana (Bougainville Island, Papua New Guinea): Mild eruptive activity continues at the volcano. Darwin VAAC reported an ash plume that rose to 7,000 ft (2.1 km) altitude and drifted west yesterday.

Bromo (East Java, Indonesia): Ash emissions from the volcano were reported earlier today by Darwin VAAC. Based on satellite observations, a plume of light ash is drifting 50 km to the NE at approx. 10,000 ft (3 km) altitude.

Dukono (Halmahera): No significant changes have occurred at the volcano. It emits near-constant ash plumes, which are regularly seen on satellite imagery.

Santiaguito (Guatemala): Very elevated activity continues at the active Caliente lava dome. Yesterday, another two strong explosions occurred at 08:30 and around 13:00 local time.
Both explosions produced tall ash plumes that rose 3-4 km above the dome, reaching altitudes of 15,000-20,000 ft (4.5 - 6 km) as well as triggering several pyroclastic flows that descended several kilometers on the flanks of the dome.
... [read more]

Fuego (Guatemala): The 10th paroxysmal eruption in 2016 is in progress at the volcano: starting yesterday, explosions have become stronger and more frequent. As the magma output rate increased strongly, the explosions have turned into pulsating lava fountains and a lava flow began to travel down the Las Lajas ravine on the SE flank, currently reaching about 1200-1500 m length.
INSIVUMEH reports moderate to strong explosions, glowing avalanches in all directions and noisy rumblings similar to a locomotive train.
... [read more]

Turrialba (Costa Rica): The eruptive activity of the volcano has remained steady with near-constant ash emissions with occasional increases. According to RSN, the level of seismic activity, dominated by volcanic tremor, gradually increased during Saturday and remained fluctuating yesterday, with an overall stable trend.
Bad weather prevented detailed observations during the past 48 hours, but light ash fall is expected in areas downwind (currently west and northwest).

Nevado del Ruiz (Colombia): The volcano remains restless and produces intermittent ash explosions of varying size. An emission of ash yesterday forced the regional La Nubia airport to close down for a few hours and the volcano observatory reported a new pulse likely occurring a short time ago.
While many emissions cannot be directly observed due to cloud cover, they have been rather frequent recently. Similar explosions were also observed on 17, 18, and 20 May when fine ash fall occurred in Manizales town 30 km northwest of the volcano.
... [read more]

Bristol Island (United Kingdom, South Sandwich Is): The latest eruption likely continues. On recent satellite images, a strong heat source caused by lava is still visible at the summit vent of the remote volcano.

Volcano Activity Summary for 23 May 2016:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 13 May 2016)
Aso (central Kyushu, Japan): degassing, sporadic steam / ash explosions (updated 8 Mar 2016)
Bagana (Bougainville Island, Papua New Guinea): intermittent mild ash emissions (updated 23 May 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 23 May 2016)
Chikurachki (Paramushir Island): new eruption since end of March 2016 (updated 31 Mar 2016)
Colima (Western Mexico): intermittent mild to moderate explosions (updated 20 May 2016)
Copahue (Chile/Argentina): seismic unrest, occasional ash venting (updated 22 Mar 2016)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 23 May 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)
Etna (Sicily, Italy): weak, dilute ash emissions from NE crater (updated 19 Apr 2014)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 23 May 2016)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 5 May 2016)
Kerinci (Sumatra): intermittent ash emissions (updated 1 May 2016)
Kilauea (Hawai'i): new lava flow from vents on NE flank of Pu'u 'O'o (updated 28 Apr 2015)
Kliuchevskoi (Kamchatka): mild strombolian activity in summit crater (updated 27 Apr 2016)
Langila (New Britain, Papua New Guinea): ash emissions (updated 13 May 2016)
Masaya (Nicaragua): active lava lake ini summit crater (updated 6 May 2016)
Momotombo (Nicaragua): intermittent vulcanian explosions (updated 29 Mar 2016)
Nevado del Ruiz (Colombia): intermittent mild to moderate ash emissions (updated 23 May 2016)
Nyiragongo (DRCongo): new vent on crater floor (updated 8 Mar 2016)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): intense spattering from intra-crater cone (updated 29 Mar 2016)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 20 Apr 2016)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): lava fountains, ash emissions from Tavurvur cone (updated 12 Sep 2014)
Reventador (Ecuador): lava flow on SW flank (updated 24 Feb 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 20 May 2016)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Santiaguito (Guatemala): intermittent strong explosions from growing Caliente dome (updated 23 May 2016)
Semeru (East Java, Indonesia): growing lava dome, lava flow, strombolian activity (updated 14 Feb 2016)
Shiveluch (Kamchatka): growing lava dome (updated 9 May 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 22 May 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 2016)
Suwanose-jima (Ryukyu Islands): strombolian explosions in Ontake crater (updated 20 Apr 2016)
Tungurahua (Ecuador): large and frequent explosions, ash columns rising several km (updated 9 Mar 2016)
Turrialba (Costa Rica): near-continuous ash emissions, explosions with ash plumes up to 3-4 km height (updated 23 May 2016)
Ubinas (Peru): sporadic vulcanian explosions (updated 16 Jan 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)
Zhupanovsky (Kamchatka, Russia): steaming / degassing (updated 31 Mar 2016)

Eruption warning / minor activity:

Alaid (Northern Kuriles): intense thermal signal from summit crater, strong degassing (updated 20 May 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)
Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Bromo (East Java, Indonesia): intermittent weak ash emissions (updated 23 May 2016)
Bulusan (Luzon Island, Philippines): occasional sporadic explosions (updated 23 Feb 2016)
Canlaon (Central Philippines): occasional sporadic explosions (updated 30 Mar 2016)
Cerro Negro (Nicaragua): increased earthquake activity (updated 16 Feb 2016)
Chirinkotan (Northern Kuriles, Russia): sporadic ash emissions (updated 28 Jul 2015)
Cleveland (Aleutian Islands, Alaska): energetic steaming and highly elevated temperatures (updated 20 May 2016)
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)
Kavachi (Solomon Islands): no eruption since 2007 (updated 16 Jun 2014)
Kick 'em Jenny (West Indies, Grenada): volcanic unrest, eruption warning (updated 24 Jul 2015)
Krakatau (Sunda Strait, Indonesia): steaming, seismic unrest (updated 15 Nov 2015)
Kuchinoerabu-jima (Ryukyu Islands): large explosive eruption on 29 May 2015 (updated 27 Mar 2015)
Lascar (Northern Chile): sudden explosion on 30 Oct 2015 (updated 31 Oct 2015)
Lokon-Empung (North Sulawesi, Indonesia): seismic unrest, eruption warning (updated 9 Mar 2016)
Lopevi (Vanuatu): eruption warning (updated 16 Dec 2014)
MacDonald (Austral Islands,  ): steaming observed (updated 6 Feb 2016)
Manam (Papua New Guinea): large explosion on 31 July 2015 (updated 4 Mar 2016)
Mayon (Luzon Island, Philippines): steaming (updated 18 Dec 2014)
Merapi (Central Java, Indonesia): sporadic phreatic explosions (updated 21 Aug 2015)
Michael (United Kingdom, South Sandwich Is): unspecified activity detected as hot spot on satellite data (updated 3 Oct 2015)
Nevados de Chillán (Central Chile): sporadic ash emissions, seismic unrest (updated 9 May 2016)
Niigata-Yake-yama (Honshu): sporadic explosions, seismic unrest (updated 8 May 2016)
Nyamuragira (DRCongo): lava lake in summit crater disappeared in early April 2016 (updated 16 Apr 2016)
Ontake-san (Honshu): steaming, low seismic activity (updated 18 Dec 2014)
Papandayan (West Java): steaming (updated 6 May 2013)
Pavlof (Alaska Peninsula, USA): possible new eruption since 13 May (updated 14 May 2016)
Poas (Costa Rica): phreatic explosions (updated 14 Oct 2014)
Rasshua (Central Kuriles)
Raung (East Java): intra-caldera eruption with lava flow and strombolian activity (updated 27 Aug 2015)
Rincón de la Vieja (Costa Rica): sproadic hydrothermal explosions (updated 3 May 2016)
Sabancaya (Peru): steaming, elevated seismic activity (updated 11 Oct 2015)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): intermittent ash explosions (updated 24 Apr 2016)
San Miguel (El Salvador): intermittent ash emissions (updated 15 Jan 2016)
Sangeang Api (Indonesia): weak lava extrusion from summit crater (updated 11 Nov 2015)
Sirung (Pantar Island, Indonesia ): degassing (updated 10 Jul 2015)
Slamet (Central Java): steam emissions (updated 12 Jan 2015)
Telica (Nicaragua): lava glow from crater, degassing, occasional light ash emissions (updated 9 May 2016)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)

Previous news
The deadly pyroclastic flow at Sinabung yesterday (image: PVMBG)
Sunday, May 22, 2016
Sinabung (Sumatra, Indonesia): A series of pyroclastic flows occurred yesterday afternoon - sadly, at least one of them was was much larger than most others during the past months and claimed at least 3 victims from local farmers who were working on their fields within the exclusion zone, approx. 4 km from the volcano. ... [more]
Intense glow from Etna's Voragine where lava fountaining seems to have started
Saturday, May 21, 2016
Etna (Sicily, Italy): (21 May) Activity at the Voragine has been steadily increasing during the evening and night so far - strombolian activity is probably now turning into lava fountaining: the 3rd paroxysm of the summit crater within less than 3 days - is about to occur. ... [more]
Glow still visible from the new lava flow on the eastern upper flank of Etna
Friday, May 20, 2016
Etna (Sicily, Italy): (19 May) The second paroxysm from the Voragine summit crater ended gradually during the course of today. Bad weather prevented detailed observations for most of the time. ... [more]
Lava flow from Etna's New SE crater this evening (Osservatorio Meteorologico Nunziata webcam)
Thursday, May 19, 2016
Etna (Sicily, Italy): (18 May) The first eruption of Etna in 2016 has been rapidly changing, involving 3 of the 4 summit craters. After yesterday and partly today's strombolian activity from the North-East (and probably New SE) crater, a short, but violent phase of lava fountaining (paroxysm) occurred at the main summit vent, the Voragine. After this, the eruption has become dominantly effusive and is now producing a lava flow from a fissure vent on the lower eastern flank of the New SE crater. The lava flow, with one main channel and few secondary branches, is currently traveling into the Valle del Bove. ... [more]
Strombolian activity at the NE Crater (Osservatorio Meteorologico Nunziata webcam)
Wednesday, May 18, 2016
Etna (Sicily, Italy): (18 May) Since yesterday, volcanic tremor has been gradually increasing and during the evening mild explosive strombolian activity started from the North-East crater. ... [more]

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