All times are local unless otherwise stated.

San Miguel | 4 March-10 March 2020 | New Activity / Unrest Cite this Report
San Miguel Eastern El Salvador	SNET stated that during 28 February-6 March there were no reports of noises or gas emissions at San Miguel from the network of local observers. Seismicity was stable; 50-60 low-magnitude earthquakes were recorded per hour with RSAM values between 40 and 98 units, lower than the normal values of 150. The sulfur dioxide emission flux was 517-808 tons per day. Source: Servicio Nacional de Estudios Territoriales (SNET)
Sangay | 4 March-10 March 2020 | New Activity / Unrest Cite this Report
Sangay Ecuador	IG reported a high level of activity at Sangay during 3-10 March. Ash plumes rose 870-1,130 m above the summit and drifted NW and W based on Washington VAAC notices. Incandescent blocks rolled down the SW flank during 3-4 March. A seismic station recorded a lahar on 8 March. Source: Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN)
Semeru | 4 March-10 March 2020 | New Activity / Unrest Cite this Report
Semeru Eastern Java	BNPB and PVMBG reported that on 3 March a pyroclastic flow was generated from collapsing material at the end of a 750-m-long lava flow on Semeru’s S flank. The pyroclastic flow lasted nine minutes based on seismic data, traveled as far as 2.3 km down the S flank, and was documented and reported at 1733 by the Malang Subagyo district Badan Penanggulangan Bencana Daerah (BPBD). During 3-8 March black-gray eruptive plumes rose 200 m above the summit, interspersed with 100-m-high white gas plumes. Incandescent material was ejected 10-50 m above the summit; lava flows 500-1,000 m long continued to be active in the Kembar, Bang, and Kobokan drainages (on the S flank). The Alert Level remained at 2 (on a scale of 1-4), and the public was reminded to stay outside of the general 1-km radius from the summit and 4 km on the SSE flank. Sources: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM), Badan Nacional Penanggulangan Bencana (BNPB)

Aira | 4 March-10 March 2020 | Continuing ActivityCite this Report
Aira Kyushu (Japan)	JMA reported that during 2-9 March incandescence from Minamidake Crater (at Aira Caldera’s Sakurajima volcano) was visible nightly. Occasional eruptive events were recorded. An eruption at 0457 on 7 March generated an ash plume that rose 1.3 km above the crater rim. The Alert Level remained at 3 (on a 5-level scale). Source: Japan Meteorological Agency (JMA)
Dukono | 4 March-10 March 2020 | Continuing ActivityCite this Report
Dukono Halmahera	Based on satellite and wind model data, and information from PVMBG, the Darwin VAAC reported that during 5-10 March ash plumes from Dukono rose to 1.8-2.1 km (6,000-7,000 ft) a.s.l. and drifted NE, E, and SE. The Alert Level remained at 2 (on a scale of 1-4), and the public was warned to remain outside of the 2-km exclusion zone. Sources: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM), Darwin Volcanic Ash Advisory Centre (VAAC)
Ebeko | 4 March-10 March 2020 | Continuing ActivityCite this Report
Ebeko Paramushir Island (Russia)	Volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, observed explosions during 1-2 and 5 March that sent ash plumes up to 2 km (6,600 ft) a.s.l. Ash plumes drifted S and E. The Aviation Color Code remained at Orange (the second highest level on a four-color scale). Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Etna | 4 March-10 March 2020 | Continuing ActivityCite this Report
Etna Sicily (Italy)	INGV reported continuing eruptive activity at Etna’s Voragine Crater (VOR), New Southeast Crater (NSEC), and Northeast Crater (NEC) during 24 February-1 March. Strombolian explosions from the vent at the top of the cone in VOR crater ejected pieces of lava sometimes 150-200 m above the vent. Ash plumes rose from the vent and rapidly dissipated. Strombolian activity from a vent at the base of the N flank of the cone was observed on 29 February. Lava continued to effuse from the vent on top of a building lava mound on the S flank of the cone and flow into the adjacent Bocca Nuova Crater. Activity at NEC was characterized by discontinuous Strombolian activity and periodic emissions of very diffuse ash plumes. During 24-25 February observers noted continuous diffuse ash emissions at NSEC, originating from a cone in the saddle area. Source: Sezione di Catania - Osservatorio Etneo (INGV)
Ibu | 4 March-10 March 2020 | Continuing ActivityCite this Report
Ibu Halmahera	The Darwin VAAC reported that on 10 March multiple discrete ash plumes from Ibu rose to 2.1 km (7,000 ft) a.s.l. and drifted SE based on satellite images, weather models, and information from PVMBG. The Alert Level remained at 2 (on a scale of 1-4), and the public was warned to stay at least 2 km away from the active crater, and 3.5 km away on the N side. Sources: Darwin Volcanic Ash Advisory Centre (VAAC), Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
Kerinci | 4 March-10 March 2020 | Continuing ActivityCite this Report
Kerinci Central Sumatra	PVMBG reported that at 0710 on 4 March, 1625 on 5 March, and 0655 on 6 March brown ash emissions rose 200-500 m above Kerinci’s summit and drifted NW and NE. The Alert Level remained at 2 (on a scale of 1-4), and the public was warned to remain outside of the 3-km exclusion zone. Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
Klyuchevskoy | 4 March-10 March 2020 | Continuing ActivityCite this Report
Klyuchevskoy Central Kamchatka (Russia)	KVERT reported that Strombolian activity at Klyuchevskoy was visible during 28 February-6 March, and a bright thermal anomaly was identified in satellite images those same days. A gas-and-steam plume containing some ash drifted 60 km WNW on 2 March. The Aviation Color Code remained at Orange. Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Sheveluch | 4 March-10 March 2020 | Continuing ActivityCite this Report
Sheveluch Central Kamchatka (Russia)	KVERT reported that a thermal anomaly over Sheveluch was identified in satellite images during 28 February-6 March. The Aviation Color Code remained at Orange (the second highest level on a four-color scale). Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Stromboli | 4 March-10 March 2020 | Continuing ActivityCite this Report
Stromboli Aeolian Islands (Italy)	INGV reported that during 24 February-3 March activity at Stromboli was characterized by ongoing explosive activity mainly from three vents in Area N (north crater area) and at least three vents in Area C-S (south-central crater area). Variable-intensity explosions from Area N occurred at a rate of 7-10 events per hour and ejected lapilli and bombs 80-150 m above the vents. Ejected tephra fell onto the flanks and some blocks rolled down the Sciara del Fuoco to the coast. Explosions from Area C-S occurred at a rate of 2-9 events per hour and ejected coarse material mixed with ash to heights less than 150 m above the vents. Source: Sezione di Catania - Osservatorio Etneo (INGV)
Suwanosejima | 4 March-10 March 2020 | Continuing ActivityCite this Report
Suwanosejima Ryukyu Islands (Japan)	JMA reported that during 28 February-6 March incandescence from Suwanosejima’s Ontake Crater was visible nightly. Occasional eruptive events and two explosions were recorded; ash plumes rose as high as 900 m above the crater rim. Occasional eruption sounds were reported in a village 4 km SSW on 3 March. The Alert Level remained at 2 (on a 5-level scale). Source: Japan Meteorological Agency (JMA)
Taal | 4 March-10 March 2020 | Continuing ActivityCite this Report
Taal Luzon (Philippines)	PHIVOLCS reported that during 4-10 March weak steam plumes rose 50-100 m above Taal’s Volcano Island lake and drifted SW and NE; moderate steam plumes rose 300-500 m and drifted SW during 8-9 March. According to the Disaster Response Operations Monitoring and Information Center (DROMIC) there were a total of 4,212 people in 11 evacuation centers, and an additional 32,631 people were staying at other locations as of 6 March. The Alert Level remained at 2 (on a scale of 0-5) and PHIVOLCS recommended no entry onto Volcano Island, the area defined as the Permanent Danger Zone. Sources: Philippine Institute of Volcanology and Seismology (PHIVOLCS), Disaster Response Operations Monitoring and Information Center (DROMIC)
Whakaari/White Island | 4 March-10 March 2020 | Continuing ActivityCite this Report
Whakaari/White Island North Island (New Zealand)	On 10 March GeoNet reported that data collected during recent flights over White Island showed elevated gas emissions compared to previous measurements, though overall both carbon dioxide and sulfur dioxide flux have decreased since the 9 December 2019 eruption. Thermal infrared data indicated that the fumarolic gases and the five lobes of lava in the main vent remained very hot; the hottest temperature was 746 degrees Celsius and was the highest temperature measured to date. Small-scale jetting occurred from the small pond that had formed in the vent area, similar to September-December 2019 activity. The Volcanic Alert Level remained at 2 and the Aviation Color Code remained at Yellow. Source: GeoNet

Weekly Reports Archive

Since the Weekly Volcanic Activity Report began in November 2000, there have been 19,996 individual reports over 1,215 weeks (average of 16 per week) on 332 different volcanoes.

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

 News Feeds and Google Placemarks

 Criteria & Disclaimers

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.

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 cover longer time periods and are 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)