Volcanic activity worldwide 30 Jan 2013

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Source: Volcano Discovery - 1/30/13
 

Current seismic signal from Stromboli (ST8 station, INGV)

Current seismic signal from Stromboli (ST8 station, INGV)

Webcam image of Etna during the onset of activity from Bocca Nuova

Webcam image of Etna during the onset of activity from Bocca Nuova

Uplift at Santorini during the 2011-2012 unrest

Uplift at Santorini during the 2011-2012 unrest

Depth vs time of quakes (Jan 2013) in the TFZ

Depth vs time of quakes (Jan 2013) in the TFZ

Tremor at Tongariro during the past 30 days (WT station, GeoNet)

Tremor at Tongariro during the past 30 days (WT station, GeoNet)

Current seismic signal from White Island (GeoNet)

Current seismic signal from White Island (GeoNet)

Last night's seismic recording from San Cristobal volcano (CRIN station, INETER)

Last night's seismic recording from San Cristobal volcano (CRIN station, INETER)

Last night's seismic recording from Masaya volcano (MASN station, INETER)

Last night's seismic recording from Masaya volcano (MASN station, INETER)

Copahue with a steam plume this morning (SERNAGEOMIN webcam)

Copahue with a steam plume this morning (SERNAGEOMIN webcam)

Stromboli (Eolian Islands, Italy): Activity has generally decreased over the past days, with less tremor and weaker explosion signals. Today, tremor seems to be stronger again.

Etna (Sicily, Italy): Vigorous eruptive activity has started at the Bocca Nuova crater and produced a short phase of violent strombolian activity.

Santorini (Cyclades, Greece): (30 Jan) According to the latest seismic and satellite (InSAR and GPS) data, the uplift at the Santorini volcano (2011-2012) has has come to an end.
In a recent press release, the Institute for Astronomy, Astrophysics, Space Applications & Remote Sensing and the Dionysos Satellite Observatory, published their results of follow up studies in Santorini with the collaboration of MIT.
For the first time, the severe deformation (more than 10 cm in some areas) that mainly affected Nea Kameni and the northeastern caldera during 2011-early 2012, has been accurately quantified using advanced remote sensing techniques (PSI and SBAS) with satellite data and extended geodetic measurements (cGPS).
... [read more]

Tjörnes Fracture Zone (North of Iceland): Earthquakes continue with typically 10-20 quakes recorded in the TFZ. The swarm that had started 20 Oct last year has now been going on for over 3 months and shows no signs of stopping.

Tolbachik (Kamchatka): (30 Jan) The eruption continues unchanged. Russia Today published a recent (28 Jan) video showing the lava fountaining and flows from the southern fissure:



Taal (Luzon, Philippines): Elevated seismic activity continues. During yesterday-today, PHILVOLCS detected 13 volcanic earthquakes.
Two of these events, which occurred at 7:03 and 7:04 PM yesterday, were felt at intensity II and accompanied by rumbling sound as reported by residents of Barangay Calauit located at the southeast sector of the volcano island.

Tongariro (North Island, New Zealand): Some small earthquakes have appeared again today, but generally, seismic activity has been showing a decreasing trend over the past weeks.

White Island (New Zealand): (30 Jan) Activity remains elevated and fluctuates between stronger and weaker phases. In its latest bulletin, GNS reports that the hot lake has dried out and a small tuff cone has started to form on the former floor of the lake:
"The active vent continues to produce vigorous bursts of mud, rock, steam and gas from 50-100 m high. Ash is not being carried into the plume. This activity is intermittent as is the seismic activity. Current activity is not sufficient for Volcanic Alert Level 2.
"Larger explosions of mud, rock and perhaps molten sulphur are always possible and occur with little or no warning. A greater than usual hazard does exist for visitors to the island as a result of the current level of volcanic activity.
... [read more]

Santa María / Santiaguito (Guatemala): Activity today remained low. Only few and very weak explosions and small block avalanches from the active flows were reported by INSIVUMEH.

Fuego (Guatemala): Explosions have been becoming more frequent (now 12 during the past day vs a previous average of only 5). They produce light gray ash plumes drifting south and SE for about 5 km. The lava flow is still weakly active, but was only 150 m long this morning.

San Cristobal (Nicaragua): (30 Jan) Numerous tiny volcanic earthquakes and weak volcanic tremor reflect internal unrest.

Masaya (Nicaragua): (30 Jan) Seismic activity remains at more or less stable levels, showing normal background activity of continuous internal fluid movements.

Copahue (Chile/Argentina border): (30 Jan) Seismic and degassing activity is on the increase, Sernageomin reported in its latest bulletin (29 Jan). During 28-29 Jan, a total of 345 volcanic earthquakes (plus more than 400 not counted ones because below threshold) and 6 hours of volcanic tremor were recorded.
The seismic swarm was accompanied by an increase in the degassing activity, creating a column of 500 m during pulses of more intense activity. No glow or ash emissions were seen.

Volcano Activity Summary for 30 Jan 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 25 Jan 2013)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 27 Jan 2013)
Colima (Western Mexico): rockfalls, intermittent ash emissions (updated 29 Jan 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): intermittent strombolian activity from Bocca Nuova and New SE crater (updated 28 Jan 2013)
Fuego (Guatemala): effusion of la lava flow, small strombolian explosions (updated 30 Jan 2013)
Gamalama (Halmahera): ash eruptions since 17 Sep (updated 17 Sep 2012)
Karkar (Northeast of New Guinea): possible ash eruption on 1 February (updated 29 Jan 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 26 Jan 2013)
Kizimen (Kamchatka): growing lava dome, lava flow on eastern flank, avalanches (updated 29 Jan 2013)
Lokon-Empung (North Sulawesi, Indonesia): almost daily explosions (updated 25 Jan 2013)
Manam (Papua New Guinea): occasional ash emissions (updated 30 Jan 2013)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 28 Jan 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 29 Jan 2013)
Raung (East Java): mild strombolian eruption inside the crater (updated 8 Nov 2012)
Reventador (Ecuador): growing lava dome, occasional explosions, strong tremor (updated 29 Jan 2013)
Sakurajima (Kyushu): 0-3 weak to moderate vulcanian-style explosions per day, ash clouds up to 2-3 km altitude (updated 28 Jan 2013)
Santa María / Santiaguito (Guatemala): advancing viscous active lava flows, weak occasional explosions (updated 30 Jan 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 21 Jan 2013)
Stromboli (Eolian Islands, Italy): strong strombolian explosions, intermittent small lava overspills (updated 30 Jan 2013)
Tolbachik (Kamchatka): effusion of fluid lava flows (updated 30 Jan 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 2 Aug 2012)

Eruption warning / minor activity:

Bagana (Bougainville Island, Papua New Guinea): occasional ash explosions (updated 24 Jan 2013)
Bezymianny (Central Kamchatka Depression): slow lava flow extrusion from dome (updated 11 Jan 2013)
Chirpoi (Kurile Islands, Russia): thermal anomaly at summit crater, steaming (updated 9 Jan 2013)
Copahue (Chile/Argentina border): seismic swarms (updated 30 Jan 2013)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 7 Nov 2012)
Galeras (Colombia): degassing, occasional ash venting (updated 23 Jan 2013)
Gorely (Southern Kamchatka): strong steaming (updated 23 Jan 2013)
Heard (Australia, Southern Indian Ocean): thermal anomaly at summit crater (updated 30 Dec 2012)
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 27 Jan 2013)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 29 Jan 2013)
Kirishima (Kyushu): degassing, slightly increased seismic activity (updated 30 Jul 2012)
Kliuchevskoi (Kamchatka): strombolian activity in summit crater (updated 29 Jan 2013)
Krakatau (Sunda Strait, Indonesia): strong degassing (updated 1 Oct 2012)
Langila (New Britain, Papua New Guinea): occasional ash explosions (updated 25 Sep 2012)
Marapi (Western Sumatra, Indonesia): frequent small ash emissions (updated 11 Dec 2012)
Medvezhia (Kurile Islands, Russia): strong steaming, thermal anomaly (updated 17 Jan 2013)
Nevado del Huila (Colombia): degassing (updated 26 Jan 2013)
Nevado del Ruiz (Colombia): steaming, low-level seismic unrest (updated 23 Jan 2013)
Nyamuragira (DRCongo): strong degassing from summit crater (updated 27 Apr 2012)
Pagan (Mariana Islands): steaming, thermal anomaly (updated 12 Dec 2012)
Poas (Costa Rica): Small phreatic explosions on 29 October (updated 30 Oct 2012)
Popocatépetl (Central Mexico): steaming, about 1 weak explosion per hour, crater glow (updated 29 Jan 2013)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): ash explosions (updated 27 Jan 2013)
Rincón de la Vieja (Costa Rica): small phreatic eruption on 11 April (updated 6 Oct 2012)
Sangay (Ecuador): no recent explosions reported (updated 26 Jan 2013)
Soputan (North Sulawesi, Indonesia): new eruption on 18 (updated 9 Nov 2012)
Soufriere Hills (Montserrat, West Indies (UK)): occassional small pyroclastic flows by rock falls (updated 27 Sep 2012)
Suwanose-jima (Ryukyu Islands): steaming, occasional weak eruptions, elevated seismicity (updated 3 Oct 2012)
Tinakula (Santa Cruz Islands, Solomon Islands): steaming, possibly ash eruptions (updated 13 Nov 2012)
Tungurahua (Ecuador): occasional ash explosions (updated 28 Jan 2013)
Turrialba (Costa Rica): vigorous steaming, occasional phreatic explosions (updated 18 Dec 2012)
Ulawun (New Britain, Papua New Guinea): ash emissions and rumblings heard (updated 2 Jan 2013)
Villarrica (Central Chile): weak deep-seated explosive activity, steaming (updated 20 Jan 2013)

Restless / uncertain activity:

Aoba (Vanuatu): steaming, degassing (updated 26 Dec 2012)
Arenal (Costa Rica): continua la fase de reposo, emisión de gases (updated 30 Dec 2012)
Askja (Central Iceland): increased seismicity (updated 14 Dec 2012)
Bárdarbunga (Iceland): earthquake swarm (updated 26 Jan 2013)
Bromo (East Java, Indonesia): seismic unrest, steaming (updated 3 Oct 2012)
Campi Flegrei (Phlegrean Fields) (Italy): sciame sismico (updated 7 Jan 2013)
Chaitén (Southern Chile and Argentina)
Changbaishan (China / North Korea border): increased seismic and degassing activity, deformation (updated 29 Sep 2012)
Cleveland (Aleutian Islands, Alaska): elevated temperature at summit crater (updated 27 Jan 2013)
Concepción (Nicaragua): seismic unrest (updated 23 Jan 2013)
Cumbal (Colombia): continuing seismic swarms (updated 23 Jan 2013)
El Hierro (Canary Islands, Spain): elevated number of earthquakes (updated 26 Jan 2013)
Gamkonora (Halmahera): alert level lowered to yellow (updated 14 Sep 2012)
Gaua (Vanuatu)
Hekla (Iceland): Small but very shallow 1.2 magnitude earthquake at 21:13 UTC on 15 Feb 2012 (updated 14 Sep 2012)
Ijen (East Java, Indonesia): increased steaming and seismicity, alert level raised on 24 July (updated 17 Apr 2012)
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)
Kuchinoerabu-jima (Ryukyu Islands)
Kverkfjöll (Eastern Iceland): occasional small earthquake swarms (updated 21 Oct 2012)
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 21 Jan 2013)
Masaya (Nicaragua): elevated seismic activity (updated 30 Jan 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)
Mt Fuji (Honshu): earthquakes at the end of January and in February 2012, new craters reported, increasing fumarolic activity (updated 9 Sep 2012)
Pacaya (Guatemala): seismic unrest (updated 29 Jan 2013)
Papandayan (West Java): alert status back to 2 (updated 1 Feb 2012)
Reclus (Southern Chile and Argentina): increased number of earthquakes (updated 31 Aug 2012)
Rinjani (Lombok)
Ruapehu (North Island): seismic unrest (updated 24 Jan 2013)
San Cristobal (Nicaragua): seismic unrest (updated 30 Jan 2013)
San Miguel (El Salvador): seismic unrest (updated 25 Jan 2013)
Sangeang Api (Indonesia): occasional weak steaming (updated 3 Jan 2013)
Sinabung (Sumatra)
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): Actividad volcán Sotará del 3 al 9 de octubre de 2012 (updated 23 Jan 2013)
Taal (Luzon, Philippines): degassing, elevated seismic activity (updated 30 Jan 2013)
Talang (Sumatra)
Telica (Nicaragua): seismic unrest (updated 15 Nov 2012)
Tiatia (Kunashir Island): weak thermal anomaly (updated 6 Sep 2012)
Tjörnes Fracture Zone (North of Iceland): continuing earthquake swarm (updated 30 Jan 2013)
Tongariro (North Island, New Zealand): strong steaming from Te Maari craters, slightly elevated seismic activity (updated 30 Jan 2013)
White Island (New Zealand): vigorous degassing, strong hydrothermal activity (updated 30 Jan 2013)

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