All times are local unless otherwise stated.

Chirinkotan (Russia) | 1 March-7 March 2017 | New Activity / Unrest Cite this Report
Chirinkotan Kuril Volcanic Arc	Based on satellite images, SVERT reported that on 1 March an ash plume from Chirinkotan rose to an altitude of 5.5 km (18,000 ft) a.s.l. and drifted 165 km E. The Aviation Color Code remained at Yellow (on a four-color scale). Source: Sakhalin Volcanic Eruption Response Team (SVERT)
Etna (Italy) | 1 March-7 March 2017 | New Activity / Unrest Cite this Report
Etna Sicily Volcanic Province	INGV reported that Strombolian activity at Etna’s New Southeast Crater (NSEC) cone had gradually intensified beginning at 1700 on 27 February. Lava overflowed the vent, quickly traveled down the S flank, and then slowed after reaching the gently sloping terrain. The flow spread SSW, towards the old cone of Monte Frumento Supino. During 27-28 February frequent Strombolian explosions ejected incandescent lava fragments up to 200 m above the vent. During a field survey on 28 February INGV-Osservatorio Etneo staff observed sporadic emissions of vapor and brownish ash from several vents within the NSEC. A new pyroclastic cone around the vent had grown higher than the highest points on the SEC (Southeast Crater) or NSEC. The lava flow slowly advanced on top of the snow, and by 1 March was about 1.5 km from the vent. By the late evening, activity declined, and the volcanic tremor amplitude rapidly diminished. Source: Sezione di Catania - Osservatorio Etneo (INGV)
Klyuchevskoy (Russia) | 1 March-7 March 2017 | New Activity / Unrest Cite this Report
Klyuchevskoy Eastern Kamchatka Volcanic Arc	KVERT reported that a thermal anomaly over Klyuchevskoy was identified in satellite data during 25 February and 1-2 March. At 1340 on 2 March a gas, steam, and ash plume recorded by the webcam rose to altitudes of 8-9 km (26,000-30,000 ft) a.s.l. and drifted 110 km NE and NW. The Aviation Color Code was raised to Orange (the second highest level on a four-color scale). Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Pacaya (Guatemala) | 1 March-7 March 2017 | New Activity / Unrest Cite this Report
Pacaya Central America Volcanic Arc	INSIVUMEH reported that during 2-3 and 6-7 March weak Strombolian explosions at Pacaya’s Mackenney cone ejected material 5-10 m above the crater rim. Crater incandescence was visible at night and at dawn during 4-5 March. Source: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH)
Piton de la Fournaise (France) | 1 March-7 March 2017 | New Activity / Unrest Cite this Report
Piton de la Fournaise Reunion Hotspot Volcano Group	OVPF reported that the 28-day eruption at Piton de la Fournaise, beginning on 31 January and ending on 27 February, produced less than 10 million cubic meters of lava. Source: Observatoire Volcanologique du Piton de la Fournaise (OVPF)

Bagana (Papua New Guinea) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Bagana Solomon Volcanic Arc	Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that during 4-5 and 7 March ash plumes from Bagana rose to altitudes of 2.1-2.4 km (7,000-8,000 ft) a.s.l. and drifted 65 km W and SW. Source: Darwin Volcanic Ash Advisory Centre (VAAC)
Bogoslof (United States) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Bogoslof Aleutian Ridge Volcanic Arc	AVO reported that no significant volcanic activity at Bogoslof had been detected in seismic, infrasound, or sometimes cloudy satellite data during 1-7 March. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Warning. Source: US Geological Survey Alaska Volcano Observatory (AVO)
Bulusan (Philippines) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Bulusan Eastern Philippine Volcanic Arc	PHIVOLCS reported that a weak phreatic eruption at Bulusan occurred at 1357 on 2 March. The event was recorded by the seismic network as an explosion-type earthquake followed by short-duration tremor that lasted approximately 26 minutes. Visual observations were obscured by weather clouds, although a small steam plume rising from the SE vent was recorded by a webcam. The Alert Level remained at 1, indicating abnormal conditions and a 4-km-radius Permanent Danger Zone (PDZ). Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
Cleveland (United States) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Cleveland Aleutian Ridge Volcanic Arc	AVO reported that during 1-4 and 6-7 March slightly elevated surface temperatures were identified in satellite images of Cleveland, along with minor steaming from the summit visible in clear webcam images during 1-3 March. Cloud cover prevented views on 5 March. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch. Source: US Geological Survey Alaska Volcano Observatory (AVO)
Dukono (Indonesia) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Dukono Halmahera Volcanic Arc	Based on analyses of satellite imagery and wind model data, the Darwin VAAC reported that during 1-3 and 5-6 March ash plumes from Dukono rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted SW, S, SE, and E. Source: Darwin Volcanic Ash Advisory Centre (VAAC)
Ebeko (Russia) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Ebeko Kuril Volcanic Arc	KVERT reported that, according to observers in Severo-Kurilsk (Paramushir Island) about 7 km E, explosions at Ebeko on 24, 26, and 27 February and 2 March produced ash plumes that rose as high as an altitude of 2.5 km (8,200 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)
Kilauea (United States) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Kilauea Hawaiian-Emperor Hotspot Volcano Group	During 1-7 March HVO reported that the lava lake continued to rise and fall, circulate, and spatter in Kilauea’s Overlook vent. Webcams recorded incandescence from long-active sources within Pu'u 'O'o Crater, from a vent high on the NE flank of the cone, 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, continued to enter the ocean at Kamokuna. Surface lava flows were active on the coastal plain, along the E side of 61G, about 500 m upslope of the FEMA emergency road. Other surface flows above the pali appeared during 1-2 March. Source: US Geological Survey Hawaiian Volcano Observatory (HVO)
Manam (Papua New Guinea) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Manam Bismarck Volcanic Arc	Based on a pilot observation, the Darwin VAAC reported that on 3 March an ash plume from Manam rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted N. Source: Darwin Volcanic Ash Advisory Centre (VAAC)
Nevado del Ruiz (Colombia) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Nevado del Ruiz Andean Northern Volcanic Arc	Based on satellite images, the Washington VAAC reported that on 4 March an ash plume from Nevado del Ruiz rose to an altitude of 7.6 km (25,000 ft) a.s.l. and drifted over 31 km NW. Source: Washington Volcanic Ash Advisory Center (VAAC)
Sabancaya (Peru) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Sabancaya Andean Central Volcanic Arc	Based on webcam images, satellite views, and seismic data the Buenos Aires VAAC reported that during 1-4 and 6-7 March sporadic gas-and-ash puffs rose from Sabancaya. Weather clouds often hindered observations of the volcano. On 3 March ash plumes rose to altitudes of 9.1-10.4 km (30,000-34,000 ft) a.s.l. and drifted W, SW, and S. Intermittent increases in seismicity were also detected that day. Source: Buenos Aires Volcanic Ash Advisory Center (VAAC)
Sheveluch (Russia) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Sheveluch Eastern Kamchatka Volcanic Arc	KVERT reported that during 24 February-3 March lava-dome extrusion onto Sheveluch’s N flank was accompanied by strong fumarolic activity, dome incandescence, ash explosions, and hot avalanches. Explosions on 24 February generated ash plumes that rose to an altitude of 5 km (16,400 ft) a.s.l. and drifted E. Satellite images showed a daily thermal anomaly over the dome, and ash plumes that drifted 95 km NE during 25-26 February. The Aviation Color Code remained at Orange. Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Sinabung (Indonesia) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Sinabung Sunda Volcanic Arc	Based on PVMBG observations, satellite data, webcam images, and wind data, the Darwin VAAC reported that during 1-2, 5, and 7 March ash plumes from Sinabung rose to altitudes of 3-4.3 km (10,000-14,000 ft) a.s.l. and drifted N, NW, W, and SW. Source: Darwin Volcanic Ash Advisory Centre (VAAC)
Suwanosejima (Japan) | 1 March-7 March 2017 | Continuing ActivityCite this Report
Suwanosejima Ryukyu Volcanic Arc	Based on JMA notices and satellite-image analyses, the Tokyo VAAC reported that during 3-4 March explosions at Suwanosejima generated ash plumes that rose to altitudes of 1.5-1.8 km (5,000-6,000 ft) a.s.l. and drifted SE Source: Tokyo Volcanic Ash Advisory Center (VAAC)

Weekly Reports Archive

Since the Weekly Volcanic Activity Report began in November 2000, there have been 20,322 individual reports over 1,229 weeks (average of 17 per week) on 336 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)