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Volcanic activity worldwide 5-6 May 2013: eruptions at Cleveland, Tungurahua, Lokon, Bagana

Monday May 06, 2013 09:25 AM |

MODIS hot spot data for Paluweh island, showing the hot pyroclastic deposits S, E and W of the dome (MODIS, Univ. Hawaii)
MODIS hot spot data for Paluweh island, showing the hot pyroclastic deposits S, E and W of the dome (MODIS, Univ. Hawaii)
Eruption plume from Cleveland yesterday (AVO / USGS)
Eruption plume from Cleveland yesterday (AVO / USGS)
Current seismic recording at Pacaya (PCG station, INSIVUMEH)
Current seismic recording at Pacaya (PCG station, INSIVUMEH)
Seismic recording this morning at Nevado del Ruiz (OLL station, INGEOMINAS)
Seismic recording this morning at Nevado del Ruiz (OLL station, INGEOMINAS)
MODIS hot spot data (past 2 days) for Reventador volcano (ModVolc, Univ. Hawaii)
MODIS hot spot data (past 2 days) for Reventador volcano (ModVolc, Univ. Hawaii)
SO2 plume from Tungurahua volcano yesterday (NOAA)
SO2 plume from Tungurahua volcano yesterday (NOAA)
Bagana (Bougainville Island, Papua New Guinea): Eruptions have intensified at the volcano. Over the past 2 days, several explosions produced ash plumes rising to about 7,000 ft (2.1 km) altitude and drifting 30-45 nautical miles to the W and NW (VAAC Darwin).

Batu Tara (Sunda Islands, Indonesia): An explosion produced an ash plume rising to 7,000 ft (2.1 km) altitude today.

Paluweh (off Flores Island, Indonesia): The lava dome remains relatively active and produces frequent explosions and/or hot rock avalanches. Hot deposits from these can be seen on MODIS satellite data on the eastern, southern and western flank of the dome. Several ash plumes rising to altitudes of about 7,000 ft (2.1 km) were detected in the past days.

Papandayan (West Java): Increased seismic activity was detected at the volcano and VSI raised the alert level to 3 out of 4 ("Siaga", "warning") yesterday.
Sudden phreatic explosions could occur with little warning at the volcano and present a significant hazard to visitors to the crater, which is a popular tourist site due to its varied, intense hydrothermal activity and colorful active fumaroles.

Lokon-Empung (North Sulawesi, Indonesia): Another explosion occurred yesterday evening. It was heard in up to 6 km distance and incandescent bombs were ejected to 200 m distance from the Tompaluan crater.
The eruption was preceded by an increase in seismic activity starting Saturday night, the local volcano observatory reported.
... [read more]

Cleveland (Aleutian Islands, Alaska): After the initial explosion 2 days ago, continuous small eruptions produced a steam and ash plume yesterday and decreased in intensity again today. The activity of the volcano, which is not monitored on ground, was detected by satellite data and infrasonic tremor measured by ground-coupled airwaves on the nearby Okmok seismic network, 120 km (80 mi) to the northeast.
A faint plume extended eastward below 15,000 ft. Satellite data also continue to show highly elevated surface temperatures at the summit.
... [read more]

Popocatépetl (Central Mexico): No changes occurred in the volcano's slow effusive/explosive activity. Emissions of steam and gas, with minor ash contents, have been at rates of less than 1 per hour during the previous days, but continuing lava glow can be seen from the summit.

Santa María / Santiaguito (Guatemala): The lava dome has remained relatively calm recently with few and mostly weak explosions every now and then, and little activity from the blocky lava flows on the flanks of the Caliente dome.

Pacaya (Guatemala): Weak strombolian activity probably continues. It can not always be observed, but only heard and shows on the seismic recording.

Fuego (Guatemala): Activity remained at low level, characterized by few (6 during yesterday) strombolian-type explosions that produce gray ash plumes rising 300-500 m above the crater.

Nevado del Ruiz (Colombia): After a short pause, a new seismic swarm, possibly indicating yet another pulse of magma intrusion, started yesterday at the volcano. The largest quake was a magnitude 2.9 event at 19:28 local time at 5.4 km depth beneath the Arenas crater. It was felt around the volcano.

Reventador (Ecuador): Activity has remained moderate with occasional explosions and possibly the emplacement of a hot avalanche or lava flow on the eastern flank, where a new hot spot on the latest MODIS satellite data can be seen, in addition to the summit where a lava dome is active.

Tungurahua (Ecuador): A gradual increase in eruptive activity is evident. Near continuous ash and steam emissions are interrupted by cannon-like explosions that produce ash plumes rising up to 2-3 km height and produce light ash falls in the areas around the volcano. At night, strombolian activity can be seen from the summit.
A significant SO2 plume can be seen on satellite data drifting to the NW.

Volcano Activity Summary for 6 May 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 2 May 2013)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 6 May 2013)
Bas Dong Nai (Vietnam)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 6 May 2013)
Cleveland (Aleutian Islands, Alaska): continuous small eruptions (updated 6 May 2013)
Colima (Western Mexico): frequent explosions from growing lava dome, glowing rockfalls and small pyroclastic flows (updated 25 Apr 2013)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 2 May 2013)
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)
Etna (Sicily, Italy): ash emissions and strombolian activity at New SE crater (updated 27 Apr 2013)
Fuego (Guatemala): weak to moderate strombolian activity (updated 6 May 2013)
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): possible lava lake in summit crater (updated 2 May 2013)
Karkar (Northeast of New Guinea): possible ash eruption on 1 February (updated 15 Mar 2013)
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 20 Apr 2013)
Kizimen (Kamchatka): growing lava dome, lava flow on eastern flank, avalanches (updated 25 Apr 2013)
Lokon-Empung (North Sulawesi, Indonesia): frequent small to moderate ash explosions (updated 6 May 2013)
Manam (Papua New Guinea): strombolian explosions, lava flow on southern flank (updated 16 Apr 2013)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 20 Apr 2013)
Ol Doinyo Lengai (Tanzania): spattering and lava flows of natrocarbonatite lava inside the summit crater (updated 9 Dec 2012)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 6 May 2013)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): ash emissions, small explosions (updated 14 Mar 2013)
Sakurajima (Kyushu, Japan): 0-3 weak to moderate vulcanian-style explosions per day, ash clouds up to 2-3 km altitude (updated 3 May 2013)
Sangay (Ecuador): no recent explosions reported (updated 27 Apr 2013)
Santa María / Santiaguito (Guatemala): advancing viscous active lava flows, weak occasional explosions (updated 6 May 2013)
Semeru (East Java, Indonesia): growing lava dome, ash venting and small to moderate explosions (updated 25 Jul 2012)
Shiveluch (Kamchatka): slow dome growth, occasional explosions and pyroclastic flows (updated 22 Apr 2013)
Stromboli (Eolian Islands, Italy): continuing lava overflows (updated 2 May 2013)
Tinakula (Santa Cruz Islands, Solomon Islands): increased activity at the volcano (updated 8 Feb 2013)
Tolbachik (Kamchatka): effusion of fluid lava flows (updated 1 May 2013)
Tungurahua (Ecuador): ash emissions, explosions (updated 6 May 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 8 Apr 2013)

Eruption warning / minor activity:

Bezymianny (Central Kamchatka Depression): slow lava flow extrusion from dome (updated 10 Mar 2013)
Chirpoi (Kurile Islands, Russia): thermal anomaly at summit crater, steaming (updated 9 Jan 2013)
Dieng (Central Java): increased degassing (updated 28 Mar 2013)
Gaua (Vanuatu): possible ash eruption on 29 april (updated 29 Apr 2013)
Gorely (Southern Kamchatka): strong steaming (updated 10 Mar 2013)
Ibu (Halmahera, Indonesia): Thermal anomalies indicate continuing eruption, possible lava dome growth (updated 18 Oct 2012)
Karangetang (Siau Island, Sangihe Islands, Indonesia): hot spot visible at the summit (updated 9 Apr 2013)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 4 Apr 2013)
Kirishima (Kyushu): degassing, slightly increased seismic activity (updated 30 Jul 2012)
Krakatau (Sunda Strait, Indonesia): occasional explosions (updated 1 Oct 2012)
Langila (New Britain, Papua New Guinea): occasional ash explosions (updated 11 Feb 2013)
Marapi (Western Sumatra, Indonesia): intermittent mild ash explosions (updated 17 Mar 2013)
Medvezhia (Kurile Islands, Russia): strong steaming, thermal anomaly (updated 17 Jan 2013)
Nevado del Ruiz (Colombia): earthquake swarm, strong steaming and ash venting (updated 6 May 2013)
Nyamuragira (DRCongo): Fort dégazage du cratère sommital (updated 27 Apr 2012)
Pacaya (Guatemala): weak strombolian activity from Mackenney crater (updated 6 May 2013)
Pagan (Mariana Islands): steaming, thermal anomaly (updated 12 Dec 2012)
Papandayan (West Java): strong hydrothermal activity, increased seismicity (updated 6 May 2013)
Poas (Costa Rica): Small phreatic explosions on 29 October (updated 1 May 2013)
Popocatépetl (Central Mexico): steam and ash emissions (updated 6 May 2013)
Rasshua (Central Kuriles)
Reventador (Ecuador): growing lava dome, lava flows on upper flank, frequent explosions (updated 6 May 2013)
Rincón de la Vieja (Costa Rica): small phreatic eruption on 11 April (updated 6 Oct 2012)
Sacabaya (Northern Chile, Bolivia and Argentina)
Soputan (North Sulawesi, Indonesia): new eruption on 18 (updated 22 Apr 2013)
Suwanose-jima (Ryukyu Islands): steaming, occasional weak eruptions, elevated seismicity (updated 23 Feb 2013)
Turrialba (Costa Rica): vigorous steaming, occasional phreatic explosions (updated 17 Mar 2013)
Ulawun (New Britain, Papua New Guinea): ash emissions and rumblings heard (updated 23 Mar 2013)
Villarrica (Central Chile): weak deep-seated explosive activity, steaming (updated 20 Jan 2013)

Restless / uncertain activity:

Aoba (Vanuatu): minor phreatic activity from Lake Vui (updated 8 Feb 2013)
Askja (Central Iceland): increased seismicity (updated 27 Mar 2013)
Bárdarbunga (Iceland): earthquake swarm (updated 26 Jan 2013)
Barren Island (Indian Ocean)
Bromo (East Java, Indonesia): seismic unrest, steaming (updated 3 Oct 2012)
Campi Flegrei (Phlegrean Fields) (Italy): swarm of small earthquakes related to bradyseismus (updated 6 Feb 2013)
Chaitén (Southern Chile and Argentina)
Changbaishan (China / North Korea border): increased seismic and degassing activity, deformation (updated 29 Sep 2012)
Concepción (Nicaragua): seismic unrest (updated 14 Apr 2013)
Cumbal (Colombia): continuing seismic swarms (updated 2 May 2013)
El Hierro (Canary Islands, Spain): strong seismic swarm west of the island, inflation (updated 5 Apr 2013)
Galeras (Colombia): ash emissions, small explosions (updated 2 May 2013)
Gamkonora (Halmahera): alert level lowered to yellow (updated 14 Sep 2012)
Guntur (West Java)
Hakone (Honshu)
Hekla (Iceland): strong inflation (updated 30 Apr 2013)
Ijen (East Java, Indonesia): increased steaming and seismicity, alert level raised on 24 July (updated 3 Apr 2013)
Irazu (Costa Rica)
Iwo-jima (Volcano Islands): weak degassing, occasional volcanic tremors (updated 22 Jan 2013)
Katla (Southern Iceland): occasional seismic swarms (updated 17 Aug 2012)
Kerinci (Sumatra)
Ketoi (Kurile Islands, Russia)
Kliuchevskoi (Kamchatka): weak seismic activity (updated 19 Mar 2013)
Kuchinoerabu-jima (Ryukyu Islands)
Kverkfjöll (Eastern Iceland): occasional small earthquake swarms (updated 21 Oct 2012)
Laguna del Maule (Central Chile): seismic unrest, deformation (updated 20 Apr 2013)
Lascar (Northern Chile): steam plumes with slight ash content (updated 14 Apr 2013)
Lewotobi (Flores): steaming and seismic activity decreased, alert lowered back to 1 (out of 4) (updated 5 Apr 2012)
Loihi (United States, Hawaiian Islands): Magnitude 4.2 earthquake at Loihi (updated 26 Nov 2012)
Machin (Colombia): elevated seismic activity (updated 14 Apr 2013)
Masaya (Nicaragua): elevated seismic activity (updated 23 Apr 2013)
Mauna Loa (Big Island, Hawai'i)
Mayon (Luzon Island): steaming, increased earthquakes, slight inflation (updated 11 Nov 2012)
Merapi (Central Java): Dome collapse sometime in October (updated 21 Oct 2012)
Miyake-shima (Izu Islands)
Mt Fuji (Honshu): earthquakes at the end of January and in February 2012, new craters reported, increasing fumarolic activity (updated 4 Feb 2013)
Nevado del Huila (Colombia): degassing (updated 31 Jan 2013)
Raung (East Java): mild strombolian eruption inside the crater (updated 6 Apr 2013)
Reclus (Southern Chile and Argentina): increased number of earthquakes (updated 31 Aug 2012)
Rinjani (Lombok)
Ruapehu (North Island): seismic unrest (updated 13 Apr 2013)
Sabancaya (Peru): degassing, earthquake swarm (updated 7 Apr 2013)
San Cristobal (Nicaragua): seismic unrest (updated 25 Apr 2013)
San Miguel (El Salvador): seismic unrest (updated 6 Apr 2013)
Sangeang Api (Indonesia): occasional weak steaming (updated 3 Jan 2013)
Sinabung (Sumatra, Indonesia)
Siple (Marie Byrd Land, Western Antarctica): possible steaming detected on 20 June (updated 28 Jun 2012)
Sirung (Pantar Island, Indonesia ): steaming and elevated seismicity (updated 27 May 2012)
Slamet (Central Java): degassing, strong fumaroles (updated 9 Aug 2012)
Sotará (Colombia): weak seismic unrest (updated 31 Jan 2013)
Soufriere Hills (Montserrat, West Indies (UK)): seismic unrest, occasional light ash venting (updated 21 Mar 2013)
Taal (Luzon, Philippines): degassing, elevated seismic activity (updated 6 Apr 2013)
Tahalra Volcanic Field (Algeria): 2 km deep volcanic earthquake on 14 february (updated 17 Feb 2013)
Talang (Sumatra)
Tambora (Sumbawa): aucune activité ces derniers mois, l'alerte est revenue à la normale (updated 6 Apr 2013)
Telica (Nicaragua): ongoing seismic swarm (updated 1 May 2013)
Tiatia (Kunashir Island): weak thermal anomaly (updated 6 Sep 2012)
Tjörnes Fracture Zone (North of Iceland): continuing earthquake swarm (updated 8 Apr 2013)
To-shima (Izu Islands): seismic swarm (updated 10 Mar 2013)
Tongariro (North Island, New Zealand): strong steaming from Te Maari craters, slightly elevated seismic activity (updated 19 Feb 2013)
Torfajökull (Iceland): earthquake swarm (updated 17 Feb 2013)

Vorig nieuws
Saturday, May 04, 2013
Cleveland (Aleutian Islands, Alaska): A possible explosion occurred this morning at the volcano at 5:00AM AKDT (13:00 UTC) by AVO infrasound recorders. The infrasound signals suggest that this was a relatively short duration, low-level explosion. No eruption cloud has been detected in available satellite views. AVO received no other reports of activity. (USGS / AVO) ... [meer...]
SO2 plume from Popocatépetl yesterday (NOAA)
Friday, May 03, 2013
Sakurajima (Kyushu, Japan): Since 1 May, activity has been increasing again from relatively low levels during the weeks before. Over the past 3 days, several explosions have produced ash plumes rising to 10,000 ft (3 km) altitude and on most days, there have been 3-4 daily explosions (for Sakurajima, this is a large number). ... [meer...]
Thermal webcam image of the crater area of Stromboli (INGV)
Thursday, May 02, 2013
Stromboli (Eolian Islands, Italy): Lava continues to intermittently flow over and out of vents at the rim and the base of the NE crater. Yesterday, the active flow front had reached about half way down the Sciara, local guides reported. ... [meer...]
Lava overflow on the Sciara del Fuoco (INGV thermal webcam)
Wednesday, May 01, 2013
Stromboli (Eolian Islands, Italy): After decreasing a bit yesterday, the overflow of lava from the NE vents has gained in strength this morning again, accompanied by constant rockfalls, relatively strong explosions and higher tremor. ... [meer...]
GPS-measured deformation of HEKR station (Univ. Iceland), north of the volcano
Tuesday, Apr 30, 2013
Hekla (Iceland): The famous Icelandic volcano is showing further signs that indicate an eruption could occur in a near future. Significant rapid inflation, concentrated in the northern part of the volcano, has been detected since early April and likely represents accumulation of rising magma underneath. ... [meer...]

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