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Smithsonian / USGS Weekly Volcanic Activity Report

You are currently viewing Archived reports for the week of 12 February-18 February 2014.


















 Activity for the week of 12 February-18 February 2014

The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program. Updated by 2300 UTC every Wednesday, notices of volcanic activity posted on these pages are preliminary and subject to change as events are studied in more detail. This is not a comprehensive list of all of Earth's volcanoes erupting during the week, but rather a summary of activity at volcanoes that meet criteria discussed in detail in the "Criteria and Disclaimers" section. Carefully reviewed, detailed reports on various volcanoes are published monthly in the Bulletin of the Global Volcanism Network.

Name Location Activity
Asosan Kyushu (Japan) New
Kelut Eastern Java (Indonesia) New
Shishaldin Fox Islands (USA) New
Tungurahua Ecuador New
Ubinas Peru New

Aira Kyushu (Japan) Ongoing
Bagana Bougainville (Papua New Guinea) Ongoing
Chirinkotan Kuril Islands (Russia) Ongoing
Chirpoi Kuril Islands (Russia) Ongoing
Dukono Halmahera (Indonesia) Ongoing
Etna Sicily (Italy) Ongoing
Fuego Guatemala Ongoing
Karymsky Eastern Kamchatka (Russia) Ongoing
Kilauea Hawaiian Islands (USA) Ongoing
Santa Maria Guatemala Ongoing
Sheveluch Central Kamchatka (Russia) Ongoing
Sinabung Indonesia Ongoing
Suwanosejima Ryukyu Islands (Japan) Ongoing


New Activity / Unrest


Volcano index photo  Asosan  | Kyushu (Japan)  | 32.884°N, 131.104°E  | Elevation 1592 m

JMA reported that a very small explosion from Asosan's Nakadake Crater occurred on 16 February. An off-white plume rose 300 m above the crater rim and drifted S. The Alert Level remained at 2 (on a scale of 1-5).

Source: Japan Meteorological Agency (JMA)



Volcano index photo  Kelut  | Eastern Java (Indonesia)  | 7.93°S, 112.308°E  | Elevation 1731 m

PVMBG reported that at 2115 on 13 February the Alert Level for Kelut was raised to 4 (on a scale of 1-4). Visitors and residents were prohibited from approaching the crater within a 10-km radius. BNPB reported that a major eruption occurred less than two hours later at 2250, followed by another large explosion at 2330. Ash plumes rose to an altitude of 17 km (55,800 ft) a.s.l. and caused ashfall in areas NE, NW, and W, as far as Pacitan (133 km WSW), Kulon Progo (236 km W), Temanggung (240 km WNW), and Banyuwangi (228 km E). Forty flights from the Juanda (81 km NE), Adi Sucipto Yogya (208 km W), and Adi Sumarmo Solo (175 km WNW) airports were cancelled. News articles reported that flights in and out of seven airports were cancelled or rerouted. Ashfall and tephra 5-8 cm in diameter caused structures to collapse, including schools, homes, and businesses.

On 14 February BNPB reported that the eruption had killed four people: one died due to a collapsing wall, one from ash inhalation, and two from “shortness of breath”. All four victims lived within 7 km of Kelut in the regency of Malang, an area that received ashfall up to 20 cm thick. By 0600 the number of displaced people reached 100,248, but the report also noted that activity had declined. A report issued later that day noted that 76,388 people remained evacuated. Seismicity continued to decline and was at moderate levels during 15-17 February. An 18 February report noted that a total of seven people in Malang had died, and that the ashfall had affected cattle health and dairy production, farms, and the water supply. Damage to infrastructure in Malang included 3,782 houses, 20 government buildings, 251 schools, nine hospitals, and 36 churches.

Sources: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM), Jakarta Globe, Badan Nacional Penanggulangan Bencana (BNPB)



Volcano index photo  Shishaldin  | Fox Islands (USA)  | 54.756°N, 163.97°W  | Elevation 2857 m

AVO reported that no activity from Shishaldin was observed in party-to-mostly-cloudy satellite images during 12-18 February. The nearest working seismic station detected low seismicity. The Aviation Color Code remained at Yellow and the Volcano Alert Level remained at Advisory.

Source: US Geological Survey Alaska Volcano Observatory (AVO)



Volcano index photo  Tungurahua  | Ecuador  | 1.467°S, 78.442°W  | Elevation 5023 m

IG reported that on 11 February explosions from Tungurahua generated ash plumes that rose 3 km above the crater and drifted WNW. Roaring noises and sounds resembling blocks rolling down the flanks were noted. A small pyroclastic flow traveled down the flanks at 1720, and ashfall was reported in El Manzano (8 km SW). Incandescence on the N flank was observed at night during 12-13 February. Ash plumes again rose 3 km on 13 February causing ashfall in Choglontus (SW) and Capil. During 13-14 February Strombolian activity ejected blocks that rolled 500 m down the N flank. Ash plumes rose 3 km and drifted W, and minor amounts of ash fell in Tisaleo (29 km NW). Cloud cover prevented views on 15 February; ashfall was reported in Penipe (15 km SW). During periods of clear weather on 16 February observers noted that ash plumes rose 3 km. Ash fell in Runtún (6 km NNE), Penipe, and El Manzano. At night during 16-17 February incandescence from the crater was observed along with blocks that rolled 500 m down the flanks. Gas-and-ash plumes rose 5 km and drifted N, NW, W and SW, and ashfall was reported in Penipe, Chacauco (NW), and Pillate (8 km W). An ash plume rose 4 km on 18 February and drifted W. Minor amounts of ash fell in Choglontus.

Source: Instituto Geofísico-Escuela Politécnica Nacional (IG)



Volcano index photo  Ubinas  | Peru  | 16.355°S, 70.903°W  | Elevation 5672 m

IGP reported that a phreatic explosion from Ubinas occurred at 1445 on 14 February and generated a water vapor, gas, and ash plume that rose 1 km above the crater. Seismic activity had been increasing before the explosion, since 8 February.

Source: Instituto Geofísico del Perú (IGP)



Ongoing Activity


Volcano index photo  Aira  | Kyushu (Japan)  | 31.593°N, 130.657°E  | Elevation 1117 m

The Tokyo VAAC reported that explosions during 12-18 February from Aira Caldera’s Sakurajima volcano generated ash plumes on most days that rose to altitudes of 1.5-3.7 km (5,000-12,000 ft) a.s.l. and drifted E, NE, and N. On 12 February a pilot observed an ash plume drifting E at an altitude of 3 km (10,000 ft) a.s.l. JMA reported that during 14-17 February two explosions from Showa Crater ejected tephra as far as 800 m. The Alert Level remained at 3 (on a scale of 1-5).

Sources: Japan Meteorological Agency (JMA), Tokyo Volcanic Ash Advisory Center (VAAC)



Volcano index photo  Bagana  | Bougainville (Papua New Guinea)  | 6.137°S, 155.196°E  | Elevation 1855 m

Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that on 12 February an ash plume from Bagana rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted 110 km E.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



Volcano index photo  Chirinkotan  | Kuril Islands (Russia)  | 48.98°N, 153.48°E  | Elevation 724 m

SVERT reported that a thermal anomaly over Chirinkotan was observed in satellite images on 12 and 15 February, and steam-and-gas emissions were observed on 16 February. Cloud cover obscured views on other days during 11-17 February. The Aviation Color Code remained at Yellow.

Source: Sakhalin Volcanic Eruption Response Team (SVERT)



Volcano index photo  Chirpoi  | Kuril Islands (Russia)  | 46.532°N, 150.871°E  | Elevation 742 m

SVERT reported that a thermal anomaly over Snow, a volcano of Chirpoi, was detected in satellite images during 11-12 February. Cloud cover obscured views during 13-17 February. The Aviation Color Code remained at Yellow.

Source: Sakhalin Volcanic Eruption Response Team (SVERT)



Volcano index photo  Dukono  | Halmahera (Indonesia)  | 1.693°N, 127.894°E  | Elevation 1229 m

Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that on 17 February an ash plume from Dukono rose to an altitude of 3.7 km (12,000 ft) a.s.l. and drifted 55 km SSW.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



Volcano index photo  Etna  | Sicily (Italy)  | 37.748°N, 14.999°E  | Elevation 3295 m

INGV reported that Strombolian activity continued at Etna's New Southeast Crater (NSEC) and slightly intensified on 12 February. An unstable part of the lower E flank of the cone that collapsed on 11 February continued to produce small collapses and reddish ash clouds. Lava continued to flow from the cone towards the Valle del Bove, and by nightfall had reached the base of the steep W wall of the valley, then advanced on the flat land to the N of Mount Centenarians. Strombolian activity continued during 14-15 February. Lava emissions declined, but produced lava flows a few hundred meters long. At 1208 on 15 February an explosion generated a vapor-and-ash plume, and was then followed by more explosions from the same area. During the afternoon a small lava flow emerged from a new vent at the N base of the NSEC cone. The flow traveled 100 m towards the W wall of the Valle del Bove, and remained active the next day. During 16-17 February Strombolian activity continued to produce small quantities of ash. Lava continued to flow from the vent at the base of the cone.

Source: Sezione di Catania - Osservatorio Etneo (INGV)



Volcano index photo  Fuego  | Guatemala  | 14.473°N, 90.88°W  | Elevation 3763 m

INSIVUMEH reported that during 13-14 February explosions at Fuego produced ash plumes that rose 500-1,000 m above the crater and drifted 8-10 km N and NE. Incandescent material was ejected 200 m high, and avalanches descended the Ceniza (SSW), Trinidad, Las Lajas (SE), and Honda drainages. On 16 February explosions produced ash plumes that rose 500-700 m above the crater and drifted 10 km SW, S, and SE. Shock waves were detected 20-25 km away in Escuintla (20 km SSE), Santa Lucia Cotzulmaguapa (20 km SW), Yepocapa (8 km WNW), Alotengando (8 km W), and Antigua Guatemala (18 km NE). Explosions continued during 16-17 February; ash plumes rose 300-1,100 m above the crater and drifted 15-17 km. Incandescent material was ejected 100-200 m high, and avalanches descended the Taniluyá (SW), Ceniza, Trinidad, and Santa Teresa (S) drainages, reaching vegetated areas.

Source: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH)



Volcano index photo  Karymsky  | Eastern Kamchatka (Russia)  | 54.049°N, 159.443°E  | Elevation 1513 m

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 7-14 February. Satellite images detected a thermal anomaly on the volcano on 12 February; cloud cover obscured views of the volcano on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



Volcano index photo  Kilauea  | Hawaiian Islands (USA)  | 19.421°N, 155.287°W  | Elevation 1222 m

During 12-18 February HVO reported that the circulating lava lake occasionally rose and fell in the deep pit within Kilauea's Halema'uma'u Crater. The plume from the vent continued to deposit variable amounts of ash, spatter, and Pele's hair onto nearby areas. At Pu'u 'O'o Crater, glow emanated from spatter cones on the N and S portions of the crater floor, and a lava pond was active in the NE spatter cone. The 7.8-km-long Kahauale’a 2 lava flow, fed by the NE spatter cone, was active with scattered break-out flows behind the flow front that burned the forest.

Source: US Geological Survey Hawaiian Volcano Observatory (HVO)



Volcano index photo  Santa Maria  | Guatemala  | 14.757°N, 91.552°W  | Elevation 3745 m

In a special bulletin on 11 February, INSIVUMEH noted that activity at Santa María's Santiaguito lava-dome complex had increased in recent days. Explosions from Caliente dome were accompanied by block avalanches and pyroclastic flows that traveled NE. Ash plumes rose 3.5 km and drifted over 15 km S and SW. Some explosions were audible in areas as far as15 km S. During 13-14 February explosions generated ash plumes that rose no more than 200 m above the crater. During 16-17 February the E part of the lava dome was incandescent and lava flows descended the E and W flanks. Gas plumes from Caliente dome rose 300 m.

Source: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH)



Volcano index photo  Sheveluch  | Central Kamchatka (Russia)  | 56.653°N, 161.36°E  | Elevation 3283 m

KVERT reported that during 7-14 February lava-dome extrusion at Shiveluch was accompanied by ash explosions, incandescence, and fumarolic activity. A thermal anomaly was detected in satellite images on 9 and 12 February; cloud cover prevented views on the other days. Pyroclastic flow deposits on the SW flank from the 6 February were observed to be 12 km long. On 17 February at 1108 video data showed an ash plume rising to an altitude of 4 km (13,100 ft) a.s.l. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



Volcano index photo  Sinabung  | Indonesia  | 3.17°N, 98.392°E  | Elevation 2460 m

Based on webcam images, Indonesian Met office notices, wind data, and ground reports, the Darwin VAAC reported that during 12-13 and 15-18 February ash plumes from Sinabung rose to an altitude of 3.7 km (12,000 ft) a.s.l. and drifted 25-95 km N, NE, and E. On 16 February BNPB reported that villagers outside of the 5-km evacuation zone around Sinabung continued to return to their homes.

Sources: Darwin Volcanic Ash Advisory Centre (VAAC), Badan Nacional Penanggulangan Bencana (BNPB)



Volcano index photo  Suwanosejima  | Ryukyu Islands (Japan)  | 29.638°N, 129.714°E  | Elevation 796 m

The Tokyo VAAC reported explosions from Suwanosejima during 12-14 February. On 12 February a plume rose to an altitude of 1.2 km (4,000 ft) a.s.l. and drifted SE, and on 14 February a plume rose to an altitude of 1.8 km (6,000 ft) a.s.l.

Source: Tokyo Volcanic Ash Advisory Center (VAAC)



Weekly Reports Archive

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Chikurachki Kasatochi Osorno Tangkubanparahu
Chiles-Cerro Negro Katla Pacaya Tara, Batu
Chillan, Nevados de Kavachi Pagan Telica
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Chirpoi Kelut Paluweh Tengger Caldera
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 News Feeds and Google Placemarks


The RSS (Really Simple Syndication) feed is identical to the Weekly Volcanic Activity Report minus some features including the header information (latitude and longitude and summit elevation), the Geologic Summary, and a link to the volcano's page from the Global Volcanism Program. Each volcano report includes a link from the volcano's name back to the more complete information in the Weekly Volcanic Activity Report on the Smithsonian website.




The CAP (Common Alerting Protocol) feeds are XML files specifically formatted for disaster management. They are similar in content to the RSS feed, but contain no active links.




A Google Earth network link for the Weekly Volcanic Activity Report can be loaded into the free Google Earth software, and in turn will load placemarks for volcanoes in the current weekly report. Placemark balloons include the volcano name, report date, report text, sources, and links back to the GVP volcano page for that volcano and to the complete Weekly Report for that week.

 Criteria & Disclaimers

Criteria

The Weekly Volcanic Activity Report does not necessarily include all volcanic activity that occurred on Earth during the week. More than a dozen volcanoes globally have displayed more-or-less continuous eruptive activity for decades or longer, and such routine activity is typically not reported here. Moreover, Earth's sea-floor volcanism is seldom reported even though in theory it represents the single most prolific source of erupted material. The Weekly Volcanic Activity Report summarizes volcanic activity that meets one or more of the following criteria:

- A volcano observatory raises or lowers the alert level at the volcano.
- A volcanic ash advisory has been released by a volcanic ash advisory center (VAAC) stating that an ash cloud has been produced from the volcano.
- A verifiable news report of new activity or a change in activity at the volcano has been issued.
- Observers have reported a significant change in volcanic activity. Such activity can include, but is not restricted to, pyroclastic flows, lahars, lava flows, dome collapse, or increased unrest.

Volcanoes are included in the "New Activity/Unrest" section of the Weekly Volcanic Activity Report if the activity occurs after at least 3 months of quiescence. Once a volcano is included in the "New Activity/Unrest" section, updates will remain in that section unless the activity continues for more than 1 month without escalating, after which time updates will be listed in the "Continuing Activity" section. Volcanoes are also included in the "New Activity/Unrest" section if the volcano is undergoing a period of relatively high unrest, or increasing unrest. This is commonly equal to Alert Level Orange on a scale of Green, Yellow, Orange, Red, where Red is the highest alert. Or alert level 3 on a scale of 1-4 or 1-5.

It is important to note that volcanic activity meeting one or more of these criteria may occur during the week, but may not be included in the Weekly Volcanic Activity Report because we did not receive a report.


Disclaimers

1. The Weekly Volcanic Activity Report is intended to provide timely information about global volcanism on a weekly basis. Consequently, the report is generated rapidly by summarizing volcanic reports from various sources, with little time for fact checking. The accuracy of the Weekly Volcanic Activity Report is dependent upon the quality of the volcanic activity reports we receive. Reports published in the Bulletin of the Global Volcanism Network are monthly, and more carefully reviewed, although all of the volcanoes discussed in the Weekly Volcanic Activity Report are not necessarily reported in the Bulletin. Because of our emphasis on rapid reporting on the web we have avoided diacritical marks. Reports are updated on the Weekly Volcanic Activity Report web page as they are received, therefore information may be included regarding events that occurred before the current report period.

2. Rapidly developing events lead to coverage that is often fragmentary. Volcanoes, their eruptions, and their plumes and associated atmospheric effects are complex phenomena that may require months to years of data analysis in order to create a comprehensive summary and interpretation of events.

3. Preliminary accounts sometimes contain exaggerations and "false alarms," and accordingly, this report may include some events ultimately found to be erroneous or misleading.

4. Many news agencies do not archive the articles they post on the Internet, and therefore the links to some sources may not be active. To obtain information about the cited articles that are no longer available on the Internet contact the source.

5. USGS Disclaimer Statement for this Website:

Information presented on this website is considered public information and may be distributed or copied. Use of appropriate byline/photo/image credit is requested. We strongly recommend that USGS data be acquired directly from a USGS server and not through other sources that may change the data in some way. While USGS makes every effort to provide accurate and complete information, various data such as names, telephone numbers, etc. may change prior to updating. USGS welcomes suggestions on how to improve our home page and correct errors. USGS provides no warranty, expressed or implied, as to the accuracy, reliability or completeness of furnished data.

Some of the documents on this server may contain live references (or pointers) to information created and maintained by other organizations. Please note that USGS does not control and cannot guarantee the relevance, timeliness, or accuracy of these outside materials.

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RSS and CAP Feeds

An RSS (Really Simple Syndication) feed for the Weekly Volcanic Activity Report first made available on 5 March 2008 can be utilized with the aid of various free downloadable readers. The report content of the news feed is identical to the Weekly Volcanic Activity Report minus some features including the header information (latitude and longitude and summit elevation), the Geologic Summary, and a link to the volcano's page from the Global Volcanism Program. Each volcano report includes a link from the volcano's name back to the more complete information in the Weekly Volcanic Activity Report on the Smithsonian website. On 12 March 2009, GeoRSS tags were added so that the latitude and longitude for each volcano could be included with the feed.

At the end of each individual report is a list of the sources used. We would like to emphasize that the World Organization of Volcano Observatories (WOVO) website (http://www.wovo.org/) lists the regional volcano observatories that have the most authoritative data for many of these events.

CAP (Common Alerting Protocol) feeds are XML files specifically formatted for disaster management.


Google Earth Placemarks

A Google Earth network link for the Weekly Volcanic Activity Report was first made available on 1 April 2009. This file can be loaded into the free Google Earth software, and in turn will load placemarks for volcanoes in the current weekly report. Placemark balloons include the volcano name, report date, report text, sources, and links back to the GVP volcano page for that volcano and to the complete Weekly Report for that week.

 Acronyms and Abbreviations

a.s.l. - above sea level

AVO - Alaska Volcano Observatory

AVHRR - Advanced Very High Resolution Radiometer

CENAPRED - Centro Nacionale de Prevencion de Desastres (México)

CONRED - Coordinadora Nacional para la Reducción de Desastres

COSPEC - Correlation Spectrometer

CVGHM (formerly VSI) - Center of Volcanology and Geological Hazard Mitigation

CVO - Cascades Volcano Observatory (USGS)

GMS - Geostationary Meteorological Satellite

GOES - Geostationary Operational Environmental Satellite

GVO - Goma Volcano Observatory

GVP - Global Volcanism Program (Smithsonian Institution)

HVO - Hawaiian Volcano Observatory (USGS)

ICE - Instituto Costarricense de Electricidad (Costa Rica)

IG - Instituto Geofísico (Ecuador)

IGNS - Institute of Geological and Nuclear Sciences (New Zealand) - now GNS Science

INETER - Instituto Nicaragüense de Estudios Territoriales (Nicaragua)

INGEMMET - Instituto Geológical Minero y Metalúrgico (Peru)

INGEOMINAS - Instituto Colombiano de Geología y Minería (Colombia)

INGV-CT - Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Catania (Italy)

INSIVUMEH - Instituto Nacional de Sismologia, Vulcanologia, Meteorologia e Hidrologia (Guatemala)

IRD - Institut de Recherche pour le Développement (France)

JMA - Japanese Meteorological Agency

KEMSD - Kamchatkan Experimental and Methodical Seismilogical Department

KVERT - Kamchatkan Volcanic Eruption Response Team

M - magnitude

METEOSAT - Meteorological Satellite

MEVO - Mount Erebus Volcano Observatory

MODIS - Moderate Resolution Imaging Spectroradiometer

MVO - Montserrat Volcano Observatory

MWO - Meteorological Watch Office

NEIC - National Earthquake Information Center

NIED - National Research Institute for Earth Science and Disaster Prevention (Japan)

NOAA - National Oceanic and Atmospheric Administration

NOTAM - Notice to Airmen

OVDAS - Observatorio Volcanologico de los Andes del Sur (Chile)

OFDA - Office of US Foreign Disaster Assistance

ONEMI - Oficina Nacional de Emergencia - Ministerio del Interior (Chile)

OVPDLF - Observatoire Volcanologique du Piton de la Fournaise (France)

OVSICORI-UNA - Observatorio Vulcanologico y Sismologico de Costa Rica, Universidad Nacional (Costa Rica)

PHIVOLCS - Philippine Institute of Volcanology and Seismology (Philippines)

RSAM - Real-time Seismic Amplitude Measurement

RVO - Rabaul Volcano Observatory

SERNAGEOMIN - Servicio Nacional de Geologia y Mineria (Chile)

SIGMET - Significant Meteorological Information

SNET - Servicio Nacional de Estudios Territoriales (El Salvador)

SVERT - Sakhalin Volcanic Eruption Response Team (Russia)

USAID - US Agency for International Development

USGS - United States Geological Survey

UTC - Coordinated Universal Time

VAAC - Volcanic Ash Advisory Center

VAFTAD - Volcanic Ash Forecast Transport And Dispersion

VDAP - Volcano Disaster Assistance Program (USGS)

VHP - Volcano Hazards Program (USGS)

VRC - Volcano Research Center (Japan)