All times are local unless otherwise stated.

Bezymianny | 20 March-26 March 2019 | New Activity / Unrest Cite this Report
Bezymianny Central Kamchatka (Russia)	KVERT reported that after a powerful explosive eruption at Bezymianny recorded on 15 March activity was characterized by growth of the W part of the lava dome, strong fumarolic activity, and dome incandescence. The Aviation Color Code was lowered to Yellow (the second lowest level on a four-color scale) on 21 March. Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Tengger Caldera | 20 March-26 March 2019 | New Activity / Unrest Cite this Report
Tengger Caldera Eastern Java	PVMBG reported that during 19-26 March ash plumes of variable densities and colors ranging from white to black rose as high as 1.2 km above the crater rim of Tengger Caldera’s Bromo cone. The ash plumes drifted in multiple directions. The Alert Level remained at 2 (on a scale of 1-4), and visitors were warned to stay outside of a 1-km radius of the crater. Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
Villarrica | 20 March-26 March 2019 | New Activity / Unrest Cite this Report
Villarrica Central Chile	On 20 March POVI reported that lava fountains at Villarrica were visible rising almost 50 m above the crater rim. They noted that, despite low seismicity, Strombolian explosions on 24 March ejected material more than 25 m above the crater rim. Source: Proyecto Observación Villarrica Internet (POVI)

Agung | 20 March-26 March 2019 | Continuing ActivityCite this Report
Agung Bali	PVMBG reported that at 0018 on 21 March an event at Agung was recorded for 1 minute and 47 seconds by the seismic network. Weather conditions prevented visual observations of the summit. The Alert Level remained at 3 (on a scale of 1-4) with the exclusion zone set at a 4-km radius. Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
Aira | 20 March-26 March 2019 | Continuing ActivityCite this Report
Aira Kyushu (Japan)	JMA reported that during 18-22 March there were two events and one explosion recorded at Minamidake crater (at Aira Caldera’s Sakurajima volcano). Plumes rose at least as high as 1.7 km above the crater rim. Small events occasionally occurred during 22-25 March; crater incandescence was visible at night on 24 March. The Alert Level remained at 3 (on a 5-level scale). Source: Japan Meteorological Agency (JMA)
Dukono | 20 March-26 March 2019 | Continuing ActivityCite this Report
Dukono Halmahera	Based on satellite and wind model data, the Darwin VAAC reported that during 20-22 and 24 March ash plumes from Dukono rose to altitudes of 2.1-2.4 km (7,000-8,000 ft) a.s.l. and drifted in multiple directions. The Alert Level remained at 2 (on a scale of 1-4), and visitors were 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 | 20 March-26 March 2019 | Continuing ActivityCite this Report
Ebeko Paramushir Island (Russia)	Volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, observed explosions during 15, 16-19, and 21 March that sent ash plumes up to 4.5 km (14,800 ft) a.s.l. Ash fell in Severo-Kurilsk during 15-16 and 21 March. The Aviation Color Code remained at Orange (the second highest level on a four-color scale). Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Fuego | 20 March-26 March 2019 | Continuing ActivityCite this Report
Fuego South-Central Guatemala	On 22 March INSIVUMEH reported that activity at Fuego had increased during the previous few days. There were 15-20 explosions per hour producing ash plumes that rose as high as 1.3 km above the summit and drifted 20-30 km E, SE, S, SW, and W. Ashfall was reported in communities downwind including La Rochela, Ceylán, San Andrés Osuna, Las Palmas, Siquinalá, and Santa Lucia Cotzumalguapa (23 km SW). Shock waves vibrated residential structures within 20 km. The explosions also caused avalanches of material from the crater that traveled down the Seca (W), Ceniza (SSW), Taniluyá (SW), Trinidad (S), Las Lajas (SE), and Honda ravines. In the evening on 21 March and early morning hours of 22 March lava fountains rose 350 m above the summit. During 23-26 March explosions occurred at a rate of 15-25 per hour, generating ash plumes that rose as high as 1.2 km and drifted 15-20 km W, S, and SE. Explosions sometimes vibrated nearby residences. Incandescent material was ejected 200-300 m high and caused avalanches of material that traveled down Seca, Taniluyá, Ceniza, Trinidad, Las Lajas, and Honda ravines, sometimes reaching vegetated areas. Ashfall as reported in areas downwind including Panimache I (8 km SW), Morelia (8 km SW), Santa Sofia (12 km SE), La Rochela, and San Andrés Osuna. Source: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH)
Ibu | 20 March-26 March 2019 | Continuing ActivityCite this Report
Ibu Halmahera	The Darwin VAAC reported that a minor ash plume from Ibu rose to an altitude of 2.4 km (8,000 ft) a.s.l., drifted about 17 km NE, and dissipated. An ash plume rose to an altitude of 2.1 km (7,000 ft) a.s.l. later that day, and to 2.4 km on 23 March; both plumes drifted E. 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)
Karymsky | 20 March-26 March 2019 | Continuing ActivityCite this Report
Karymsky Eastern Kamchatka (Russia)	KVERT reported that a thermal anomaly over Karymsky was visible in satellite images on 17 March. The volcano was quiet or obscured by clouds on the other days during 15-22 March. The Aviation Color Code remained at Orange (the second highest level on a four-color scale). Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Kilauea | 20 March-26 March 2019 | Continuing ActivityCite this Report
Kilauea Hawaiian Islands (USA)	HVO reported that during the previous several months monitoring data at Kilauea showed relatively low rates of seismicity, deformation, and gas emissions at the summit and East Rift Zone (ERZ) (including the area of the 2018 eruption). As a result, HVO lowered the Volcano Alert Level to Normal and the Aviation Color Code to Green. Source: US Geological Survey Hawaiian Volcano Observatory (HVO)
Krakatau | 20 March-26 March 2019 | Continuing ActivityCite this Report
Krakatau Sunda Strait	PVMBG reported that a total of six explosions at Anak Krakatau were recorded on 18 March, with dense white plumes rising as high as 500 m from the summit. During 18-24 March no other plumes were noted although weather conditions often prevented visual observations. Events were recorded at 0301 and 0305 on 24 March, though ash plumes were not visible. The Alert Level remained at 3 (on a scale of 1-4), and residents were warned to remain outside of the 5-km radius hazard zone from the crater. [Correction: the Alert Level was lowered to 2 on 25 March, and the hazard zone was adjusted to a 2-km radius.] Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
Manam | 20 March-26 March 2019 | Continuing ActivityCite this Report
Manam Northeast of New Guinea	The Darwin VAAC reported that during 19-22 March ash plumes from Manam rose to an altitude of 4.6 km (15,000 ft) a.s.l. and drifted E and SE based on satellite data and ground-based observations. Source: Darwin Volcanic Ash Advisory Centre (VAAC)
Merapi | 20 March-26 March 2019 | Continuing ActivityCite this Report
Merapi Central Java	PVMBG reported that the slow extrusion of a lava dome in Merapi’s summit crater continued during 17-24 March. By 21 March the lava dome had grown to an estimated size of 472,000 cubic meters based on analyses of drone footage. There were no apparent morphological changes; most of the extruded lava fell into the upper parts of the Gendol River drainage on the SE flank. Block-and-ash flows traveled as far as 1,500 m down the Gendol drainage during 18-19 and 23 March. The Alert Level remained at 2 (on a scale of 1-4), and residents were warned to remain outside of the 3-km exclusion zone. Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
Rincon de la Vieja | 20 March-26 March 2019 | Continuing ActivityCite this Report
Rincon de la Vieja Costa Rica	OVSICORI-UNA reported that a small event at Rincón de la Vieja was recorded at 1851 on 19 March. Source: Observatorio Vulcanologico y Sismologico de Costa Rica-Universidad Nacional (OVSICORI-UNA)
Sheveluch | 20 March-26 March 2019 | Continuing ActivityCite this Report
Sheveluch Central Kamchatka (Russia)	KVERT reported that a thermal anomaly over Sheveluch’s lava dome was identified daily in satellite images during 15-22 March. Strong gas-and-steam emissions containing variable amounts of ash rose 3.5-4 km (11,500-13,100 ft) a.s.l. and drifted 105 km E during 15-17 March. The Aviation Color Code remained at Orange (the second highest level on a four-color scale). Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Suwanosejima | 20 March-26 March 2019 | Continuing ActivityCite this Report
Suwanosejima Ryukyu Islands (Japan)	JMA reported that crater incandescence at Suwanosejima’s Ontake Crater was visible at night during 15-22 March. Small events were occasionally recorded, generating plumes that rose as high as 600 m above the crater rim. The Alert Level remained at 2 (on a 5-level scale). Source: Japan Meteorological Agency (JMA)
Turrialba | 20 March-26 March 2019 | Continuing ActivityCite this Report
Turrialba Costa Rica	OVSICORI-UNA reported a period of continuous emissions from Turrialba during 20-22 March. The emissions were characterized as white water vapor plumes with periodic pulses of diffuse ash rising 300 m above the vent rim and drifting W and SW. A sulfur odor was noted in Tierra Blanca de Cartago on 22 March. Only water vapor plumes with a low concentration of magmatic gases were visible during 23-26 March. Source: Observatorio Vulcanologico y Sismologico de Costa Rica-Universidad Nacional (OVSICORI-UNA)

Weekly Reports Archive

Since the Weekly Volcanic Activity Report began in November 2000, there have been 19,363 individual reports over 1,185 weeks (average of 16 per week) on 331 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.

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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)