Logo link to homepage

Smithsonian / USGS Weekly Volcanic Activity Report

Weekly Volcanic Activity Map

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 and averaging 16 reported volcanoes, this is not a comprehensive list of all eruptions this week, but rather a summary of activity that meet criteria discussed in the "Criteria and Disclaimers" section below.

Volcanic activity reported here is preliminary and subject to change. Carefully reviewed, detailed narratives over longer time periods are published as reports of the Bulletin of the Global Volcanism Network available through volcano profile pages.

Smithsonian / USGS Weekly Volcanic Activity Report for the week of 19 November-25 November 2014
Name Location Eruption Start Date Report Status
Fogo Cape Verde New
Pavlof United States New
Popocatepetl Mexico 2005 Jan 9 New
Sinarka Shiashkotan Island (Russia) New
Aira Kyushu (Japan) 2017 Mar 25 Continuing
Asosan Kyushu (Japan) Continuing
Bardarbunga Iceland Continuing
Chirpoi Kuril Islands (Russia) Continuing
Colima Mexico Continuing
Dukono Halmahera (Indonesia) 1933 Aug 13 Continuing
Kilauea Hawaiian Islands (USA) Continuing
Mayon Luzon (Philippines) Continuing
Sheveluch Central Kamchatka (Russia) 1999 Aug 15 Continuing
Shishaldin Fox Islands (USA) Continuing
Sinabung Indonesia 2020 Aug 8 Continuing
Ubinas Peru Continuing
Zhupanovsky Eastern Kamchatka (Russia) Continuing
Weekly Reports Archive

Since the Weekly Volcanic Activity Report began in November 2000, there have been 16,886 individual reports over 1,074 weeks (average of 16 per week) on 313 different volcanoes.

Search by Date



Use the dropdowns to choose the year and week for archived Weekly Reports.

Use the dropdowns to choose the year and week for archived Weekly Reports.          



Search by Volcano



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


Download Smithsonian / USGS Weekly Volcanic Activity Report Network RSS Feed

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. At the end of each report is a list of the sources used. 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. This feature was first made available on 5 March 2008.



Download Smithsonian / USGS Weekly Volcanic Activity Report Network CAP Feed

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.



Download Smithsonian/USGS Weekly Volcanic Activity Report Network Link Download Smithsonian / USGS Weekly Volcanic Activity Report Network Link

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 profile page and to the complete Weekly Report for that week. This feature was first made available on 1 April 2009.

 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.

For site security purposes and to ensure that this service remains available to all users, this government computer system employs software programs to monitor network traffic to identify unauthorized attempts to upload or change information, or otherwise cause damage. Unauthorized attempts to upload information or change information on this website are strictly prohibited and may be punishable under the Computer Fraud and Abuse Act of 1986 and the National Information Infrastructure Protection Act. Information may also be used for authorized law enforcement investigations. (Last modified September 21, 1999.)

U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA
URL: https://volcano.si.edu/reports_weekly.cfm

 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)

Report for Fogo
According to news articles an eruption from Fogo's Pico cone inside the Cha Caldera began in the morning on 23 November after increased activity detected in the previous weeks and felt earthquakes by residents the night before. The eruption started at a vent on the WSW base of Pico cone, near or at where explosions originated in 1995, and then rose from multiple vents. The activity was characterized by explosions, lava fountains, and ash emissions. About 700 people evacuated from Chã das Caldeiras and the local airport closed. During the afternoon on 24 November workers removed items from the national park headquarters and by the evening lava had overtaken the building. Lava flows had crossed a main road and taken down communication poles. The Toulouse VAAC noted that a cloud observed in satellite images composed mainly of sulfur dioxide drifted over 220 km NW at an altitude of 9.1 km (30,000 ft) a.s.l. Ash in the cloud was detected at lower altitudes. By 25 November the lava flow was 4 km long.
Sources: Darwin Volcanic Ash Advisory Centre (VAAC), BBC News, Boston
Report for Pavlof
AVO reported that seismic activity at Pavlof decreased during 21-22 November but continued to remain above background levels. Weakly elevated surface temperatures during 22 and 24-25 November, consistent with the cooling lava flow on the NW flank, were observed in satellite images. The Aviation Color Code was lowered to Yellow and the Volcano Alert Level was lowered to Advisory on 25 November; AVO noted that seismicity was at low levels during the previous week, and satellite observations show no evidence for continuing eruptive activity.
Source: US Geological Survey Alaska Volcano Observatory (AVO)
Report for Popocatepetl
CENAPRED reported that during 19-25 November seismicity at Popocatépetl indicated continuing emissions of water vapor and gas. Incandescence from the crater was visible each night. On 21 November a plume with low ash content rose 700 m above the crater and drifted NE. The Alert Level remained at Yellow, Phase Two.
Source: Centro Nacional de Prevencion de Desastres (CENAPRED)
Report for Sinarka
SVERT reported that satellite images of Sinarka showed steam-and-gas emissions on 19 November. Cloud cover obscured views on the other days during 17-24 November. The Aviation Color Code was raised to Yellow.
Source: Sakhalin Volcanic Eruption Response Team (SVERT)
Report for Aira
JMA reported that two explosions from Showa Crater at Aira Caldera’s Sakurajima volcano ejected tephra as far as 1,300 m during 17-21 November. Weak incandescence from the crater was visible during 18-19 November. The Alert Level remained at 3 (on a scale of 1-5). The Tokyo VAAC reported that on 19 November an explosion produced a plume that rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted NE. An eruption on 23 November generated a plume that rose to an altitude of 2.4 km (8,000 ft) a.s.l. and drifted E.
Sources: Japan Meteorological Agency (JMA), Tokyo Volcanic Ash Advisory Center (VAAC)
Report for Asosan
Based on JMA notices, the Tokyo VAAC reported that on 25 November an eruption from Asosan produced a plume that rose to an altitude of 1.8 km (6,000 ft) a.s.l. and drifted E.
Source: Tokyo Volcanic Ash Advisory Center (VAAC)
Report for Bardarbunga
During 18-25 November, IMO maintained Aviation Colour Code Orange due to continued activity at Bárdarbunga’s Holuhraun eruptive fissure; FLIR thermal images of the craters on 18 November showed that the most intense area of thermal convection was at the northern part of the eruption site, called Heimasæta. Lava flowed ESE. Subsidence of the Bárdarbunga caldera continued and local air pollution from gas emissions persisted. On 20 November observers characterized the eruption as pulsating explosions in the crater every 10-15 minutes, followed by a gush of lava down the main channel with splashing on either side.
Sources: Icelandic Meteorological Office (IMO), Institute of Earth Sciences
Report for Chirpoi
SVERT reported that satellite images over Snow, a volcano of Chirpoi, showed a weak thermal anomaly during 17-18 November. Cloud cover obscured views on other days during 19-24 November. The Aviation Color Code remained at Yellow.
Source: Sakhalin Volcanic Eruption Response Team (SVERT)
Report for Colima
Based on a METAR notice and satellite image analyses, the Washington VAAC reported that on 21 November an ash plume from Colima rose to an altitude of 7 km (23,000 ft) a.s.l. and drifted ENE.
Source: Washington Volcanic Ash Advisory Center (VAAC)
Report for Dukono
Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that during 19-25 November ash plumes from Dukono rose to an altitude of 2.4 km (8,000 ft) a.s.l. and drifted 20-150 km NE, WNW, W, and WSW.
Source: Darwin Volcanic Ash Advisory Centre (VAAC)
Report for Kilauea
During 19-25 November HVO reported that Kilauea’s 27 June NE-trending lava flow continued to be active. A satellite image acquired on 22 November showed that active breakouts were focused in two areas: in the upper part of the flow field about 4 km NE of Pu'u 'O'o, and above the ground crack system near an abandoned geothermal well site on Kilauea’s east rift zone. On 24 November slow-moving pahoehoe flows near the well site had advanced and were 5.7 km SW of the transfer station on Apa'a Street.

The circulating lava lake occasionally rose and fell in the deep pit within Halema'uma'u Crater. Gas emissions remained elevated. The plume from the vent continued to deposit variable amounts tephra onto nearby areas; smaller particles may have been dropped several kilometers away. At Pu'u 'O'o Crater, glow emanated from several outgassing openings in the crater floor.
Source: US Geological Survey Hawaiian Volcano Observatory (HVO)
Report for Mayon
PHIVOLCS reported that during 18-25 November white plumes rose from Mayon's crater and drifted WSW, WNW, NE, and SE, often downslope. As many as six volcanic earthquakes and one rockfall event were recorded per day. Sulfur dioxide emissions were below baseline levels. Alert Level remained at 3 (on a 0-5 scale). PHIVOLCS reminded residents of the 6-km-radius Permanent Danger Zone (PDZ) around the volcano and the 7-km Extended Danger Zone (EDZ) on the SE flank.
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
Report for Sheveluch
KVERT reported that during 14-21 November lava-dome extrusion onto Sheveluch’s N flank was accompanied by incandescence, hot avalanches, and fumarolic activity. A strong explosion at 2217 on 16 November generated a 30 x 10 km ash cloud that drifted 590 km SW. Satellite images detected a thermal anomaly over the dome during 18-20 November; cloud cover prevented views of the volcano on the other days. The Aviation Color Code remained at Orange.
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Report for Shishaldin
AVO reported that intermittent volcanic tremor at Shishaldin continued to be detected during 19-23 November. Elevated crater temperatures were detected in satellite images during periods of clear weather; thermal anomalies were reported during 21-22 November. Seismic activity increased sharply on 24 November, suggesting that the eruption had intensified. Strong thermal anomalies near the summit were detected in satellite images. On 25 November seismicity remained elevated and strongly elevated surface temperatures continued to be detected in satellite images. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch.
Source: US Geological Survey Alaska Volcano Observatory (AVO)
Report for Sinabung
Based on webcam views and weather models, the Darwin VAAC reported that duirng 19-20 November eruptions from Sinabung produced ash plumes that rose to an altitude of 4.3 km (14,000 ft) a.s.l. and drifted W. Continuous dense white plumes and intermittent pyroclastic flows were also visible. During 22-23 November intermittent pyroclastic flows recorded by the webcam reached the base of the volcano. On 23 November an ash plume rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted S.
Source: Darwin Volcanic Ash Advisory Centre (VAAC)
Report for Ubinas
According to IGP a small 64-second-long explosion at Ubinas, that started at 0741 on 23 November, produced an ash plume that rose 2.5 km above the crater's base and drifted S and SE. A second explosion occurred at 1004 and generated an ash plume that rose 2.2 km and drifted S. Residents of Ubinas felt a slight rumble at the time of the second explosion.
Source: Instituto Geofísico del Perú (IGP)
Report for Zhupanovsky
KVERT reported that a moderate explosive eruption at Zhupanovsky likely continued during 14-21 November. Satellite images showed that the volcano was either quiet or obscured by clouds. The Aviation Color Code remained at Orange.
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)