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Volcanic activity worldwide 23 May 2014: Merapi, Sinabung, Sakurajima, Nishino-shima, San Miguel

vr, 23 mei 2014, 21:00
21:00 PM |
Nishino-shima on 21 May 2014 (Japanese Coast Guard)
Nishino-shima on 21 May 2014 (Japanese Coast Guard)
Eruption of Sakurajima this morning (Tarumizu City webcam)
Eruption of Sakurajima this morning (Tarumizu City webcam)
The possible ash plume from Sinabung and predicted trajectory (VAAC Darwin; MTSAT; annotations by @CultureVolcan / Twitter)
The possible ash plume from Sinabung and predicted trajectory (VAAC Darwin; MTSAT; annotations by @CultureVolcan / Twitter)
Merapi volcano recently (VSI)
Merapi volcano recently (VSI)
Ash puffs from Chaparrastique volcano on 19 May
Ash puffs from Chaparrastique volcano on 19 May
Nishino-shima (Volcano Islands): The eruption on the remote island continues. The most recent overflight pictures by the Japanese Coast Guard show two active vents, one with a small lava-filled vent likely producing strombolian explosions, the other emitting a steam and gas plume.
At least some lava flows remain active and reach the coast, continuing to enlarge the island (visible by steam generated at the fronts).

Sakurajima (Kyushu, Japan): Following a week with no recorded vulcanian explosions, two relatively strong ones occurred this morning, producing ash plumes that rose to 11-12,000 ft (3.3-3.6 km) altitude. Since then, the Showa crater has been constantly venting ash.


Sinabung (Sumatra, Indonesia): VAAC Darwin raised the Aviation Color Code to "Red" after a possible major ash plume was spotted on satellite imagery. According to the original report, a possible ash plume rose to estimated 50,000 ft (15 km) altitude 12:32 UTC on 22 May and drifted SW. The height was later reduced to 35,000 ft (12 km).
It is unclear if the plume was a volcanic ash plume, in which case it would suggest a major explosion occurred at the volcano. However, VSI and local media did not report any usual activity at the volcano, suggesting that most likely the observed plume was from a storm cloud.

Merapi (Central Java, Indonesia): The Indonesian Volcanological Survey (VSI) lowered the alert level of Merapi back to "Normal" (1 out of 4). This decision came after signs of unrest had recently decreased again:
- Earthquake activity decreased both in number and type during the past weeks.
... [read more]

San Miguel (El Salvador): An eruption of the Chaparrastique volcano in the near future is becoming more and more likely. Tremor continues to rise and pulsating gas emissions have become stronger and sometimes contain small amounts of volcanic ash.
The increased tremor and gas emissions suggest movements of hot fluids (gasses, water, magma) into the volcano's shallow plumbing system. MARN expects an eruption either from the central crater or a flank vent on the northern side (where most microseismic activity has been focused).
... [read more]

Volcano Activity Summary for 23 May 2014:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 14 Aug 2013)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 1 May 2014)
Barren Island (Indian Ocean): intermittent activity, likely strombolian-type and/or lava flows (updated 4 Feb 2014)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 18 May 2014)
Colima (Western Mexico): extrusion of lava flow from summit, intermittent explosions (updated 10 Apr 2014)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 15 May 2014)
Erebus (Antarctica): active lava lake in summit crater (updated 21 Jan 2012)
Erta Ale (Ethiopia): active lava lake in northern pit crater, active hornito with intermittend flow in southern crater (updated 11 Jan 2013)
Fuego (Guatemala): strombolian explosions from summit crater, intermittent lava flows (updated 22 May 2014)
Gamalama (Halmahera): ash eruptions since 17 Sep (updated 17 Sep 2012)
Grozny (Iturup Island): fumarolic activity (updated 3 Apr 2013)
Heard (Australia, Southern Indian Ocean): likely lava lake in summit crater (updated 1 Aug 2013)
Ibu (Halmahera, Indonesia): growing lava dome, occasional ash emissions (updated 30 Mar 2014)
Karkar (Northeast of New Guinea): possible ash eruption on 1 February (updated 27 Mar 2014)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 13 Apr 2014)
Kavachi (Solomon Islands): no eruption since 2007 (updated 2 Feb 2014)
Kilauea (Hawai'i): lava lakes in Halemau'uma'u and Pu'u 'O'o, lava flows on coastal flat and weakly active ocean entries (updated 13 Aug 2013)
Kizimen (Kamchatka): degassing (updated 22 Aug 2013)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 25 Jul 2013)
Manam (Papua New Guinea): degassing, occasional ash venting (updated 28 Aug 2013)
Marapi (Western Sumatra, Indonesia): sporadic explosions (updated 27 Mar 2014)
Nishino-shima (Volcano Islands): lava effusion enlarging the new island (updated 23 May 2014)
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)
Reventador (Ecuador): intermittent explosions, lava fountaining and lava flow emission on 23-24 April (updated 13 May 2014)
Sakurajima (Kyushu, Japan): ash venting, intermittent explosions (updated 23 May 2014)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 22 May 2014)
Semeru (East Java, Indonesia): growing lava dome, ash venting and small to moderate explosions (updated 25 Jul 2012)
Shiveluch (Kamchatka): growing lava dome, incandescent avalanches, occasional explosions (updated 1 May 2014)
Sinabung (Sumatra, Indonesia): effusion of viscous lava, steaming, ash emissions (updated 23 May 2014)
Slamet (Central Java): strombolian explosions from central crater (updated 30 Apr 2014)
Stromboli (Eolian Islands, Italy): continuing lava overflows (updated 25 Jul 2013)
Suwanose-jima (Ryukyu Islands): strombolian activity in summit crater (updated 1 May 2014)
Tinakula (Santa Cruz Islands, Solomon Islands): increased activity at the volcano (updated 8 Feb 2013)
Tungurahua (Ecuador): strombolian activity, effusion of lava flow on upper NW flank (updated 28 Apr 2014)
Ubinas (Peru): degassing, sporadic small explosions and ash venting (updated 18 May 2014)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)

Eruption warning / minor activity:

Bezymianny (Central Kamchatka Depression): steaming, degassing (updated 10 Jun 2013)
Chirpoi (Kurile Islands, Russia): hot spot visible on satellite imagery (updated 1 May 2014)
Cleveland (Aleutian Islands, Alaska): occasional small explosions (updated 2 Mar 2014)
Copahue (Chile/Argentina): seismic unrest (updated 21 Mar 2014)
Dieng (Central Java): increased degassing (updated 28 Mar 2013)
Etna (Sicily, Italy): lava flow from base of New SE crater, strombolian explosions / ash emissions from NSEC (updated 19 Apr 2014)
Galeras (Colombia): sporadic ash emissions (updated 25 Jul 2013)
Gamkonora (Halmahera): seismic swam, minor ash emissions (updated 27 May 2013)
Iliwerung (Lesser Sunda Islands): possible submarine eruption from Mt Hobal on 20 August (updated 20 Aug 2013)
Iwo-Tori-shima (Ryukyu Islands): possible small ash eruption on 6 July 2013 (updated 6 Jul 2013)
Kelud (East Java): steaming, activity at crater unknown (updated 2 Mar 2014)
Kerinci (Sumatra): seismic unrest (updated 5 Jun 2013)
Ketoi (Kurile Islands, Russia)
Kikai (Ryukyu Islands): steaming at summit crater of Iodake, occasional weak glows (updated 5 Jun 2013)
Kirishima (Kyushu): degassing, alert lowered (updated 30 Jul 2012)
Krakatau (Sunda Strait, Indonesia): degassing (updated 31 Mar 2014)
Langila (New Britain, Papua New Guinea): occasional ash explosions (updated 11 Feb 2013)
Medvezhia (Kurile Islands, Russia): strong steaming, thermal anomaly (updated 17 Jan 2013)
Nyamuragira (DRCongo): increased seismic activity (updated 13 Apr 2014)
Pacaya (Guatemala): weak strombolian activity in summit crater (updated 18 Apr 2014)
Papandayan (West Java): strong hydrothermal activity, increased seismicity (updated 6 May 2013)
Poas (Costa Rica): occasional small phreatic explosions, intense degassing (updated 30 Mar 2014)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 1 May 2014)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): weak ash explosions (updated 26 Aug 2013)
Rasshua (Central Kuriles)
Raung (East Java): strombolian activity in summit crater (updated 5 Aug 2013)
Rincón de la Vieja (Costa Rica): small phreatic eruption on 11 April (updated 6 Oct 2012)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): possible ash emission on 11 April (updated 12 Apr 2014)
San Miguel (El Salvador): gas and ash emissions (updated 23 May 2014)
Sangay (Ecuador): degassing (updated 24 May 2013)
Shishaldin (United States, Aleutian Islands): possibly lava fountaining episodes in summit crater (updated 15 May 2014)
Soputan (North Sulawesi, Indonesia): degassing, seismic crisis, eruption warning (updated 1 May 2014)
Turrialba (Costa Rica): ash venting, strong degassing (updated 24 Jul 2013)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)
White Island (New Zealand): strong degassing, volcanic tremor (updated 20 Aug 2013)
Zavodovski (South Sandwich Islands (UK)): no activity detected in recent weeks (updated 9 May 2014)

Vorig nieuws
Thu, 22 May 2014, 21:00
Santa María / Santiaguito (Guatemala): (22 May) Following the partial collapse of the upper part of the Caliente lava dome on 9 May, the activity of Santiaguito has remained relatively low. ... Lees alle
Tue, 20 May 2014, 21:00
Kilauea (Hawai'i): (20 May) After a week of many changes here on Kilauea, summit tilemeters recorded slowing inflationary tilt. The summit tiltmeters recorded the start of inflationary tilt at 6:30pm on Saturday May 17th - this suggests that the unusual deflationary tilt recorded since May 10 may have been a DI tilt event that totaled almost 8 microradians before the tilt switched. ... Lees alle
Sun, 18 May 2014, 21:00
Fuego's lava flow yesterday morning
Batu Tara (Sunda Islands, Indonesia): (18 May) The volcano has entered a phase of more vigorous explosions again. In the past days, it produced a series of ash plumes that were detected on satellite imagery. VAAC Darwin reported volcanic ash drifting at 8,000 ft (2.4 km) altitude for 50 km to the west. ... Lees alle
Thu, 15 May 2014, 21:00
Small pyroclastic flow at Sinabung on the morning of 13 May
Sinabung (Sumatra, Indonesia): (15 May) Activity at the volcano remains weak. Slow lava extrusion continues along with occasional ash venting and small pyroclastic flows triggered by collapse of parts of the viscous lava lobe on the southern flank. ... Lees alle
Tue, 13 May 2014, 21:00
Ash plume from an explosion at Sakurajima early on 10 May
Sakurajima (Kyushu, Japan): After a series of powerful explosions on 10 May, which produced ash plumes up to 18,000 ft (5.5 km) altitude, the volcano has been quieter again over the past days. ... Lees alle
 

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