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Volcanic activity worldwide 30 May 2014: Santa María / Santiaguito, Reventador, Sangeang Api, Cerro...

vr, 30 mei 2014, 16:09
16:09 PM |
Today's eruption column at Sangeang Api (photo: @Bambang_Bimawan / Twitter)
Today's eruption column at Sangeang Api (photo: @Bambang_Bimawan / Twitter)
Lahar in the Tambor river yesterday (image: @ConredGuatemala / twitter)
Lahar in the Tambor river yesterday (image: @ConredGuatemala / twitter)
Seismic signal at Fuego volcano (FG3 station, INSIVUMEH)
Seismic signal at Fuego volcano (FG3 station, INSIVUMEH)
Tremor amplitude at Chaparrastique volcano over the past weeks (MARN)
Tremor amplitude at Chaparrastique volcano over the past weeks (MARN)
SO2 plume over Central America (NOAA)
SO2 plume over Central America (NOAA)
Ash explosion at Reventador today (IGPEN webcam)
Ash explosion at Reventador today (IGPEN webcam)
Sangeang Api (Indonesia): A major explosive eruption occurred at the remote volcano this morning at around 08:30 UTC. A subplinian eruption column quickly rose to an estimated 50-65,000 ft (15-20 km) altitude and drifted several hundred km to the east and southeast.
Ash fall was reported in areas up to 30 km downwind from the volcano.
... [read more]

Ambrym (Vanuatu): (29 May)

Pagan (Mariana Islands): USGS reports that "low-level unrest continued at Pagan Volcano throughout the past week. Seismic activity remains above background. A vapor plume was visible in web camera and satellite images.
Volcanic gas from Pagan may be noticed downwind of the volcano as a distinctive sulfurous odor." The Aviation Color Code remains at YELLOW.

Santa María / Santiaguito (Guatemala): Ongoing rainfall has been causing a number of mud flows (lahars) in the rivers draining from Santiaguito, including Samala, San Isidro and Tambor.
A first large hot lahar descended the Nima I river bed yesterday. The sulfur-smelling mud flow was about 25 m wide and 3 m deep, carrying blocks of up to 50 cm in diameter and pieces of tree trunks and branches of up to 2 m. On its passage near the observatory, it made the ground vibrate. The lahar drained into the Samala river.

Fuego (Guatemala): Activity has decreased a bit. Strombolian explosions produced incandescent ejections to up to about 100 m and ash plumes rose to approx. 500 m.

San Miguel (El Salvador): The amplitude of internal vibration (tremor) at Chaparrastique volcano has suddenly dropped during the past 24 hours indicating that the volcanic system remains unstable, MARN informs in its latest special bulletin. Gas emissions remain elevated.
The possibility of an eruption from a summit or flank vent remains high and monitoring continues at highest level.

Turrialba (Costa Rica): The volcano could be becoming more active with increased degassing. An elevated SO2 concentration in the atmosphere above and near the volcano was visible on satellite data yesterday. Seismic activity appears to be elevated.

Galeras (Colombia): Activity at the volcano is currently low.
Seismic activity and gas emissions are at low to moderate levels. No recent ash emissions have occurred.

Cumbal (Colombia): Seismic unrest continues at the volcano, still on alert status Yellow, with little variation over the past months. The Pasto volcano observatory reported a 50% increase in earthquakes during the past week.
Most earthquakes were associated with internal fluid movements. The other quakes, all very small, were due to rock fracturing at shallow depths. No other signs of unrest were observed at the volcano recently.

Sotará (Colombia): Seismic activity associated with rock fracturing processes under the volcano showed a slight increase during the past week. The earthquakes occurred mainly under the Paletará valley, approximately 12 km northeast of the volcano at depths between 6 and 10 km, and had local magnitudes between 0.3 and 2.2 on the Richter scale.
Slight deformation has been detected at the volcano, but no changes or signs of activity are visible at the surface. The volcano remains at Yellow alert.

Cerro Negro de Mayasquer (Colombia): Unrest at the volcano continues in the form of earthquakes under the Chiles-Cerro Negro volcanic massif. During the past week, the monitoring network recorded around 6500 quakes, mostly located less than 4 km SW from the summit at depths ranging between 1 and 8 km and with magnitudes of up to 4.0 on the Richter scale.
Most of the earthquakes are volcanic-tectonic, i.e. associated with the fracturing of rock due to fluid pressure underground.
On May 21, 3 earthquakes at 02:53, 15:44 and 18:46 local time were felt felt by local inhabitants.

Reventador (Ecuador): A moderate explosion at the volcano produced an ash plume that rose to flight level 210 (21,000 ft / 6.5 km altitude), a pilot reported.

Volcano Activity Summary for 30 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 27 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 27 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 29 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 30 May 2014)
Gamalama (Halmahera): ash eruptions since 17 Sep (updated 17 Sep 2012)
Grozny (Iturup Island): fumarolic activity (updated 3 Apr 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)
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 30 May 2014)
Sakurajima (Kyushu, Japan): ash venting, intermittent explosions (updated 23 May 2014)
Sangeang Api (Indonesia): major explosive eruption on 30 May 2014 (updated 30 May 2014)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 30 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 29 May 2014)
Sinabung (Sumatra, Indonesia): effusion of viscous lava, steaming, ash emissions (updated 27 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 29 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): continuing weak strombolian activity from NSEC (updated 19 Apr 2014)
Gamkonora (Halmahera): seismic swam, minor ash emissions (updated 27 May 2013)
Heard (Australia, Southern Indian Ocean): possibly lava lake in summit crater (updated 27 May 2014)
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)
Kavachi (Solomon Islands): no eruption since 2007 (updated 24 May 2014)
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)
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 29 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 30 May 2014)
Sangay (Ecuador): degassing (updated 24 May 2013)
Shishaldin (United States, Aleutian Islands): possibly lava fountaining episodes in summit crater (updated 27 May 2014)
Soputan (North Sulawesi, Indonesia): degassing, seismic crisis, eruption warning (updated 1 May 2014)
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, 29 May 2014, 10:50
Shiveluch volcano today (KVERT webcam)
Shiveluch (Kamchatka): The volcano produced a steam and ash plume during today that rose to estimated 20,000 ft (6 km) altitude and drifted east. ... Lees alle
Tue, 27 May 2014, 16:39
Strombolian explosion at Etna's NSEC (Radiostudio7 webcam)
Etna (Sicily, Italy): Weak strombolian activity continues with little variation from the New SE crater. A slightly increasing trend of tremor amplitude can be observed over the past days. ... Lees alle
Sat, 24 May 2014, 21:00
Satellite images showing a discolored water plume from Kavachi (NASA, compiled and annotated by Culture Volcan)
Dukono (Halmahera): A volcanic ash plume extending 60 km west and at estimated 11,000 ft (3.3 km) altitude was spotted by VAAC Darwin this morning. ... Lees alle
Fri, 23 May 2014, 21:00
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. ... Lees alle
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
 

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