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Smithsonian / USGS Weekly Volcanic Activity Report

You are currently viewing Archived reports for the week of 1 June-7 June 2016.


















 Activity for the week of 1 June-7 June 2016

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
Bristol Island South Sandwich Islands (UK) New
Kerinci Indonesia New
Santa Maria Guatemala New
Suretamatai Banks Islands (Vanuatu) New
Turrialba Costa Rica New

Aira Kyushu (Japan) Ongoing
Alaid Kuril Islands (Russia) Ongoing
Ambrym Vanuatu Ongoing
Bagana Bougainville (Papua New Guinea) Ongoing
Cleveland Chuginadak Island (USA) Ongoing
Colima Mexico Ongoing
Dukono Halmahera (Indonesia) Ongoing
Kilauea Hawaiian Islands (USA) Ongoing
Klyuchevskoy Central Kamchatka (Russia) Ongoing
Popocatepetl Mexico Ongoing
San Miguel El Salvador Ongoing
Sheveluch Central Kamchatka (Russia) Ongoing
Sinabung Indonesia Ongoing
Tengger Caldera Eastern Java (Indonesia) Ongoing
Yasur Vanuatu Ongoing


New Activity / Unrest


Volcano index photo  Bristol Island  | South Sandwich Islands (UK)  | 59.017°S, 26.533°W  | Elevation 1100 m

The Buenos Aires VAAC reported that weather clouds mostly prevented satellite observations of Bristol Island's Mt. Sourabaya during 1-6 June, though a thermal anomaly was detected during 1-2 and 5-6 June.

Source: Buenos Aires Volcanic Ash Advisory Center (VAAC)



Volcano index photo  Kerinci  | Indonesia  | 1.697°S, 101.264°E  | Elevation 3800 m

Based on satellite data and information from PVMBG, the Darwin VAAC reported that during 4-6 June ash plumes from Kerinci rose to altitudes of 4.3-4.6 km (14,000-15,000 ft) a.s.l. and drifted NW and N.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



Volcano index photo  Santa Maria  | Guatemala  | 14.757°N, 91.552°W  | Elevation 3745 m

In a special report posted on 1 June, INSIVUMEH reported that activity at Santa María's Santiaguito lava-dome complex remained high. Two strong explosions generated ash plumes that rose as high as 2.4 km above the complex and drifted 30-40 km NE, SE, and SW. During 3-4 June gas-and-ash plumes rose 300 m.

Source: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH)



Volcano index photo  Suretamatai  | Banks Islands (Vanuatu)  | 13.8°S, 167.47°E  | Elevation 921 m

On 27 May the Vanuatu Geohazards Observatory stated that the Alert Level for Suretamatai was increased to 1 (on a scale of 0-4) because of a change in activity. VGO reminded residents and tourists that areas around the volcano and along the Sulfur River (E flank) were high-risk zones due to potential impacts from volcanic gas emissions.

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



Volcano index photo  Turrialba  | Costa Rica  | 10.025°N, 83.767°W  | Elevation 3340 m

OVSICORI-UNA reported that activity at Turrialba had declined overall since 27 May, though seismicity continued to be dominated by long-period earthquakes and small low-frequency volcanic earthquakes. A small explosion at 0516 on 1 June generated an ash plume that rose 300 m above the vent and, based on wind dispersion models, likely drifted NW. Some residents of Valle Central reported ashfall. Continuous spasmodic tremor that began at 2240 was associated with ash emissions that rose as high as 1 km and drifted N. At 0037 on 2 June an explosion was followed by high-amplitude spasmodic tremor and a dense ash-rich plume that rose 1 km and drifted NNW. Ash emissions continued; at 0520 and 0600 ash plumes rose as high as 2 km and drifted NW, N, and NE. Tremor amplitude decreased at 1240. Afternoon clouds prevented observations of ash emissions. Ashfall was reported in several neighborhoods in San José, including San Rafael de Moravia (31 km WSW), Sabana (38 km WSW), and in Limón, including Buenos Aires (17 km N), and Pococí (45 km N). During 2-3 June ash emissions were sometimes observed rising as high as 1 km and drifted N and NE. Ashfall in areas of Limón continued to be reported. Tremor amplitude began to decline at 0621 on 3 June, and then further declined to low levels at 0330 on 4 June. At dawn on 4 June plumes of water vapor and gas rose 500 m. Degassing and seismicity remained low through 7 June.

Source: Observatorio Vulcanologico y Sismologico de Costa Rica-Universidad Nacional (OVSICORI-UNA)



Ongoing Activity


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

JMA reported that on 3 June explosions at Showa Crater (at Aira Caldera’s Sakurajima volcano) generated an ash plume that rose 1.3 km above the crater rim, and a small pyroclastic flow that traveled 400 m SE. Tephra was ejected 800 m from the crater. A small-scale explosion occurred at Minamidake summit crater that same day; an ash plume rose 1.5 km above the crater rim. The Alert Level remained at 3 (on a 5-level scale).

Source: Japan Meteorological Agency (JMA)



Volcano index photo  Alaid  | Kuril Islands (Russia)  | 50.861°N, 155.565°E  | Elevation 2285 m

KVERT reported that moderate activity at Alaid continued during 27 May-3 June. Satellite images showed a thermal anomaly over the volcano on 29 May. 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  Ambrym  | Vanuatu  | 16.25°S, 168.12°E  | Elevation 1334 m

On 27 May the Vanuatu Geohazards Observatory issued a statement reminding residents and visitors that Ambrym remained active; the Alert Level remained at 2 (on a scale of 0-5). Areas deemed hazardous were near and around the active vents (Benbow, Maben-Mbwelesu, Niri-Mbwelesu and Mbwelesu), and in downwind areas prone to ashfall.

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



Volcano index photo  Bagana  | Bougainville (Papua New Guinea)  | 6.137°S, 155.196°E  | Elevation 1855 m

Based on analyses of satellite imagery and model data, the Darwin VAAC reported that on 2 June ash plumes from Bagana rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted 75 km in multiple directions.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



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

AVO reported that seismic activity at Cleveland had remained low since explosions were detected in infrasound (pressure sensor) and seismic data on 5 and 10 May. No significant activity had been observed since satellite data confirmed the eruption of a small-volume lava dome within the summit crater on 18 May; weakly elevated surface temperatures detected during 2-3 June were consistent with cooling lava. On 3 June AVO lowered the Level of Concern Color Code to Yellow and the Volcano Alert Level was lowered to Advisory.

Source: US Geological Survey Alaska Volcano Observatory (AVO)



Volcano index photo  Colima  | Mexico  | 19.514°N, 103.62°W  | Elevation 3850 m

Based on satellite images and wind data, the Washington VAAC reported that on 3 June an ash plume from Colima rose to an altitude of 5.2 km (17,000 ft) a.s.l. and drifted SW.

Source: Washington Volcanic Ash Advisory Center (VAAC)



Volcano index photo  Dukono  | Halmahera (Indonesia)  | 1.693°N, 127.894°E  | Elevation 1229 m

Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that during 1 and 3-7 June ash plumes from Dukono rose to altitudes of 2.1-2.4 km (7,000-8,000 ft) a.s.l. and drifted over 55 km in multiple directions.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



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

HVO reported that during 1-7 June the lava lake continued to rise and fall, circulate, and spatter in Kilauea's Overlook vent. Two new flows from Pu'u 'O'o Crater's N and E flanks, which began on 24 May, continued to be active within 1.3 km of their respective vents. The June 27th NE-trending lava flow continued to be active within 5.4 km NE of Pu'u 'O'o Crater.

Source: US Geological Survey Hawaiian Volcano Observatory (HVO)



Volcano index photo  Klyuchevskoy  | Central Kamchatka (Russia)  | 56.056°N, 160.642°E  | Elevation 4754 m

KVERT reported that a Strombolian eruption at Klyuchevskoy continued during 27 May-3 June. Satellite and video data showed a lava flow effusing on the SE flank, down the Apakhonchich drainage. Satellite images showed an intense daily thermal anomaly over the volcano. The Aviation Color Code was raised to Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



Volcano index photo  Popocatepetl  | Mexico  | 19.023°N, 98.622°W  | Elevation 5393 m

During 1-7 June there were 94-251 daily emissions from Popocatépetl and as many as four explosions detected daily; some emissions corresponded with increased crater incandescence at night. A series of explosions detected during 1135-2230 on 4 June generated gas-and-steam emissions with minor amounts of ash that rose 1.5 km above the crater and drifted ENE. Some of the explosions ejected incandescent tephra 300 m onto the NE flanks. An explosion on 5 June generated an ash plume that rose 1.5 km and drifted E. Incandescent tephra was ejected 1 km onto the N flank. Between 0354 and 0824 on 6 June continuous explosions formed plumes that rose 1 km and drifted NE. The Alert Level remained at Yellow, Phase Two.

Source: Centro Nacional de Prevencion de Desastres (CENAPRED)



Volcano index photo  San Miguel  | El Salvador  | 13.434°N, 88.269°W  | Elevation 2130 m

SNET reported that between 1304 and 1430 on 31 May seismic signals at San Miguel increased, and indicated rock fracturing at depth and possible gas-and-ash emissions. Though weather clouds partially covered the volcano, the webcam recorded some pulses of gas emissions. Seismicity decreased the next day.

Source: Servicio Nacional de Estudios Territoriales (SNET)



Volcano index photo  Sheveluch  | Central Kamchatka (Russia)  | 56.653°N, 161.36°E  | Elevation 3283 m

KVERT reported that during 27 May-3 June lava-dome extrusion onto Sheveluch’s N flank was accompanied by strong fumarolic activity, dome incandescence, ash explosions, and hot avalanches. Satellite images showed an intense thermal anomaly over the dome during 26-29 May. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



Volcano index photo  Sinabung  | Indonesia  | 3.17°N, 98.392°E  | Elevation 2460 m

Based on satellite images and information from PVMBG, the Darwin VAAC reported that during 5-7 June ash plumes from Sinabung rose to altitudes of 3.3-3.9 km (11000-13,000 ft) a.s.l. and drifted SW.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



Volcano index photo  Tengger Caldera  | Eastern Java (Indonesia)  | 7.942°S, 112.95°E  | Elevation 2329 m

Based on satellite images, wind data, and information from PVMBG, the Darwin VAAC reported that during 1-3 June ash plumes from Tengger Caldera's Bromo cone rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted as far as 65 km N and NW.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



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

On 27 May the Vanuatu Geohazards Observatory stated that the Alert Level for Yasur remained at 2 (on a scale of 0-4) and that explosions continued to be intense. VGO reminded residents and tourists that hazardous areas were near and around the volcanic crater, and that volcanic ash and gas could reach areas impacted by trade winds.

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



Weekly Reports Archive

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





 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)