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Smithsonian / USGS Weekly Volcanic Activity Report

You are currently viewing Archived reports for the week of 16 July-22 July 2014.


















 Activity for the week of 16 July-22 July 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
Aira Kyushu (Japan) Ongoing
Bezymianny Central Kamchatka (Russia) Ongoing
Dukono Halmahera (Indonesia) Ongoing
Fuego Guatemala Ongoing
Karymsky Eastern Kamchatka (Russia) Ongoing
Kilauea Hawaiian Islands (USA) Ongoing
Pacaya Guatemala Ongoing
Popocatepetl Mexico Ongoing
Reventador Ecuador Ongoing
San Miguel El Salvador Ongoing
Santa Maria Guatemala Ongoing
Sheveluch Central Kamchatka (Russia) Ongoing
Shishaldin Fox Islands (USA) Ongoing
Slamet Central Java (Indonesia) Ongoing
Tungurahua Ecuador Ongoing
Ubinas Peru Ongoing
Zhupanovsky Eastern Kamchatka (Russia) Ongoing


Ongoing Activity


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

JMA reported that seven explosive eruptions from Showa Crater at Aira Caldera’s Sakurajima volcano during 14-22 July ejected ballistics 500-800 m from Showa crater. In general, volcanic earthquakes decreased and tremor increased. The Tokyo VAAC reported that during 16-20 July plumes rose to an altitude of 2-3 km (7,000-10,000 ft) a.s.l. and drifted E and SE; on 22 July a plume rose to an altitude of 1.8 km (6,000 ft) a.s.l. and drifted N. 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  Bezymianny  | Central Kamchatka (Russia)  | 55.972°N, 160.595°E  | Elevation 2882 m

KVERT reported that during 11-18 July, weak seismicity and weak to moderate gas-and-steam emissions were observed at Bezymianny. On 17 July satellite data showed a thermal anomaly over the volcano, but the view was obscured by clouds other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



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 on 17 July a low level plume from Dukono rose to an altitude of 1.8 km (6,000 ft) a.s.l. and drifted 55 km NE.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



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

During 16-22 July, INSIVUMEH reported moderate to strong explosions at Fuego with incandescent blocks being expelled 200-500 m above the crater. On July 22 the explosions also ejected gray ash. Most days weak avalanches moved down the flanks. Light gray eruption columns reported on 16 July rose 4-4.5 km (13,100-14,800 ft) a.s.l. and drifted 7-10 km W, SW, WSW, E, and NE. Weak white fumarolic plume rose 200-300 m above Fuego’s summit crater. A special bulletin on 18 July noted an increased number of explosions and a change in the eruptive pattern. Rumbling and jetting sounds often accompanied moderate to strong explosions that produced shock waves 12-15 km away and rattled structures in Panimache and Morelia on the flanks.

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



Volcano index photo  Karymsky  | Eastern Kamchatka (Russia)  | 54.049°N, 159.443°E  | Elevation 1513 m

KVERT reported weak to moderate seismic activity indicating that Strombolian activity continued at Karymsky during 11-18 July. Satellite views were obscured by clouds or the imagery showed no activity. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



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

During 16-22 July 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 dropped several kilometers away. A 27 June breakout of lava flowed in an incipient lava tube from the vent to the gentle break in slope at the base of Pu`u `O`o, and continued slowly moving in two main lobes that extended about 2 km NE. Two small lava ponds within cones are present within the two southeastern pits in the crater floor, and glow above two other pits indicated lava is near the surface.

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 16-22 July, white to white-and-blue fumarolic plumes rose 50-75 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  Popocatepetl  | Mexico  | 19.023°N, 98.622°W  | Elevation 5393 m

CENAPRED reported that during 16-22 July, steam and gas emission rose 200-700 m above Popocatépetl’s crater and drifted NE, N, NW, W, and WSW. Slight nighttime incandescence was observed. The Alert Level remained at to Yellow, Phase Two.

Source: Centro Nacional de Prevencion de Desastres (CENAPRED)



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

IG reported moderate seismicity including explosions, long-period earthquakes, harmonic tremor, and tremor, though cloud cover mostly prevented observations of Reventador during 16-21 July. On 18 July IG noted an emission that rose to 800 m above the crater, and on 22 July a minor ash emission also rose 800 m above the crater; both drifted SW.

Source: Instituto Geofísico-Escuela Politécnica Nacional (IG)



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

SNET reported elevated seismic activity at San Miguel on 17, 19, 20, and 22 July. RSAM had increased significantly. SO2 flux measurements indicated variability in air quality, which at times reached unhealthy levels.

Source: Servicio Nacional de Estudios Territoriales (SNET)



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

INSIVUMEH reported that on most days during 15-22 July the active lava dome of Santiaguito was visibly degassing and generating plumes. Ash was noted on16 and 20 July rising up to 3.2 km (10,500 ft) a.s.l. and tendeding to drift SW. On most days, fumarolic colums reached 2.8-3.2 km (9,200-10,500 ft) a.s.l. and weak to moderate avalanches flowed towards Canyon Nima River I. A moderate explosion occurred 16 July, and ashfall was reported in the Finca El Rosario Palajunoj.

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 11-18 July 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 data showed a thermal anomaly over the volcano on 16-17 July. An eruption was reported to 8.2 km (27,000 ft) a.s.l. on 18 July. The Aviation Color Code remained at Orange.

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



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

AVO reported that during 16-22 July low-level eruptive activity continued at Shishaldin volcano. Elevated surface temperatures at the summit were detected from satellite data daily, slightly increasing 18 July. Steaming from the summit crater was visible in satellite imagery on 16 July. Web-camera images were mostly obscured due to clouds. 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  Slamet  | Central Java (Indonesia)  | 7.242°S, 109.208°E  | Elevation 3428 m

Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that on 18 July a low level plume from Slamet rose to an altitude of 4.6 km (15,000 ft) a.s.l. and drifted 83 km W and N.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



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

During 16-21 July IG reported that Tungurahua had low levels of seismicity and cloudy conditions. On 22 July the IG reported clear weather and observed a steam column that rose tens of meters above the crater.

Source: Instituto Geofísico-Escuela Politécnica Nacional (IG)



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

During 16-22 July INGEMMET and IGP reported that the eruption of Ubinas was continuing with gas-and-ash emissions reported most days. An explosion on 17 July, preceded by several days of banded tremor, generated an eruption column that rose 5 km above the summit and expelled incandescent blocks onto the flanks. More explosions on 19 and 21 produced eruption columns of gas-and-ash; the column on 19 July rose 2.8 km above the summit. Emissions and exhalations on 16, 18, and 22 July of gas-and-ash rose to 200-1800 m above the summit. Eruption columns and emissions drifted mostly E, NE, and SE. There were no significant emissions on 20 July. Ashfall was reported in various towns downwind of the plumes, in the areas of Querapi (4 km S), Ubinas (6.5 km SSE), Tonohaya (7 km SSE), San Miguel (10 km SE), Escacha, Yalahua, Lloque, and Sacuhaya.

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



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

KVERT reported that on 15 July moderate gas-and-steam activity was observed at Zhupanovsky. On 16-17 July satellite data showed ash plumes that rose to 6-6.5 km (19,700-21,300 ft) a.s.l. and extended about 370 km N. A thermal anomaly was observed over the volcano on 16 July. The Tokyo VAAC reported ash plumes during 16-18 and 21 July drifting N and NE. Plume altitudes were in the range of 3.3-8.5 km (11,000-28,000 ft) a.s.l.

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



Weekly Reports Archive

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Agung Fourpeaked Little Sitkin San Cristobal
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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
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Egon Kuchinoerabujima Redoubt West Mata
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Eyjafjallajokull Lascar Ruapehu Zhupanovsky
Fernandina Lengai, Ol Doinyo Ruiz, Nevado del Zubair Group
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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)