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Volcanic activity worldwide 10 Jun 2013: lahars from Fuego, Kamchatka and Alaska updates

Montag Jun 10, 2013 15:35 |

SO2 plume from Nevado del Ruiz yesterday (NOAA)
SO2 plume from Nevado del Ruiz yesterday (NOAA)
The week starts with relatively little volcanic activity worldwide:

Shiveluch in Kamchatka had an explosion last night at 21:02 UTC lasting for 6.5 minutes that sent an ash plume to an estimated altitude of about 30,000 ft (7-8 km), KVERT reports. The eruption was not observed directly, but inferred from seismic data.

Tolbachik (Kamchatka): No significant changes have occurred in the ongoing eruption. Seismic tremor remains stable and suggests that lava flows continue to erupt from the southern fissure.

Kizimen (Kamchatka): The lava dome remains active and continues to grow slowly. KVERT reports incandescence of the volcano summit, hot avalanches on the western and eastern volcanic flanks, and strong and moderate gas-steam activity, associated with medium levels of seismicity.

Bezymianny (Central Kamchatka Depression): No changes in activity have been reported recently. The volcano remains at Aviation Color Code YELLOW, because its lava dome is likely still active. KVERT is unable to distinguish seismic data from Bezymianny from the strong signals from erupting Tolbachik.

Gorely (Southern Kamchatka): Strong steaming and hydrothermal activity continue to produce medium levels of seismicity.

Hachijo-jima (Izu Islands): A shallow (10 km) magnitude 4.4 earthquake occurred about 16 km to the NW of the volcano today.

Veniaminof (Alaska Peninsula, USA): AVO reports continuing seismic tremor and the observation of a steam plume from the volcano, but no other activity has been noted.

Pavlov (Alaska Peninsula, USA): Ash emissions, probably caused by strombolian activity continue to be observed. Seismic tremor and explosion signals accompany the activity. Persistent elevated surface temperatures visible on satellite data suggest that there is some lava effusion as well (in the form of small flows or a new lava dome).
Satellite images from the last day also show an ash plume extending 12 miles (20 km) southeast of the volcano. This direction is consistent with low-level (less than 20,000 ft asl) winds. (AVO)

Guatemala:
Santa María / Santiaguito (Guatemala): A moderate explosion occurred this morning at 05:18 local time, sending an ash plume to 700 m above the crater and drifting SW, where light ash fall occurred in Finca La Florida and Parcelamiento Monte Claro.
The southern lava flow on the dome's flank produced some weak avalanches.

Pacaya (Guatemala): Weak explosive activity has apparently resumed, INSIVUMEH reported.

Fuego (Guatemala): Activity remains relatively weak. During the past 24 hours, INSIVUMEH observed 6 small explosions with ash plumes up to 500 m height. At the moment, the main risk from Fuego is posed by lahars (mud flows).
Following heavy rainfall, unusually strong lahars with fronts of up to 5 meters tall travelled through the Ceniza ravine on 8 June, damaging the road that connects Siquinala to Rochela, San Andrés Osuna, and Ceilán. Deposits of 2-3 meters were left containing blocks of up to 3 meter in size.
... [read more]

Nevado del Ruiz (Colombia): Strong degassing is visible as a large SO2 plume on satellite data. Seismic recordings show many mostly long-period quakes, typical of internal fluid movements.

Copahue (Chile/Argentina): Seismic and degassing activity have decreased, although SERNAGEOMIN maintains alert level "orange". A total of 120 quakes, mostly near the surface, were counted during 8-9 June. No volcanic tremor was detected. A white steam and gas plume was rising 300 m from the crater.
(SERNAGEOMIN report from 9 June)

Volcano Activity Summary for 10 Jun 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 2 May 2013)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 7 Jun 2013)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 3 Jun 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)
Fuego (Guatemala): weak to moderate strombolian activity (updated 10 Jun 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 10 Jun 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 29 May 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 3 Jun 2013)
Pavlov (Alaska Peninsula, USA): lava fountaining, lava flow on NW flank (updated 10 Jun 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 7 Jun 2013)
Santa María / Santiaguito (Guatemala): advancing viscous active lava flows, weak occasional explosions (updated 10 Jun 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 10 Jun 2013)
Stromboli (Eolian Islands, Italy): continuing lava overflows (updated 6 Jun 2013)
Tinakula (Santa Cruz Islands, Solomon Islands): increased activity at the volcano (updated 8 Feb 2013)
Tolbachik (Kamchatka): effusion of fluid lava flows (updated 10 Jun 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 29 May 2013)

Eruption warning / minor activity:

Bezymianny (Central Kamchatka Depression): slow lava flow extrusion from dome (updated 10 Jun 2013)
Chirpoi (Kurile Islands, Russia): thermal anomaly at summit crater, steaming (updated 9 Jan 2013)
Copahue (Chile/Argentina): ash venting, strong degassing (updated 10 Jun 2013)
Dieng (Central Java): increased degassing (updated 28 Mar 2013)
Etna (Sicily, Italy): ash emissions and strombolian activity at New SE crater (updated 7 Jun 2013)
Galeras (Colombia): sporadic ash emissions (updated 17 May 2013)
Gamkonora (Halmahera): seismic swam, minor ash emissions (updated 27 May 2013)
Gaua (Vanuatu): possible ash eruption on 29 april (updated 29 Apr 2013)
Ibu (Halmahera, Indonesia): growing lava dome, seismic unrest (updated 9 Jun 2013)
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)
Kerinci (Sumatra): occasional ash explosions (updated 5 Jun 2013)
Kikai (Ryukyu Islands): steaming at summit crater of Iodake, occasional weak glows (updated 5 Jun 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)
Mayon (Luzon Island): phreatic explosions (updated 3 Jun 2013)
Medvezhia (Kurile Islands, Russia): strong steaming, thermal anomaly (updated 17 Jan 2013)
Nevado del Ruiz (Colombia): sporadic ash emissions (updated 10 Jun 2013)
Nyamuragira (DRCongo): Fort dégazage du cratère sommital (updated 27 Apr 2012)
Pacaya (Guatemala): strombolian explosions from Mackenney crater, short-lived lava flow on 30 May (updated 10 Jun 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): strong degassing, ash explosions, growing lava dome (updated 8 Jun 2013)
Rasshua (Central Kuriles)
Reventador (Ecuador): growing lava dome, lava flows on upper flank, frequent explosions (updated 25 May 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): small ash explosions on 7 June (updated 8 Jun 2013)
Sangay (Ecuador): no recent explosions reported (updated 24 May 2013)
Sangeang Api (Indonesia): degassing, increased seismic activity (updated 21 May 2013)
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): ash venting, strong degassing (updated 22 May 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)

Vorherige Nachrichten
Current seismic recording from Veniaminof (VNHG station, AVO)
Sonntag, Jun 09, 2013
Veniaminof (Alaska Peninsula, USA): Over the past 2 days, AVO has detected gradually increasing seismic tremor beneath Veniaminof and therefore raised the Aviation Color Code to Yellow and the Volcano Alert Level to Advisory. ... [mehr]
Seismic recording from San Cristobal volcano yesterday (CRIN station, INETER)
Samstag, Jun 08, 2013
Pavlov (Alaska Peninsula, USA): Weak eruptive activity continues, producing small steam and ash plumes drifting at about 18-20,000 ft (5-6 km) altitude SSE as detected on satellite data (VAAC Anchorage). ... [mehr]

Freitag, Jun 07, 2013
Etna (Sicily, Italy): During a visit to the summit craters today, we could observe a new hot fumarole in the western pit of the Bocca Nuova, increased bluish degassing from a vent in the saddle between the old and new SE crater and hear deep-seated explosions inside the NE crater. ... [mehr]
Donnerstag, Jun 06, 2013
Stromboli (Eolian Islands, Italy): When observed during 3-6 June, the volcano was at normal levels of activity which had not changed significantly since our last visit 2 weeks ago. On the crater terrace, about 7 active vents were present, with eruptions every about 15-20 minutes: the two vents in the NW crater sometimes erupted simultaneously, one with low ejections of blocks, scoria and ash, the other with loud turbine-like jets of gas and lava fragments that often reached about 250 m height. The hornito at the NW crater rim was not seen erupting. ... [mehr]
Plume from Kikai on Aqua satellite image at  04h05 UTC (NASA, via Blog Culture Volcan)
Mittwoch, Jun 05, 2013
Tolbachik (Kamchatka): Activity continues with little changes, although the slow trend of decreasing seismic activity persists. A small lava lake 20 m across and weak strombolian activity were recently observed by Russian volcanologists who visited the site. Lava flows continue to be alimented and spread mainly to the SE. ... [mehr]

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