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Smithsonian / USGS Weekly Volcanic Activity Report

You are currently viewing Archived reports for the week of 30 July-5 August 2014.


















 Activity for the week of 30 July-5 August 2014

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
Kuchinoerabujima Ryukyu Islands (Japan) New
Kusatsu-Shiranesan Honshu (Japan) New
Tungurahua Ecuador New
Ubinas Peru New

Aira Kyushu (Japan) Ongoing
Fuego Guatemala Ongoing
Kilauea Hawaiian Islands (USA) Ongoing
Pacaya Guatemala Ongoing
Reventador Ecuador Ongoing
San Miguel El Salvador Ongoing
Santa Maria Guatemala Ongoing
Sheveluch Central Kamchatka (Russia) Ongoing
Shishaldin Fox Islands (USA) Ongoing
Zhupanovsky Eastern Kamchatka (Russia) Ongoing


New Activity / Unrest


Volcano index photo  Kuchinoerabujima  | Ryukyu Islands (Japan)  | 30.443°N, 130.217°E  | Elevation 657 m

On 3 August, JMA reported that Kuchinoerabujima erupted in the vicinity of Shin-dake crater and an overflight confirmed traces of ash on the west side of the volcano. Tokyo VAAC reported an ash plume rose to 1.5 km (5,000 ft) a.s.l. and drifted N. JMA raised the Alert Level for Kuchinoerabujima from 2 to 3 (on a scale of 1-5). On 5 August, volcanic seismicity and volcanic tremor decreased and views from a remote web camera showed a white plume 50 m above the crater rim.

Sources: Japan Meteorological Agency (JMA), Tokyo Volcanic Ash Advisory Center (VAAC)



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

On 5 August, JMA reported a notable increase of volcanic earthquakes at Kusatsu-Shiranesan’s crater, although tremor was absent. The Alert Level remains at 2 (on a scale of 1-5).

Source: Japan Meteorological Agency (JMA)



Volcano index photo  Tungurahua  | Ecuador  | 1.467°S, 78.442°W  | Elevation 5023 m

During 30 July-5 August IG reported that Tungurahua had moderate and increasing levels of seismicity. On 1-4 August ash plumes rose 1-4 km (3,300-13,100 ft) a.s.l. and drifted N, NW, W, SW, and E. Incandescent blocks ejected 700-1000m above the crater and traveled 500-700m down the flanks of Tungurahua from an explosion on 1 August, followed by 4 small to moderate explosions on 3 August and an explosion 4 August that rattled the observatory. IG reported incandescence within the crater on 2-4 August; observations were supplemented with a thermal camera when the summit was obscured by clouds. Washington VAAC reported ash emissions on 1-5 August that rose 6-8.5 km (20,000-28000 ft) a.s.l. Ashfall was reported in Choglontús, El Manzano, Motilones, Cusúa, Tisaleo, Mocha, Bilbao, Pillate, Chacauco, Pondoa, Sua, Cevallos, Motilones, Quero, Rumipamba, Yanayacu, Pinchicoto, and Tizaleo.

Sources: Instituto Geofísico-Escuela Politécnica Nacional (IG), Washington Volcanic Ash Advisory Center (VAAC)



Volcano index photo  Ubinas  | Peru  | 16.355°S, 70.903°W  | Elevation 5672 m

On 31 July and 3-5 August the Buenos Aires VAAC reported continuous emission of light ash from Ubinas. On 30 July INGEMMET reportedsteam-and-gas plumes that rose 500-1100 m above the summit. On 31 July INGEMMET reported an eruption column rose to 3 km (9,800 ft) a.s.l. and drifted NW. On 1 and 3 August gas-and-ash emission rose 200-1200 m above the crater and drifted W.

Sources: Buenos Aires Volcanic Ash Advisory Center (VAAC), Instituto Geológico Minero y Metalúrgico (INGEMMET)



Ongoing Activity


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

JMA reported an explosion from Showa Crater at Aira Caldera’s Sakurajima volcano on 30 July that ejected ballistics 300-500 m from Showa crater and six other explosions on 31 July accompanied by volcanic earthquakes and volcanic tremor. In general, explosions, volcanic tremor and volcanic earthquakes decreased 1-4 August. On 31 July-4 August, incandescence was clearly visible by high-sensitivity camera at night. The Tokyo VAAC reported that a plume from the 30 July explosion rose to an altitude of 1.2 km (4,000 ft) a.s.l. and drifted NW. The Alert Level remained at 3 (on a scale of 1-5).

Sources: Japan Meteorological Agency (JMA), Tokyo Volcanic Ash Advisory Center (VAAC)



Volcano index photo  Fuego  | Guatemala  | 14.473°N, 90.88°W  | Elevation 3763 m

During 30 July-5 August, INSIVUMEH reported weak to moderate explosions at Fuego with incandescent blocks expelled 100-200 m above the crater accompanied by minor gray ash 300-400 m above the crater that drifted S. Shock waves from those explosions produced rumbling that rattled structures up to 4 km from the volcano. On most days, weak to moderate avalanches of blocks moved down the flanks towards Taniluya, Ceniza and Santa Teresa canyons. Gray to white plumes rose 4.2-4.6 km (13,800-15,100 ft) a.s.l. and drifted 9-12 km W and SW. Ashfall was reported in villages of Yepocapa, Finca La Conchita, Sangre de Cristo, Morelia and Panimaché.

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



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

During 30 July-5 August HVO reported that the circulating lava lake occasionally rose and fell in the deep pit within Kilauea’s Halema’uma’u Crater. Gas emissions remained elevated. The plume from the vent continued to deposit variable amounts of ash, spatter, and Pele’s hair onto nearby areas; smaller particles may have been deposited several kilometers away.

On 30 June the mapped June 27th flow front had reached 4.2 km from vent on northeast flank of Pu’u ‘O’o’. The flow front has continued to advance reaching about 5 km NE of Pu’u ‘O’o’ on 4 August. Two small lava ponds remained active on the south side of Pu’u ‘O’o’s crater. On 30 July-2 August small lava flows were fed by the eastern lava pond.

Source: US Geological Survey Hawaiian Volcano Observatory (HVO)



Volcano index photo  Pacaya  | Guatemala  | 14.382°N, 90.601°W  | Elevation 2569 m

INSIVUMEH reported that during 30 July-5 August, white to light blue fumarolic plumes rose 50 m above Mackenney Crater at Pacaya and drifted up to 600 m W, SW, and S.

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



Volcano index photo  Reventador  | Ecuador  | 0.077°S, 77.656°W  | Elevation 3562 m

IG reported moderate volcanic activity including explosions, long period earthquakes, harmonic tremor, and tremor at Reventador during 30 July-5 August. On most days IG reported inclement weather with intermittent views of steam-and-ash plumes that rose above the crater and drifted W. On 2 August IG noted a steam-and-ash plume rose 2 km above the crater accompanied by seven emission tremor events. On 31 July Washington VAAC reported on-going ash emissions and detected hotspots at the crater.

Sources: Instituto Geofísico-Escuela Politécnica Nacional (IG), Washington Volcanic Ash Advisory Center (VAAC)



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

SNET reported decreasing seismic activity and reduced emissions at San Miguel during 30 July-5 August. A remote camera and infrared visual display showed minor white fumarolic emissions that rose less than 200 m above the crater.

Source: Servicio Nacional de Estudios Territoriales (SNET)



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

On 30 July-5 August INSIVUMEH reported weak fumerolic columns rose to 2.7-2.8 km (8,800-9,100 ft) a.s.l. above Santiaguito. On most days, weak avalanches flowed from the lava flow (2.1 km in length) towards Canyon Nima River I. On 4 August INSIVUMEH reported incandescence at the crater.

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



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

KVERT reported that during 25 July-1 August lava-dome extrusion onto Shiveluch’s SE flank was accompanied by moderate ash explosions, incandescence of the dome summit, hot avalanches, and fumarolic activity. Satellite images were obscured by clouds over the past week. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



Volcano index photo  Shishaldin  | Fox Islands (USA)  | 54.756°N, 163.97°W  | Elevation 2857 m

AVO reported that during 30 July-5 August low-level eruptive activity continued at Shishaldin volcano. Elevated surface temperatures at the summit were detected from satellite data most days except for cloudy conditions 4-5 August. Steaming from the summit crater was visible in web cam images 30 July-1 August and 5 August. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch.

Source: US Geological Survey Alaska Volcano Observatory (AVO)



Volcano index photo  Zhupanovsky  | Eastern Kamchatka (Russia)  | 53.589°N, 159.15°E  | Elevation 2899 m

KVERT reported that during 25 July-1 August the moderate explosive eruption continues at Zhupanovsky. On 27 July, satellite data showed ash plumes rose to 4 km (13,100 ft) a.s.l. and extended 150 km N. The volcano was obscured by clouds 25 July-1 August. On 30 July Tokyo VAAC reported an ash plume rose 5.2 km (17,000 ft) a.s.l. and drifted W.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)



Weekly Reports Archive

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Agung Fuego Little Sitkin San Cristobal
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Bardarbunga Ijen Moyorodake [Medvezhia] South Sarigan Seamount
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Batur Iliwerung Myojinsho St. Helens
Bezymianny Inielika Nabro Stromboli
Bogoslof Ioto Negra, Sierra Sulu Range
Brava Iya Negro, Cerro Sumbing
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Bulusan Jackson Segment Nishinoshima Suretamatai
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 Tangkuban Parahu
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
Ekarma Kusatsu-Shiranesan Redoubt West Mata
Epi Kverkfjoll Reventador White Island
Erebus Lamington Rincon de la Vieja Witori
Erta Ale Lamongan Rinjani Wolf
Etna Langila Ritter Island Yasur
Etorofu-Yakeyama [Grozny Group] Lanin Rotorua Zaozan
Eyjafjallajokull Lascar Ruang Zavodovski
Fernandina Lateiki Ruapehu Zhupanovsky
Fogo Lengai, Ol Doinyo Ruiz, Nevado del Zubair Group
Fonualei Leroboleng Sabancaya
Fournaise, Piton de la Lewotobi Sakar
Fourpeaked Lewotolo 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.

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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)