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Smithsonian / USGS Weekly Volcanic Activity Report

You are currently viewing Archived reports for the week of 25 June-1 July 2014.


















 Activity for the week of 25 June-1 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
Cleveland Chuginadak Island (USA) New
Kusatsu-Shiranesan Honshu (Japan) New
Nyamuragira DR Congo New
Sinabung Indonesia New
Stromboli Aeolian Islands (Italy) New
Zhupanovsky Eastern Kamchatka (Russia) New

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
San Miguel El Salvador Ongoing
Santa Maria Guatemala Ongoing
Sheveluch Central Kamchatka (Russia) Ongoing
Shishaldin Fox Islands (USA) Ongoing
Ubinas Peru Ongoing


New Activity / Unrest


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

AVO reported earlier in June that an explosion from Cleveland on the evening of 5 June was detected on the Dillingham acoutstic infrasound array and at seismic stations at Korovin volcano. The brief event was similar to previous explosions at Cleveland, and generated a small detached plume with a weak ash signal observed in satellite imagery. The cloud was at an altitude of about 7.6 km (25,000 ft) a.s.l., had moved about 140 km SW, and rapidly dissipated. The last previous explosion at was 6 March, seen by residents of Nikolski who reported small ash puffs.

Source: US Geological Survey Alaska Volcano Observatory (AVO)



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

JMA reported that deformation of Kusatsu-Shiranesan’s crater and the elevated temperatures which began earlier in March, continued during 25-30 June. This activity has been focused in the area immediately of N of Mizugama crater. Some seismicity was also reported, although tremor was absent. The Alert Level remains at 2 (on a scale of 1-5).

Source: Japan Meteorological Agency (JMA)



Volcano index photo  Nyamuragira  | DR Congo  | 1.408°S, 29.2°E  | Elevation 3058 m

On 29 June NASA reported that Nyamuragira vented steam and other volcanic gases and there was a glow from the lava lake. NOAA reported that an Ozone Monitoring Instrument (OMI) satellite detected high SO2 concentrations above Nyamuragira. The University of Hawaii reported that Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data detected thermal anomalies and issued six MODVOLC alerts for the volcano’s N side.

Sources: Hawai'i Institute of Geophysics and Planetology (HIGP) Thermal Alerts Team, NASA Earth Observatory, NOAA Satellite and Information Service



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

After more than a month of dome growth and lava flows, PVMBG reported that Sinabung erupted explosively again on 29 June. The eruption plume rose to 4 km (13,000 ft) a.s.l. and pyroclastic flows extended 4.5 km SE. Visual observations were impeded by inclement weather. About 14,000 persons remain evacuated since September 2013. The Alert Level remains at 3 (on a scale of 1-4).

Sources: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM), People's Daily Online (China)



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

INGV reported that during 29-30 June Stromboli erupted a small intracrater lava flow, a lava flow from the crater mouth on the N, and a lava flow on the Sciara del Fuoco on the S. The flows were accompanied by intense spattering and a high frequency of explosions on 29 June.

Source: Sezione di Catania - Osservatorio Etneo (INGV)



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

KVERT reported that during 20-26 June, moderate gas-and-steam activity was observed at Zhupanovsky. Satellite data showed ash plumes drifting 55 km NW from the volcano. During June 27-28 cloud cover prevented views from satellite. The Aviation Color Code is Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



Ongoing Activity


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

JMA reported that during 23-27 June six explosions from Showa Crater at Aira Caldera’s Sakurajima volcano ejected tephra as far as 1,300 m. During 27-30 June there were four explosions. A significant explosion on 29 June lasted for 17 minutes.The Tokyo VAAC reported that during 25 June-1 July plumes rose to altitudes of 1.2-3.9 km (4,000-13,000 ft) a.s.l. and drifted NW, SE, and E. 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 Bezymianny’s activity continued during25-29 June; shallow earthquakes were registered. Video data captured weak gas-and-steam plumes rising from the volcano. Satellite data showed the volcano was frequently obscured by clouds. 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 27-28 June ash plumes from Dukono rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted 45-75 km NE and E.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)



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

INSIVUMEH reported that on 25-29 June weak to moderate explosions generated ash plumes that rose 500-800 m above the crater and drifted 10-12 km W, NW, and SE. Incandescent material that was ejected 100-200 m above the crater landed on the flank and formed avalanches. A lava flow from the crater moving SW towards the Tanilaya drainage generated avalanches into the Ceniza drainage (SSW). On 26 June explosions generated moderate and strong acoustic waves that sounded like a quiet jet engine for a period of 1-2 minutes.

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 that Strombolian and weak Vulcanian activity continued at Karymsky during 20-26 June. Satellite images detected no activity or were obscured by clouds. 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 25 June-1 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.

During 25-26 June, lava flows from the N and NE spatter cones at Pu'u 'O'o Crater were active and persistent glow emanated from spatter cones on the N, SE, and S portions of the crater floor, and from a small lava lake in the NE spatter cone. On 27 June the crater floor slowly subsided and new lava erupted on the N flank. During 27-30 June lava flowed from four locations on the NE flank, advancing to about 1 km NE. Spatter cones collapsed varying amounts. A 28 June satellite image showed that the 27 June lava flows had expanded in area and extended no more than 1.6 km NE of Pu'u 'O'o cone. During 25-27 June there were multiple active breakouts in the interior of the Kahauale`a 2 flow at the north base of Pu'u 'O'o and distant broad smoke plumes, with multiple glowing points visible at night from both near and distant breakouts. Only one stationary glowing spot was seen during 28-30 June on a nearby breakout from the Kahauale`a 2 flow, and little to no smoke from the distal end of that flow, suggesting that the flow was cutoff and dead.

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 on most days during 25-29 June [fumarolic plumes] rose 50 m above Pacaya and drifted 400-500 m N and S.

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



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

MARN issued a special report on 27 June and related the unstable system at San Miguel as RSAM values decreased then climbed to fluctuate between 118 and 335. Concentrations of sulfur dioxide (SO2) values measured over the past 24 hours have fluctuated between good and unhealthy.

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 during 25-29 June Santa María's Santiaguito lava-dome complex generated ash plumes that rose 200-300 m and drifted 2-3 km SW. A few avalanches were reported moving down the SW flank toward the San Isidro river canyon and from the lava flow E toward the Nima I river. Ashfall was reported in Monte Claro (S).

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 20-27 June lava-dome extrusion onto Shiveluch’s SE flank was accompanied by ash explosions, incandescence, hot avalanches, and fumarolic activity. Satellite images detected a thermal anomaly over the dome on 22 and 25 June. 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 25 June – 1 July, low-level seismicity continued at Shishaldin volcano. Elevated surface temperatures at the summit were detected. A steam and gas plume was intermittently visible rising from the summit and drifting downwind, although satellite and web-camera images have been mostly cloudy. 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  Ubinas  | Peru  | 16.355°S, 70.903°W  | Elevation 5672 m

The Buenos Aires VAAC reported that during 25-28 June there was continuous steam and possible ash emission from Ubinas. In a press release from 30 June, IGP noted minimal releases of ash and gas emissions had been observed during the previous days. Gas-and-ash plumes observed on 30 June rose 1.8 km above the crater. Minor ashfall was reported SE.

Sources: Buenos Aires Volcanic Ash Advisory Center (VAAC), Instituto Geofísico del Perú (IGP)



Weekly Reports Archive

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Agung Fuego Llaima San Miguel
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Balbi Huila, Nevado del Monowai Soufriere Hills
Bamus Hunga Tonga-Hunga Ha'apai Montagu Island Soufriere St. Vincent
Banda Api Ibu Moyorodake [Medvezhia] South Sarigan Seamount
Bardarbunga Ijen Mutnovsky Spurr
Barren Island Iliamna Myojinsho St. Helens
Batur Iliwerung Nabro Stromboli
Bezymianny Inielika Negra, Sierra Sulu Range
Bogoslof Ioto Negro, Cerro Sumbing
Brava Iya Nightingale Island Sundoro
Bristol Island Izu-Torishima Nishinoshima Suretamatai
Bulusan Jackson Segment Nisyros Suwanosejima
Calbuco Kaba Novarupta Taal
Callaqui Kadovar NW Rota-1 Tair, Jebel at
Cameroon Kambalny Nyamuragira Takawangha
Campi Flegrei del Mar di Sicilia Kanaga Nyiragongo Talang
Cayambe Kanlaon Okataina Tambora
Cereme Karangetang Okmok Tanaga
Chachadake [Tiatia] Karkar Ontakesan Tandikat-Singgalang
Chaiten Karthala Oraefajokull Tangkoko-Duasudara
Chiginagak Karymsky Osorno Tangkubanparahu
Chikurachki Kasatochi Pacaya Tara, Batu
Chiles-Cerro Negro Katla Pagan Telica
Chillan, Nevados de Kavachi Palena Volcanic Group Tenerife
Chirinkotan Kelimutu Paluweh Tengger Caldera
Chirpoi Kelut Panarea Three Sisters
Cleveland Kerinci Papandayan Tinakula
Colima Ketoi Parker Tofua
Colo Kharimkotan Pavlof Tokachidake
Concepcion Kick 'em Jenny Peuet Sague Tolbachik
Copahue Kikai Pinatubo Toliman
Cotopaxi 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
Fourpeaked Little Sitkin San Cristobal
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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)