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Smithsonian / USGS Weekly Volcanic Activity Report

You are currently viewing Archived reports for the week of 2 November-8 November 2016.


















 Activity for the week of 2 November-8 November 2016

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
Cleveland Chuginadak Island (USA) New
Copahue Central Chile-Argentina border New
Iya Flores Island (Indonesia) New
Langila New Britain (Papua New Guinea) New
Sabancaya Peru New
Ulawun New Britain (Papua New Guinea) New

Awu Sangihe Islands (Indonesia) Ongoing
Bagana Bougainville (Papua New Guinea) Ongoing
Colima Mexico Ongoing
Dukono Halmahera (Indonesia) Ongoing
Egon Flores Island (Indonesia) Ongoing
Kilauea Hawaiian Islands (USA) Ongoing
Klyuchevskoy Central Kamchatka (Russia) Ongoing
Masaya Nicaragua Ongoing
Popocatepetl Mexico Ongoing
Sheveluch Central Kamchatka (Russia) Ongoing
Sinabung Indonesia Ongoing
Suwanosejima Ryukyu Islands (Japan) Ongoing


New Activity / Unrest


Volcano index photo  Cleveland  | Chuginadak Island (USA)  | 52.825°N, 169.944°W  | Elevation 1730 m

AVO reported that no activity at Cleveland had been observed following the explosion at Cleveland on 24 October. The Level of Concern Color Code was lowered to Yellow and the Volcano Alert Level was lowered to Advisory.

Source: US Geological Survey Alaska Volcano Observatory (AVO)



Volcano index photo  Copahue  | Central Chile-Argentina border  | 37.856°S, 71.183°W  | Elevation 2953 m

Based on satellite and webcam images, the Buenos Aires VAAC reported that during 4-5 and 7-8 November gas and water vapor plumes with minor ash content rose from Copahue to altitudes of 3.3-3.9 km (11,000-13,000 ft) a.s.l. and drifted E and NE.

Source: Buenos Aires Volcanic Ash Advisory Center (VAAC)



Volcano index photo  Iya  | Flores Island (Indonesia)  | 8.897°S, 121.645°E  | Elevation 637 m

PVMBG reported that after an increase on 29 September seismicity at Iya decreased significantly, with the number of deep volcanic earthquakes slowing from a rate of five per day or less, to none on 22 October. On 31 October the Alert Level was lowered to 1 (on a scale of 1-4).

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)



Volcano index photo  Langila  | New Britain (Papua New Guinea)  | 5.525°S, 148.42°E  | Elevation 1330 m

Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that on 3 November an ash plume from Langila rose to an altitude of 3.3 km (11,000 ft) a.s.l. and drifted 55 km W. Three discreet ash plumes on 4 November all rose to the same altitude as the day before and drifted NW.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



Volcano index photo  Sabancaya  | Peru  | 15.787°S, 71.857°W  | Elevation 5960 m

Based on webcam and satellite views and notices from IGP, the Buenos Aires VAAC reported that during 7-8 November gas-and-water-vapor plumes with minor amounts of ash rose from Sabancaya to a maximum height of 2.2 km above the summit.

Source: Buenos Aires Volcanic Ash Advisory Center (VAAC)



Volcano index photo  Ulawun  | New Britain (Papua New Guinea)  | 5.05°S, 151.33°E  | Elevation 2334 m

RVO reported that during 16-31 October activity at Ulawun was at low levels. Gray and white plumes with varying densities rose 100-200 m above the summit crater and drifted SW, NW, and NE. Low rumbling was heard on 24 October. Based on analyses of satellite imagery, the Darwin VAAC reported that on 7 November an ash plume rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted over 45 km E.

Sources: Darwin Volcanic Ash Advisory Centre (VAAC), Rabaul Volcano Observatory (RVO)



Ongoing Activity


Volcano index photo  Awu  | Sangihe Islands (Indonesia)  | 3.689°N, 125.447°E  | Elevation 1318 m

PVMBG reported that seismicity at Awu fluctuated but declined during 1-30 October; the maximum number of shallow and deep volcanic earthquakes were eight and three, respectively, which were in the normal range. Solfatara plumes rose as high as 25 m above the vent. The Alert Level was lowered to 1 (on a scale of 1-4) on 31 October.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)



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

Based on analyses of satellite imagery and model data, the Darwin VAAC reported that during 4 and 6-8 October ash plumes from Bagana rose to altitudes of 2.1-2.4 km (7,000-8,000 ft) a.s.l. and drifted W, S, ESE, and E.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



Volcano index photo  Colima  | Mexico  | 19.514°N, 103.62°W  | Elevation 3850 m

Based on satellite and webcam images, the Washington VAAC reported that on 4 November an ash plume from Colima rose to an altitude of 4.6 km (15,000 ft) a.s.l. and drifted over 30 km SW.

Source: Washington Volcanic Ash Advisory Center (VAAC)



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

Based on analyses of satellite imagery and model data, the Darwin VAAC reported that during 2 and 4-8 November ash plumes from Dukono rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted SE, E, NE, N and NW.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



Volcano index photo  Egon  | Flores Island (Indonesia)  | 8.676°S, 122.455°E  | Elevation 1661 m

PVMBG reported that during 1 July-31 October gas plumes from Egon rose no higher than 100 m above the crater. Seismicity decreased and was dominated by signals indicating emissions. The Alert Level was lowered to 1 (on a scale of 1-4) on 1 November.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)



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

During 2-8 November HVO reported that the lava lake continued to rise and fall, circulate, and spatter in Kilauea’s Overlook vent; the lava lake fluctuated between 11 and 19 m below the Halema’uma’u floor. Webcams recorded incandescence from long-active sources within Pu'u 'O'o Crater. The 61G lava flow, originating from a vent on Pu'u 'O'o Crater's E flank, continued to enter the ocean near Kamokuna at the easternmost lava delta. Aerial observations on 3 November revealed that the E delta was relatively large with prominent cracks on the surface, suggesting instability.

Source: US Geological Survey Hawaiian Volcano Observatory (HVO)



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

KVERT reported that a Strombolian eruption at Klyuchevskoy continued during 28 October-4 November. Gas-and-steam emissions with variable amounts of ash rose from the summit crater and from the cinder cone in the Apakhonchich drainage on the E flank. A lava flow traveled down the Apakhonchich drainage. Satellite images showed a large and bright daily thermal anomaly at the volcano. Gas, steam, and ash plumes from explosions rose to altitudes of 5-8 km (16,400-26,200 ft) a.s.l. and drifted 277 km E and SE during 30-31 October and 1-3 November. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



Volcano index photo  Masaya  | Nicaragua  | 11.984°N, 86.161°W  | Elevation 635 m

Based on webcam images, the Washington VAAC reported that a steam-and-gas plume from Masaya possibly contained some ash on 3 November.

Source: Washington Volcanic Ash Advisory Center (VAAC)



Volcano index photo  Popocatepetl  | Mexico  | 19.023°N, 98.622°W  | Elevation 5393 m

Each day during 2-8 November CENAPRED reported 40-185 steam, gas, and ash emissions from Popocatépetl. Crater incandescence was visible nightly, and at dawn on 2 November. The Alert Level remained at Yellow, Phase Two.

Source: Centro Nacional de Prevencion de Desastres (CENAPRED)



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

KVERT reported that during 28 October-4 November lava-dome extrusion onto Sheveluch’s N flank was accompanied by strong fumarolic activity, dome incandescence, explosions with ash plumes as high as 6 km (19,700 ft) a.s.l., and hot avalanches. Satellite images showed a daily thermal anomaly over the dome. According to video and satellite data, ash plumes drifted just over 300 km NE, E, and SE during 30-31 October, and 1 and 3 November. 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 ground observers and the Jakarta MWO, the Darwin VAAC reported that on 6 November an ash plume from Sinabung rose to an altitude of 3.9 km (13,000 ft) a.s.l. and drifted E.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



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

Based on JMA notices and satellite-image analyses, the Tokyo VAAC reported that during 5-6 November events at Suwanosejima generated ash plumes that rose to an altitude of 1.5 km (5,000 ft) a.s.l. and drifted E and SW.

Source: Tokyo Volcanic Ash Advisory Center (VAAC)



Weekly Reports Archive

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Agung Fourpeaked Lewotolo Sakar
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Bagana Hood Midagahara Slamet
Balbi Hudson, Cerro Misti, El Soputan
Bamus Huila, Nevado del Miyakejima Sorikmarapi
Banda Api Hunga Tonga-Hunga Ha'apai Momotombo Sotara
Bardarbunga Ibu Monowai Soufriere Hills
Barren Island Ijen Montagu Island Soufriere St. Vincent
Batur Iliamna Moyorodake [Medvezhia] South Sarigan Seamount
Bezymianny Iliwerung Mutnovsky Spurr
Bogoslof Inielika Myojinsho St. Helens
Brava Ioto Nabro Stromboli
Bristol Island Iya Negra, Sierra Sulu Range
Bulusan Izu-Torishima Negro, Cerro Sumbing
Calbuco Jackson Segment Nightingale Island Sundoro
Callaqui Kaba Nishinoshima Suretamatai
Cameroon Kadovar Nisyros Suwanosejima
Campi Flegrei del Mar di Sicilia Kambalny Novarupta Taal
Cayambe Kanaga NW Rota-1 Tair, Jebel at
Cereme Kanlaon Nyamuragira Takawangha
Chachadake [Tiatia] Karangetang Nyiragongo Talang
Chaiten Karkar Okataina Tambora
Chiginagak Karthala Okmok Tanaga
Chikurachki Karymsky Ontakesan Tandikat-Singgalang
Chiles-Cerro Negro Kasatochi Oraefajokull Tangkoko-Duasudara
Chillan, Nevados de Katla Osorno Tangkubanparahu
Chirinkotan Kavachi Pacaya Tara, Batu
Chirpoi Kelimutu Pagan Telica
Cleveland Kelut Palena Volcanic Group Tenerife
Colima Kerinci Paluweh Tengger Caldera
Colo Ketoi Panarea Three Sisters
Concepcion Kharimkotan Papandayan Tinakula
Copahue Kick 'em Jenny Parker Tofua
Cotopaxi Kikai Pavlof Tokachidake
Cuicocha Kilauea Peuet Sague Tolbachik
Cumbal Kirishimayama Pinatubo Toliman
Dabbahu Kizimen Planchon-Peteroa Tongariro
Dempo Klyuchevskoy Poas Tungurahua
Descabezado Grande Kolokol Group Popocatepetl Turrialba
Dieng Volcanic Complex Korovin Puyehue-Cordon Caulle Ubinas
Dukono Koryaksky Rabaul Ulawun
Ebeko Krakatau Ranakah Unknown Source
Ebulobo Krummel-Garbuna-Welcker Raoul Island Unnamed
Egon Kuchinoerabujima Rasshua Veniaminof
Ekarma Kurikomayama Raung Villarrica
Epi Kusatsu-Shiranesan Redoubt West Mata
Erebus Kverkfjoll Reventador White Island
Erta Ale Lamington Rincon de la Vieja Witori
Etna Lamongan Rinjani Wolf
Etorofu-Yakeyama [Grozny Group] Langila Ritter Island Yasur
Eyjafjallajokull Lanin Rotorua Zaozan
Fernandina Lascar Ruang Zavodovski
Fogo Lengai, Ol Doinyo Ruapehu Zhupanovsky
Fonualei Leroboleng Ruiz, Nevado del Zubair Group
Fournaise, Piton de la Lewotobi Sabancaya
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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)