Smithsonian / USGS Weekly Volcanic Activity Report

















New Activity Highlights


 Activity for the week of 8 November-14 November 2017


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
Aoba Vanuatu New
Dempo Indonesia New
Sarychev Peak Matua Island (Russia) New

Agung Bali (Indonesia) Ongoing
Aira Kyushu (Japan) Ongoing
Cleveland Chuginadak Island (USA) Ongoing
Dukono Halmahera (Indonesia) Ongoing
Ebeko Paramushir Island (Russia) Ongoing
Kilauea Hawaiian Islands (USA) Ongoing
Novarupta United States Ongoing
Sabancaya Peru Ongoing
San Cristobal Nicaragua Ongoing
Sheveluch Central Kamchatka (Russia) Ongoing
Sinabung Indonesia Ongoing
Suwanosejima Ryukyu Islands (Japan) Ongoing
Turrialba Costa Rica Ongoing


New Activity/Unrest


Volcano index photo  Aoba  | Vanuatu  | 15.4°S, 167.83°E  | Elevation 1496 m

Based on analyses of satellite images and model data, the Wellington VAAC reported that during the morning of 8 November low-level ash plumes from Aoba rose 3 km (10,000 ft) a.s.l. and drifted W.

Source: Wellington Volcanic Ash Advisory Center (VAAC)



Volcano index photo  Dempo  | Indonesia  | 4.03°S, 103.13°E  | Elevation 3173 m

According to PVMBG a three-minute-long phreatic eruption at Dempo began at 1651 on 9 November, and generated a dense ash plume that rose 4.2 km (13,800 ft) a.s.l., about 1 km above the crater rim, and drifted S. The Alert Level remained at 2 (on a scale of 1-4).

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



Volcano index photo  Sarychev Peak  | Matua Island (Russia)  | 48.092°N, 153.2°E  | Elevation 1496 m

SVERT reported that a thermal anomaly over Sarychev Peak was identified in satellite images during 6-7 November. Weak steam-and-gas emissions were observed on 8 November. Weather clouds prevented observations during 9-13 November. The Aviation Color Code remained at Green.

Source: Sakhalin Volcanic Eruption Response Team (SVERT)



Ongoing Activity


Volcano index photo  Agung  | Bali (Indonesia)  | 8.343°S, 115.508°E  | Elevation 2995 m

PVMBG reported that white plumes from Agung rose as high as 500 m above the crater rim during 8-14 November. The Alert Level remained at 3 (on a scale of 1-4), and the exclusion zones remained intact (at 6 km, and an additional expansion to 7.5 km in the NNE, SE, S, and SW directions).

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



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

JMA reported that an explosion at Minamidake summit crater (at Aira Caldera’s Sakurajima volcano) detected at 1025 on 7 November generated an ash plume that rose 1.3 km above the crater rim. A very small event occurred at the same crater on 13 November. The Alert Level remained at 3 (on a 5-level scale).

Source: Japan Meteorological Agency (JMA)



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

AVO reported that during 8-13 November elevated surface temperatures in Cleveland's summit crater were identified in satellite data, possibly indicative of a lava flow in the crater. No significant eruptive activity was detected by seismic or infrasound sensors; both sensors detected a signal associated with low-level emissions during 0056-0059 on 12 November. A small explosion was recorded at 0315 on 14 November. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch.

Source: US Geological Survey Alaska Volcano Observatory (AVO)



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

Based on analyses of satellite imagery, wind model data, and notices from PVMBG, the Darwin VAAC reported that during 8-14 November ash plumes from Dukono rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted in multiple directions.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



Volcano index photo  Ebeko  | Paramushir Island (Russia)  | 50.686°N, 156.014°E  | Elevation 1103 m

Based on observations by volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, explosions during 5 and 7-8 November generated ash plumes that rose as high as 2 km (6,600 ft) a.s.l. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



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

During 8-14 November HVO reported that the lava lake continued to rise, fall, and spatter in Kilauea’s Overlook crater. Webcams recorded incandescence from long-active sources within Pu'u 'O'o Crater and from a small lava pond in a pit on the W side of the crater. The 61G lava flow, originating from a vent on Pu'u 'O'o Crater's E flank, ceased entering the ocean at Kamokuna on 8 November but then began reentering the ocean during 12-13 November. Surface lava flows were active above and on the pali, and on the coastal plain, and new breakouts were observed.

Source: US Geological Survey Hawaiian Volcano Observatory (HVO)



Volcano index photo  Novarupta  | United States  | 58.27°N, 155.157°W  | Elevation 841 m

On 13 November AVO reported that a cloud of ash, resuspended by strong winds in the vicinity of Katmai and the Valley of Ten Thousand Smokes, was blown about 120 km SE over Shelikof Strait and Kodiak Island at an altitude of up to 3 km (10,000 ft) a.s.l. The ash was originally deposited during the Novarupta eruption in 1912. The Volcano Alert Level remained at Normal and the Aviation Color Code remained at Green.

Source: US Geological Survey Alaska Volcano Observatory (AVO)



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

Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that explosive activity at Sabancaya increased compared to the previous week; there was an average of 66 explosions recorded per day during 6-12 November. Seismicity was dominated by long-period events, with signals indicating emissions. Gas-and-ash plumes rose 4 km above the crater rim and drifted 50 km NE, E, and SE. The MIROVA system detected six thermal anomalies. The sulfur dioxide flux was high, at 2,763 tons per day on 8 November. The report noted that the public should not to approach the crater within a 12-km radius.

Sources: Instituto Geológico Minero y Metalúrgico (INGEMMET), Instituto Geofísico del Perú (IGP)



Volcano index photo  San Cristobal  | Nicaragua  | 12.702°N, 87.004°W  | Elevation 1745 m

INETER reported that a series of 14 explosions at San Cristóbal began at 2134 on 7 November. The first explosion was the strongest, causing an increase in RSAM to 150 units; RSAM dropped to 50 after the last explosion. Ash fell in areas to the W and NE, including in the communities of Los Farallones, San Agustín, La Mora, El Naranjo, and Chinandega.

Source: Instituto Nicaragüense de Estudios Territoriales (INETER)



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

KVERT reported that a thermal anomaly over Sheveluch was identified in satellite images on 3, 6, and 8 November; weather clouds prevented observations on the other days during 4-10 November. Explosions on 8 November generated ash plumes that rose 8 km (26,200 ft) a.s.l. and drifted 990 km NE. 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 observations by PVMBG, satellite and webcam images, and model data, the Darwin VAAC reported that during 9 and 11-12 November ash plumes from Sinabung rose 4.6-4.9 km (15,000-16,000 ft) a.s.l. and drifted E and ESE. The Alert Level remained at 4 (on a scale of 1-4).

Sources: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM), 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 data, the Tokyo VAAC reported that on 10 November an event at Suwanosejima produced a plume that rose 1.8 km (6,000 ft) a.s.l. and drifted NW.

Source: Tokyo Volcanic Ash Advisory Center (VAAC)



Volcano index photo  Turrialba  | Costa Rica  | 10.025°N, 83.767°W  | Elevation 3340 m

OVSICORI-UNA reported that an ash emission at Turrialba began before 0730 on 13 November and intensified around 0830. An ash plume rose 500 m above the crater rim and drifted SW.

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



Weekly Reports Archive


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Agung Fournaise, Piton de la Lewotobi San Cristobal
Ahyi Fourpeaked Lewotolo San Miguel
Aira Fuego Little Sitkin San Vicente
Akan Fujisan Llaima Sangay
Alaid Fukutoku-Oka-no-Ba Loihi Sangeang Api
Alu-Dalafilla Galeras Lokon-Empung Santa Ana
Ambang Galunggung Lopevi Santa Maria
Ambrym Gamalama Machin Sarigan
Anatahan Gamkonora Makian Sarychev Peak
Antuco Gaua Makushin Saunders
Aoba Gorely Manam Semeru
Apoyeque Great Sitkin Manda Hararo Semisopochnoi
Arenal Grimsvotn Marapi Seulawah Agam
Asamayama Guagua Pichincha Maroa Sheveluch
Askja Guallatiri Martin Shishaldin
Asosan Guntur Masaya Simbo
Augustine Hachijojima Mauna Loa Sinabung
Avachinsky Hakoneyama Mayon Sinarka
Awu Heard McDonald Islands Siple
Axial Seamount Hekla Melimoyu Sirung
Azul, Cerro Hierro Merapi Slamet
Azumayama Hokkaido-Komagatake Metis Shoal Soputan
Bagana Home Reef Misti, El Sorikmarapi
Balbi Hood Miyakejima Sotara
Bamus Hudson, Cerro Momotombo Soufriere Hills
Banda Api Huila, Nevado del Monowai Soufrière St. Vincent
Bardarbunga Hunga Tonga-Hunga Ha'apai Montagu Island South Sarigan Seamount
Barren Island Ibu Moyorodake [Medvezhia] Spurr
Batur Ijen Mutnovsky St. Helens
Bezymianny Iliamna Nabro Stromboli
Bogoslof Iliwerung Negra, Sierra Sulu Range
Brava Inielika Negro, Cerro Sumbing
Bristol Island Ioto Nightingale Island Sundoro
Bulusan Iya Nishinoshima Suretamatai
Calbuco Izu-Torishima Nisyros Suwanosejima
Callaqui Jackson Segment Novarupta Taal
Cameroon Kaba NW Rota-1 Tair, Jebel at
Campi Flegrei Mar Sicilia Kambalny Nyamuragira Takawangha
Cayambe Kanaga Nyiragongo Talang
Cereme Kanlaon Okataina Tambora
Chachadake [Tiatia] Karangetang Okmok Tanaga
Chaiten Karkar Ontakesan Tandikat-Singgalang
Chiginagak Karthala Pacaya Tangkoko-Duasudara
Chikurachki Karymsky Pagan Tangkubanparahu
Chiles-Cerro Negro Kasatochi Palena Volcanic Group Tara, Batu
Chillan, Nevados de Katla Paluweh Telica
Chirinkotan Kavachi Panarea Tenerife
Chirpoi Kelimutu Papandayan Tengger Caldera
Cleveland Kelut Parker Three Sisters
Colima Kerinci Pavlof Tinakula
Colo Ketoi Peuet Sague Tofua
Concepcion Kharimkotan Pinatubo Tokachidake
Copahue Kick 'em Jenny Planchon-Peteroa Tolbachik
Cotopaxi Kikai Poas Toliman
Cumbal Kilauea Popocatepetl Tongariro
Dabbahu Kirishimayama Puyehue-Cordon Caulle Tungurahua
Dempo Kizimen Rabaul Turrialba
Descabezado Grande Klyuchevskoy Ranakah Ubinas
Dieng Volcanic Complex Kolokol Group Raoul Island Ulawun
Dukono Korovin Rasshua Unknown Source
Ebeko Koryaksky Raung Unnamed
Ebulobo Krakatau Redoubt Veniaminof
Egon Krummel-Garbuna-Welcker Reventador Villarrica
Ekarma Kuchinoerabujima Rincon de la Vieja West Mata
Epi Kusatsu-Shiranesan Rinjani White Island
Erebus Kverkfjoll Ritter Island Witori
Erta Ale Lamington Rotorua Wolf
Etna Lamongan Ruang Yasur
Etorofu-Yakeyama [Grozny Group] Langila Ruapehu Zavodovski
Eyjafjallajokull Lanin Ruiz, Nevado del Zhupanovsky
Fernandina Lascar Sabancaya Zubair Group
Fogo Lengai, Ol Doinyo Sakar
Fonualei Leroboleng Salak
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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.

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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.

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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)

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 Volcanológico 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

RSAM - Real-time Seismic Amplitude Measurement

RVO - Rabaul Volcano Observatory

SERNAGEOMIN - Servicio Nacional de Geología y Minería (Chile)

SIGMET - Significant Meteorological Information

SNET - Servicio Nacional de Estudios Territoriales (El Salvador)

SVERT - Sakhalin Volcanic Eruption Response Team (Kurile Islands)

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)