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Smithsonian / USGS Weekly Volcanic Activity Report

You are currently viewing Archived reports for the week of 14 March-20 March 2018.


















 Activity for the week of 14 March-20 March 2018

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
Ambae Vanuatu New
Kick 'em Jenny North of Grenada New
Kikai Japan New
Kirishimayama Kyushu (Japan) New
Stromboli Aeolian Islands (Italy) New

Aira Kyushu (Japan) Ongoing
Ambrym Vanuatu Ongoing
Cleveland Chuginadak Island (USA) Ongoing
Dukono Halmahera (Indonesia) Ongoing
Ebeko Paramushir Island (Russia) Ongoing
Kadovar Papua New Guinea Ongoing
Kilauea Hawaiian Islands (USA) Ongoing
Kusatsu-Shiranesan Honshu (Japan) Ongoing
Mayon Luzon (Philippines) Ongoing
Sabancaya Peru Ongoing
Sheveluch Central Kamchatka (Russia) Ongoing
Suwanosejima Ryukyu Islands (Japan) Ongoing
Yasur Vanuatu Ongoing


New Activity / Unrest


Volcano index photo  Ambae  | Vanuatu  | 15.389°S, 167.835°E  | Elevation 1496 m

On 18 March the Vanuatu Geohazards Observatory (VGO) reported that eruptive activity at Ambae’s Lake Voui during February-March was similar to activity observed at the end of October 2017, but with more sustained ash emissions from explosions at the vent. The ongoing ash-and-gas emissions were impacting local villages, prompting VGO to raise the Alert Level to 3 (on a scale of 0-5) and to warn residents and tourists to stay outside of the Danger Zone defined as a 3-km radius around the active vent in Lake Voui. A news article noted that ashfall was reported in the NW, W, SW, and S parts of the island.

Sources: Radio New Zealand, Vanuatu Meteorology and Geo-Hazards Department (VMGD)



Volcano index photo  Kick 'em Jenny  | North of Grenada  | 12.3°N, 61.64°W  | Elevation -185 m

The University of the West Indies (UWI) Seismic Research Centre (SRC) and the National Disaster Management Agency (NaDMA) reported that during 12-15 March seismicity at Kick 'em Jenny significantly decreased. The Alert Level remained at Orange (the second highest level on a four-color scale) with a 5-km maritime exclusion zone.

Sources: Seismic Research Unit, University of the West Indies, National Disaster Management Agency (NaDMA)



Volcano index photo  Kikai  | Japan  | 30.793°N, 130.305°E  | Elevation 704 m

JMA reported that one small-amplitude, short-duration volcanic tremor was detected on 16 March at Satsuma Iwo-jima, a subaerial part of Kikai’s NW caldera rim. The number of volcanic earthquakes increased on 19 March, prompting JMA to raise the Alert Level to 2 (on a 5-level scale), and then decreased the next day. The report noted increased thermal activity since February, with occasional visual observations of incandescence.

Source: Japan Meteorological Agency (JMA)



Volcano index photo  Kirishimayama  | Kyushu (Japan)  | 31.934°N, 130.862°E  | Elevation 1700 m

JMA reported that the eruption at Shinmoedake (Shinmoe peak), a stratovolcano of the Kirishimayama volcano group, continued during 13-19 March. Lava effusion possibly stopped on 9 March, though the lava flow on the NW flank continued to advance. An explosion at 1413 on 15 March generated a gray-white plume that rose 2.1 km above the crater and ejected material 1 km from the crater. A high number of volcanic earthquakes continued to be recorded, in addition to many low-frequency earthquakes with shallow hypocenters. Volcanic tremor was occasionally recorded. The Alert Level remained at 3 (on a scale of 1-5).

Source: Japan Meteorological Agency (JMA)



Volcano index photo  Stromboli  | Aeolian Islands (Italy)  | 38.789°N, 15.213°E  | Elevation 924 m

INGV reported that during 12-17 March activity at Stromboli was at normal levels, characterized by explosive activity and gas emissions from two vents (N1 and N2) in Area N and two vents in Area C-S (C and S2). Explosions at N1 ejected lapilli, bombs, and sometimes ash less than 120 m high, and less intense explosions at N2 emitted ash no higher than 80 m. The frequency of explosions in Area N was 3-8 events/hour. Continuous gas emissions rose from C. Explosions at S2 emitted ash no higher than 80 m at a rate of 2-5 explosions/hour. A high-energy explosive sequence began at vent C at 2027 on 19 March and lasted about 40 seconds. The first explosion ejected ash and incandescent material that fell in a radial distribution around the crater. Two subsequent explosions ejected incandescent material as high as 80 m. Tephra fell along the Sciara del Fuoco, towards the NE parts of the island. At 2028 an explosion at N2 ejected lapilli 100-120 m high.

Source: Sezione di Catania - Osservatorio Etneo (INGV)



Ongoing Activity


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

JMA reported that during 12-19 March there were seven events and six explosions at Minamidake crater (at Aira Caldera’s Sakurajima volcano). Some of the explosions ejected tephra as far as 1.1 km and generated ash plumes that rose 1.7-2.3 km above the crater rim. The Alert Level remained at 3 (on a 5-level scale).

Source: Japan Meteorological Agency (JMA)



Volcano index photo  Ambrym  | Vanuatu  | 16.25°S, 168.12°E  | Elevation 1334 m

On 19 March the Vanuatu Geohazards Observatory (VGO) reported that, based on photos taken during February-March, the lava lakes in Ambrym’s Benbow and Marum craters continued to be active and produced gas-and-steam emissions. Visitors occasionally reported smelling volcanic gases and hearing explosions. The Alert Level remained at 2 (on a scale of 0-5); the report reminded the public to stay outside of the Permanent Danger Zone defined as a 1-km radius from Benbow Crater and a 2.7-km radius from Marum Crater.

Source: Vanuatu Meteorology and Geo-Hazards Department (VMGD)



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

AVO reported that seismic and infrasound sensors recorded a small explosion at Cleveland at 2219 on 14 March; ash plumes were not visible in subsequent cloudy satellite images. The Aviation Color Code remained at Yellow and the Volcano Alert Level remained at Advisory.

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 14-20 March ash plumes from Dukono rose to altitudes of 1.8-2.7 km (6,000-9,000 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 12-13 March generated ash plumes that rose as high as 2.7 km (8,900 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  Kadovar  | Papua New Guinea  | 3.608°S, 144.588°E  | Elevation 365 m

RVO reported that the lava dome at Kadovar’s SE Coastal Vent continued to grow, though slowly, with only a 1-m change detected during 10-20 March. Weak incandescence from the Main Crater was visible on 13 March. Bright incandescence from both the Main Crater and the SE Coastal vent was visible on 14 March, coincident with the start of dark gray ash emissions from both vents, lasting until 19 March.

Source: Rabaul Volcano Observatory (RVO)



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

During 14-20 March HVO reported that the lava lake continued to rise, fall, and spatter in Kilauea’s Overlook crater. Webcams recorded incandescence from a small lava pond in a pit on the W side of Pu'u 'O'o Crater. Surface lava flows were active above and on Pulama pali.

Source: US Geological Survey Hawaiian Volcano Observatory (HVO)



Volcano index photo  Kusatsu-Shiranesan  | Honshu (Japan)  | 36.618°N, 138.528°E  | Elevation 2165 m

On 16 March JMA lowered the Alert Level for the Kusatsu-Shiranesan complex to 2 (on a 5-level scale) noting that the number of volcanic earthquakes had gradually declined since the 23 January eruption; seismicity remained elevated.

Source: Japan Meteorological Agency (JMA)



Volcano index photo  Mayon  | Luzon (Philippines)  | 13.257°N, 123.685°E  | Elevation 2462 m

PHIVOLCS reported that during 13-20 March activity at Mayon was mostly characterized by periods of gravity-driven lava advancement, gas-and-steam emissions, rockfalls, and quiescence. Lava flows extended 3.3 km, 4.5 km, and 1.9 km long in the Mi-isi (S), Bonga (SE), and Basud (E) drainages, respectively. Sulfur dioxide emissions were between 969 and 2,077 tonnes/day. Steam-and-gas emissions drifted SW. An episode of lava fountaining was recorded during 0831-0832 on 14 March and produced a light-gray ash plume that rose 200 m above the crater and drifted SW. At 1347 on 16 March a pyroclastic flow traveled 4-5 km down the Mi-isi and Basud drainages. The Alert Level remained at 3 (on a 0-5 scale) and PHIVOLCS reminded residents to stay away from the 6-km-radius Permanent Danger Zone and the 7-km Extended Danger Zone on the SSW and ENE flanks.

Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)



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; explosions averaged 17 per day during 12-18 March. Seismicity was dominated by long-period events, with signals indicating emissions. Gas-and-ash plumes rose 3 km above the crater rim and drifted 30 km NW, SW, and S. The sulfur dioxide flux was high, at 3,110 tons per day on 14 March. 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  Sheveluch  | Central Kamchatka (Russia)  | 56.653°N, 161.36°E  | Elevation 3283 m

KVERT reported that a weak thermal anomaly over Sheveluch was identified in satellite images during 11-14 March. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



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 17 March an eruption at Suwanosejima produced a plume that rose 1.8 km (6,000 ft) a.s.l. and drifted W.

Source: Japan Meteorological Agency (JMA)



Volcano index photo  Yasur  | Vanuatu  | 19.532°S, 169.447°E  | Elevation 361 m

Based on visual observations and satellite data, the Vanuatu Geohazards Observatory reported on 19 March that explosions at Yasur remained strong. The Alert Level remained at 2 (on a scale of 0-4). VGO reminded residents and tourists that hazardous areas were near and around the volcanic crater, within a 395-m-radius permanent exclusion zone, and that volcanic ash and gas could reach areas impacted by trade winds.

Source: Vanuatu Meteorology and Geo-Hazards Department (VMGD)



Weekly Reports Archive

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Bezymianny Inielika Nabro Stromboli
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Calbuco Kaba Nisyros Suwanosejima
Callaqui Kadovar Novarupta Taal
Cameroon Kambalny NW Rota-1 Tair, Jebel at
Campi Flegrei del Mar di Sicilia Kanaga Nyamuragira Takawangha
Cayambe Kanlaon Nyiragongo Talang
Cereme Karangetang Okataina Tambora
Chachadake [Tiatia] Karkar Okmok Tanaga
Chaiten Karthala Ontakesan Tandikat-Singgalang
Chiginagak Karymsky Oraefajokull Tangkoko-Duasudara
Chikurachki Kasatochi Osorno Tangkubanparahu
Chiles-Cerro Negro Katla Pacaya Tara, Batu
Chillan, Nevados de Kavachi Pagan Telica
Chirinkotan Kelimutu Palena Volcanic Group Tenerife
Chirpoi Kelut Paluweh Tengger Caldera
Cleveland Kerinci Panarea Three Sisters
Colima Ketoi Papandayan Tinakula
Colo Kharimkotan Parker Tofua
Concepcion Kick 'em Jenny Pavlof Tokachidake
Copahue Kikai Peuet Sague Tolbachik
Cotopaxi Kilauea Pinatubo Toliman
Cuicocha Kirishimayama Planchon-Peteroa Tongariro
Cumbal Kizimen Poas Tungurahua
Dabbahu Klyuchevskoy Popocatepetl Turrialba
Dempo Kolokol Group Puyehue-Cordon Caulle Ubinas
Descabezado Grande Korovin Rabaul Ulawun
Dieng Volcanic Complex Koryaksky Raikoke Unknown Source
Dukono Krakatau Ranakah Unnamed
Ebeko Krummel-Garbuna-Welcker Raoul Island Unnamed
Ebulobo Kuchinoerabujima Rasshua Veniaminof
Egon Kurikomayama Raung Villarrica
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Erta Ale Lamongan Rinjani Wolf
Etna Langila Ritter Island Yasur
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Fernandina Lengai, Ol Doinyo Ruapehu Zhupanovsky
Fogo Leroboleng Ruiz, Nevado del Zubair Group
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Fournaise, Piton de la Lewotolo Sakar
Fourpeaked Little Sitkin 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.

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.)

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URL https://volcano.si.edu/reports_weekly.cfm
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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) - 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)