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Smithsonian / USGS Weekly Volcanic Activity Report

You are currently viewing Archived reports for the week of 16 October-22 October 2013.


















 Activity for the week of 16 October-22 October 2013

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
Barren Island Andaman Islands (India) New
Klyuchevskoy Central Kamchatka (Russia) New
Semeru Eastern Java (Indonesia) New
Sheveluch Central Kamchatka (Russia) New
Tungurahua Ecuador New
Veniaminof United States New
White Island North Island (New Zealand) New

Aira Kyushu (Japan) Ongoing
Chirinkotan Kuril Islands (Russia) Ongoing
Dukono Halmahera (Indonesia) Ongoing
Karymsky Eastern Kamchatka (Russia) Ongoing
Kilauea Hawaiian Islands (USA) Ongoing
Suwanosejima Ryukyu Islands (Japan) Ongoing


New Activity / Unrest


Volcano index photo  Barren Island  | Andaman Islands (India)  | 12.278°N, 93.858°E  | Elevation 354 m

Based on analysis of satellite imagery and wind data, the Darwin VAAC reported that on 17 October an ash plume from Barren Island rose to an altitude of 3.7 km (12,000 ft) a.s.l. and drifted less than 30 km NW.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



Volcano index photo  Klyuchevskoy  | Central Kamchatka (Russia)  | 56.056°N, 160.642°E  | Elevation 4754 m

KVERT reported that a strong explosion from a new cinder cone low on Kliuchevskoi’s SW flank occurred between 2020 and 2030 on 11 October. An ash plume rose to altitudes of 6-7 km (19,700-23,000 ft) a.s.l. and drifted E.

Activity increased on 15 October, prompting KVERT to raise the Aviation Color Code to Red at 1311. Ash plumes rose to altitudes of 7-8 km (23,000-26,200 ft) a.s.l. and drifted 140 km SSW. Phreatic explosions on the SW flank generated ash plumes that rose 3-4 km (9,800-13,100 ft) a.s.l. Satellite images showed an ash plume rising to an altitude of 7.5 km (24,600 ft) a.s.l. at 1419 and drifting 103 km SSW. Activity increased again; ash plumes rose to altitudes of 9 km (29,500 ft) a.s.l. at 1655 and 10 km (32,800 ft) a.s.l. afterwards. Ash plumes drifted SSW and S. At 2056 KVERT lowered the Aviation Color Code to Orange and noted that although activity had slightly decreased it still remained high. Ash plumes rose 8 km (26,200 ft) a.s.l. and drifted ENE. Phreatic explosions at the SW flank continued, as well as lava flows on the SW, W, and SE flanks.

At 0815 on 16 October satellite images detected ash plumes that rose to altitudes of 2-3 km (6,600-9,800 ft) a.s.l. and drifted 480 km NNW. Activity again increased and at 1143 KVERT issued a notice stating that the Aviation Color Code was again being raised to Red. Seismic data indicated that ash plumes rose to an altitude of 10 km (32,800 ft) a.s.l. Clouds prevented direct observations but satellite images showed ash plumes drifting NW. At 1624 satellite images showed ash plumes drifting WSW at altitudes of 7-7.5 km (23,000-24,600 ft) a.s.l. Strombolian and Vulcanian explosions continued. Activity again slightly decreased; the Aviation Color Code was lowered to Orange. Minor ashfall was reported in Mayskoe Village.

During 16-17 October the melting of the Bogdanovich glacier due to the volcanic activity caused increased water flow in the Studenaya River, which destroyed part of a road near Kozyrevsk village (about 50 km W).

On 18 October the Aviation Color Code was again raised to Red but lowered to Orange later that day. Ash plumes rose to altitudes of 8-9 km (26,200-29,500 ft) a.s.l. and drifted 20-100 km SE. Strombolian activity continued and several lava flows continued to effuse onto the W, SW, and SE flanks. At 0559 on 19 October ash plumes observed in satellite images drifted 630 km SE at altitudes of 8-9 km (26,200-29,500 ft) a.s.l. The Aviation Color Code was raised to Red. Ash plume altitudes fluctuated between 7-8 km (23,000-26,200 ft) a.s.l. later that day. A large amount of ash continued to drift 600 km SE. At 0100 on 21 October a sharp decrease in seismicity was detected and only fumarolic activity was observed. The Aviation Color Code was lowered to Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



Volcano index photo  Semeru  | Eastern Java (Indonesia)  | 8.108°S, 112.922°E  | Elevation 3657 m

The Darwin VAAC reported that on 18 October a pilot saw a low-level ash plume from Semeru. Ash was not identified in satellite images.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



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

Based on visual observations and analyses of satellite data, KVERT reported that during 11-18 October a viscous lava flow effused onto the N and NE flanks of Shiveluch's lava dome, accompanied by hot avalanches, incandescence, ash explosions, and fumarolic activity. A thermal anomaly was detected daily in satellite images.

At 1528 on 18 October video data showed ash plumes rising to altitudes of 9-10 km (29,500-32,800 ft) a.s.l. Several explosions during 1506-1528 generated ash plumes that rose to an altitude of 10 km (32,800 ft) a.s.l. and drifted SE. The Aviation Color Code was raised to Red. Video images showed ash plumes rising to 6-7 km (19,700-23,000 ft) a.s.l. at 1634, to altitudes of 7-7.5 km (23,000-24,600 ft) a.s.l. at 1708 and 1722, and to altitudes of 9 km (29,500 ft) a.s.l. at 1753 and 1759. KVERT announced that the Aviation Color Code was lowered to Orange at 2038. Continuous ash emissions produced plumes that rose 3-3.5 km (9,800-11.500 ft) a.s.l. and drifted S. The lava dome continued to grow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



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

IG reported that after a 3-month lull in activity at Tungurahua, a new eruption that began on 6 October was characterized by increased seismicity, Strombolian activity that ejected incandescent blocks, and ash plumes that produced ashfall in nearby areas. Seismicity peaked on 11 October and high-level ash plumes again produced ashfall in nearby towns. The number of explosions increased on 14 October and two small pyroclastic flows traveled a few hundred meters the next day.

Source: Instituto Geofísico-Escuela Politécnica Nacional (IG)



Volcano index photo  Veniaminof  | United States  | 56.17°N, 159.38°W  | Elevation 2507 m

Lava effusion from Veniaminof's intracaldera cone resumed on 6 October, prompting AVO to raise the Volcano Alert Level to Watch and the Aviation Color code to Orange.

On 17 October AVO noted that seismicity had decreased during the previous week and satellite observations during periods of clear weather showed no evidence of eruptive activity. The Aviation Color Code was lowered to Yellow and the Volcano Alert Level was lowered to Advisory. Seismicity remained above background levels during 17-22 October.

Source: US Geological Survey Alaska Volcano Observatory (AVO)



Volcano index photo  White Island  | North Island (New Zealand)  | 37.52°S, 177.18°E  | Elevation 321 m

On 21 October the GeoNet Data Centre reported that no further eruptive activity at White Island was detected after the eruption on 11 October, which ejected material over 350 m from the active vent and caused a wet surge cloud that enveloped the Main Crater. Volcanic tremor levels had decreased after the eruption and continued at variable levels. Gas flight measurements on 17 October showed that the SO2 flux was 450 tonnes per day, CO2 was 1,140 tonnes per day, and H2S was12 tonnes per day. The SO2 and H2S flux had changed very little, and CO2 had decreased from the previous measurements on 23 August. The Volcanic Alert Level was lowered to 1 and the Aviation Colour Code remained at Yellow.

Source: GeoNet



Ongoing Activity


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

JMA reported that seven explosions from Sakura-jima's Showa Crater ejected tephra as far as 1,300 m during 15-18 October. An explosion on 15 October was followed by 3-cm-sized tephra falling in areas 3.5 km SW. Based on information from JMA, the Tokyo VAAC reported that during 16-22 October explosions generated plumes that rose to altitudes of 1.2-3.7 km (4,000-12,000 ft) a.s.l. and drifted W, SW, S, and SE. On 21 October an ash plume rose vertically to an altitude of 5.5 km (18,000 ft) a.s.l.

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



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

SVERT reported that during 17-19 October a thermal anomaly from Chirinkotan was detected in satellite images along with gas-and-steam emissions drifting 30-60 km SE. Cloud cover prevented observations on the other days during 14-21 October. 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 during 18-22 October ash plumes from Dukono rose to altitudes of 2.1-2.7 km (7,000-9,000 ft) a.s.l. and drifted 35-150 km NE and E.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



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

KVERT reported that moderate seismic activity at Karymsky was detected during 11-18 October. Satellite images showed a thermal anomaly on the volcano on 11 and 16 October, and an ash plume drifting 18 km SE on 12 October. The thermal anomalies and short ash plume possibly indicated Strombolian and weak Vulcanian activity. 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 16-22 October 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. The 5.8-km-long Kahauale’a 2 lava flow, fed by the NE spatter cone, was active with scattered break-out flows and burned the forest N of Pu'u 'O'o. Peace Day activity, fed by lava tubes extending from Pu'u 'O'o, consisted of a few breakouts; on 21 October geologists mapped a small breakout lava flow, with two lobes, about 3 km SE of Pu'u 'O'o.

Source: US Geological Survey Hawaiian Volcano Observatory (HVO)



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

According to the Tokyo VAAC, a pilot observed an ash plume from Suwanose-jima on 21 October. Based on information from JMA the VAAC noted that a plume rose to an altitude of 1.5 km (5,000 ft) a.s.l. and drifted S that same day.

Source: Tokyo Volcanic Ash Advisory Center (VAAC)



Weekly Reports Archive

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Chirpoi Kelimutu Paluweh Tengger Caldera
Cleveland Kelut Panarea Three Sisters
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Concepcion Kharimkotan Pavlof Tokachidake
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Cumbal Kirishimayama Poas Tungurahua
Dabbahu Kizimen Popocatepetl Turrialba
Dempo Klyuchevskoy Puyehue-Cordon Caulle Ubinas
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Dieng Volcanic Complex Korovin Ranakah Unknown Source
Dukono Koryaksky Raoul Island Unnamed
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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)