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Smithsonian / USGS Weekly Volcanic Activity Report

Weekly Volcanic Activity Map

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 that meet criteria discussed in detail in the "Criteria and Disclaimers" section. Carefully reviewed, detailed narratives on various volcanoes are published as reports of the Bulletin of the Global Volcanism Network.

Smithsonian / USGS Weekly Volcanic Activity Report for the week of 6 February-12 February 2013
Name Location Eruption Start Date Report Status
Ambae Vanuatu New
Cleveland Chuginadak Island (USA) New
Etna Sicily (Italy) 2013 Sep 3 New
Rabaul New Britain (Papua New Guinea) New
Rasshua Kuril Islands (Russia) New
Reventador Ecuador 2008 Jul 27 New
Soufriere Hills Montserrat New
Stromboli Aeolian Islands (Italy) 1934 Feb 2 New
Whakaari/White Island North Island (New Zealand) New
Aira Kyushu (Japan) 2017 Mar 25 Continuing
Bagana Bougainville (Papua New Guinea) 2000 Feb 28 (in or before) Continuing
Batu Tara Komba Island (Indonesia) Continuing
Bezymianny Central Kamchatka (Russia) 2010 May 21 (?) Continuing
Chirpoi Kuril Islands (Russia) Continuing
Karymsky Eastern Kamchatka (Russia) Continuing
Kilauea Hawaiian Islands (USA) Continuing
Kizimen Eastern Kamchatka (Russia) Continuing
Manam Papua New Guinea 2014 Jun 29 Continuing
Paluweh Indonesia Continuing
Santa Maria Guatemala 1922 Jun 22 Continuing
Sheveluch Central Kamchatka (Russia) 1999 Aug 15 Continuing
Tolbachik Central Kamchatka (Russia) Continuing
Weekly Reports Archive

Since the Weekly Volcanic Activity Report began in November 2000, there have been 16,280 individual reports over 1,045 weeks (average of 16 per week) on 308 different volcanoes.

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


Download Smithsonian / USGS Weekly Volcanic Activity Report Network RSS Feed

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. At the end of each report is a list of the sources used. 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. This feature was first made available on 5 March 2008.



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Download Smithsonian/USGS Weekly Volcanic Activity Report Network Link Download Smithsonian / USGS Weekly Volcanic Activity Report Network Link

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 profile page and to the complete Weekly Report for that week. This feature was first made available on 1 April 2009.

 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.)

U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA
URL: https://volcano.si.edu/reports_weekly.cfm

 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)

Report for Ambae
According to the Vanuatu Geohazards Observatory, Ambanga villagers reported that minor activity at Aoba began in December 2012. The OMI instrument detected strong gas emissions on 18 and 25 January; the emissions continued at a lower level through 7 February. Field observations by the Geohazards team during 30 January-2 February confirmed that activity had significantly changed. Data retrieved from a monitoring station also confirmed ongoing activity. The Vanuatu Volcano Alert Level (VVAL) remained at 1 (on a scale of 0-4).
Source: Vanuatu Meteorology and Geo-Hazards Department (VMGD)
Report for Cleveland
On 6 February AVO reported that satellite imagery acquired on 30 January indicated that a lava dome had grown in Cleveland's summit crater, prompting AVO to raise the Volcanic Alert Level to Watch and the Aviation Color Code to Orange. The dome was about 100 m in diameter and may have begun forming as early as 24 January when elevated surface temperatures were observed in satellite images. The size and shape of the dome appeared to be unchanged based on satellite data acquired on 2 February. Elevated surface temperatures from the lava dome were detected during 5-6 and 8-11 February.
Source: US Geological Survey Alaska Volcano Observatory (AVO)
Report for Etna
Sezione di Catania - Osservatorio Etneo reported that during the days following the 2 February eruptive episode at Etna intermittent emissions of small quantities of ash were repeatedly observed from both the New Southeast Crater (NSEC) and Bocca Nuova Crater.

Volcanologists visited Etna on 5 February and observed the recent changes that had taken place at Bocca Nuova Crater, notably the growth of a pyroclastic cone surrounding the eruptive vent in the SE portion of the crater. This cone had grown at least 50-70 m, about halfway up the inner crater wall, and was leaning into the wall. The entire crater floor was covered with recent lava.

Later in the evening of 5 February a webcam recorded weak Strombolian activity at NSEC, which continued until daybreak the next day, and then became invisible due to deteriorating weather conditions. Seismic data showed an instantaneous increase of tremor at 1020; volcanic tremor amplitude rose to a peak within a few minutes after the start of the activity, and began to descend after less than one hour. People in the ski area on the NE flank of the volcano briefly saw a dense but ash-free gas plume rising from the summit.

After the episode on 6 February through most of 8 February sporadic ash emissions from NSEC were observed, although poor weather conditions often prevented observations. On the evening of 8 February weak glow from NSEC was intermittently visible. At 2100 a webcam recorded fluctuating glow from within Bocca Nuova which became more intense over the next 10 minutes. Around 2125 jets of incandescent lava were repeatedly seen rising above a thick blanket of clouds drifting over the summit area of Etna. Contemporaneously, the volcanic tremor amplitude rose sharply. After 2200 the volcanic tremor amplitude began to decrease, whereas the eruptive activity continued without showing signs of diminishing until about 30 minutes later. After 2230 on 8 February and during 9-10 cloud cover prevented observations. A brief ash emission was observed on 10 February.
Source: Sezione di Catania - Osservatorio Etneo (INGV)
Report for Rabaul
RVO reported that during 4-5 February pale gray ash plumes rose from Rabaul caldera's Tavurvur cone. On 5 February the ash plumes slowly rose 2 km a.s.l. and drifted E and ENE. On 6 February only white plumes rose from the crater during most of the day. In the evening a gray billowing ash cloud was followed by a sequence of "gentle puffs" of white to light gray ash emissions at irregular intervals into the night and through the morning of 7 February. Fine ashfall was reported in Rabaul town (3-5 km NW) in the late evening of 6 February.
Source: Rabaul Volcano Observatory (RVO)
Report for Rasshua
SVERT reported that a thermal anomaly over Rasshua was detected in satellite images on 6 February.
Source: Sakhalin Volcanic Eruption Response Team (SVERT)
Report for Reventador
IG reported that seismicity at Reventador was high during 6-7 February and moderate during 8-12 February; explosions were detected daily. An ash plume rose 3 km and drifted S on 7 February, and ashfall was reported in areas near the volcano on 9 February. Cloud cover often prevented observations.
Source: Instituto Geofísico-Escuela Politécnica Nacional (IG)
Report for Soufriere Hills
MVO reported that during 1-8 February activity at the Soufrière Hills lava dome was at a low level, although there was a slight increase during 3-6 February characterized by volcano-tectonic earthquakes, elevated gas flux, and possible light ash venting. The volcano-tectonic earthquakes occurred in four brief swarms: at 2220 on 3 February, at 0915 and 0950 on 4 February, and at 0620 on 5 February. The second swarm was the most intense, and was followed by a hybrid seismic event. Another hybrid event was not associated with a swarm.

After the second, and largest, volcano-tectonic swarm on 4 February, there were increases in the temperatures of several fumaroles inside the 11 February 2010 collapse scar, as observed using a handheld thermal infra-red camera at MVO, 5.7 km away. There was a further increase, as well as some loud roaring sounds, around the time of the third swarm. The activity likely included minor ash venting from a large fumarole in the floor of the collapse scar because fresh ash deposits were observed adjacent to this fumarole on the morning of 5 February. All fumaroles had returned to background levels of activity and temperature by later that day.

Sulfur dioxide measurements showed an average flux of 929 tonnes/day during the week, with a maximum of 2,381 tonnes/day and a minimum of 273. The flux was not steady, with peaks of 962, 1,266 and 2,381 on 1, 4 and 6 February, respectively. The last measurement is the highest daily value since the ash-venting episode that occurred during 23-25 March 2012. The Hazard Level remained at 2 (on a scale of 1-5).
Source: Montserrat Volcano Observatory (MVO)
Report for Stromboli
On 9 February Sezione di Catania - Osservatorio Etneo reported that after about three weeks of normal explosive activity, new, small lava overflows again occurred on Stromboli's crater terrace. The first overflow started in the morning of 8 February, producing a small lava flow that descended the upper NW slope of the Sciara del Fuoco, and ceased during the afternoon. The second overflow began shortly after midnight on 9 February and produced a lava flow that traveled N. Bad weather prevented surveillance video transmission after 0125; when the transmission resumed at 1000, the feeding of the lava flow had diminished, and the active flow front was retreating upslope, generating frequent rockfalls. In the late afternoon of 9 February lava effusion ceased altogether, but resumed once more during the early morning hours of 10 February, generating a small flow that slowly advanced downslope for a few tens of meters. The lava front continuously produced incandescent rockfalls. During the day, lava emission progressively diminished, and ceased completely in the late afternoon.
Source: Sezione di Catania - Osservatorio Etneo (INGV)
Report for Whakaari/White Island
On 11 February GeoNet Data Centre reported that analysis of recent changes and measurements from White Island indicated that activity was lower than the previous week; therefore, the Aviation Colour Code was lowered to Yellow and the Volcanic Alert Level remained at 1 (on a scale of 0-5). The report also stated that early during the previous week the level of volcanic tremor recorded at White Island dropped to less than half that of the week before. At the same time small explosive eruptions in the active crater, which had been occurring for about three weeks, became less intense. On 7 February sulfur dioxide and carbon dioxide gas measurements were similar to measurements from January: sulfur dioxide flux was 560 tonnes/day and carbon dioxide flux was 1,800 tonnes/day. A volcanologist that visited the lake area on 8 February noted that water had again filled the lake and small geysering was the only activity that he observed. The lake water was hot, about 80 degrees Celsius.
Source: GeoNet
Report for Aira
Based on information from JMA, explosions from Sakura-jima's Showa Crater during 6-12 February generated plumes that rose to altitudes of 1.2-3.7 km (4,000-12,000 ft) a.s.l. and drifted SW, S, SE, E, and NE. The Tokyo VAAC reported that pilots observed ash plumes at altitudes of 2.4-3.4 km (8,000-11,000 ft) a.s.l. on 8 and 11 February.

JMA reported that during 8-12 February 34 explosions from Showa Crater were detected and ejected tephra fell at most 1.8 km from the crater. Crater incandescence was clearly detected at night.
Sources: Tokyo Volcanic Ash Advisory Center (VAAC), Japan Meteorological Agency (JMA)
Report for Bagana
Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that during 8-12 February ash plumes from Bagana rose to altitudes of 1.5-3 km (5,000-10,000 ft) a.s.l. and drifted 35-130 km E and NW.
Source: Darwin Volcanic Ash Advisory Centre (VAAC)
Report for Batu Tara
Based on analyses of satellite imagery and wind data, the Darwin Volcanic Ash Advisory Centre (VAAC) reported that during 6 and 8-12 February ash plumes from Batu Tara rose to altitudes of 2.1-3.7 km (7,000-12,000 ft) a.s.l. and drifted 35-75 km W, NW, and N.
Source: Darwin Volcanic Ash Advisory Centre (VAAC)
Report for Bezymianny
KVERT reported that during 1-8 February seismic activity at Bezymianny was obscured by strong seismicity at Tolbachik. A viscous lava flow continued to effuse on the lava-dome flank, accompanied by gas-and-steam emissions. A thermal anomaly was detected in satellite imagery on 31 January and 1 February; cloud cover prevented views on the other days.
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Report for Chirpoi
SVERT reported that a thermal anomaly and steam-and-gas emissions from Snow, a volcano of Chirpoi, were detected in satellite images on 7 and 10 February; cloud cover prevented observations of the volcano on other days during 4-11 February.
Source: Sakhalin Volcanic Eruption Response Team (SVERT)
Report for Karymsky
KVERT reported that weak seismic activity at Karymsky was detected during 1-8 February. Satellite imagery showed a thermal anomaly on the volcano on 31 January and 1 February. The Aviation Color Code remained at Orange.
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Report for Kilauea
During 6-12 February HVO reported that the circulating lava lake periodically rose and fell in the deep pit within Kilauea's Halema'uma'u Crater. The plume from the vent continued to deposit variable amounts of ash, spatter, and Pele's hair onto nearby areas. The lake level was 27 m below the Halema'uma'u crater floor on 6 February, 25-27 m below the floor on 7 February, and 31 m below the floor on 11 February.

At Pu'u 'O'o Crater, glow emanated from spatter cones on the SE part of the crater floor, from a spatter cone at the NW edge of the floor, and from a perched crusted lava lake on the NE part of the floor. Multiple lava flows from the lava lake (perched 5-6 m higher than the crater rim) traveled across the NE flank of Pu'u 'O'o cone to the cone's base and continued to advance over older flows. Lava flows were active on the pali and in a 1-km-wide area on the coastal plain. To the W, a 350-m-wide lava flow advanced more than 1.2 km from the base of the pali and remained active with scattered breakouts. Web cameras recorded steam plumes from lava sporadically entering the ocean at multiple locations.
Source: US Geological Survey Hawaiian Volcano Observatory (HVO)
Report for Kizimen
KVERT reported that during 1-8 February moderate seismic activity continued at Kizimen. Video data showed that lava continued to extrude from the summit onto the E and S flanks. Summit incandescence, strong gas-and-steam activity, and hot avalanches on the W and E flanks accompanied the process. Satellite images detected a daily thermal anomaly over the volcano. The Aviation Color Code remained at Orange.
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Report for Manam
Based on observations of satellite imagery and wind data analyses, the Darwin VAAC reported that an ash plume from Manam rose to an altitude of 10.1 km (33,000 ft) a.s.l. on 12 February and drifted 55 km SW.
Source: Darwin Volcanic Ash Advisory Centre (VAAC)
Report for Paluweh
Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that during 8-12 February ash plumes from Paluweh rose to altitudes of 2.1-3.7 km (7,000-12,000 ft) a.s.l. and drifted 35-110 km NW, NNW, and N.
Source: Darwin Volcanic Ash Advisory Centre (VAAC)
Report for Santa Maria
INSIVUMEH reported that during 7-8 and 10-11 February explosions from Santa María's Santiaguito lava-dome complex produced ash plumes that rose 500-700 m and caused ashfall in La Florida (5 km S). Steam plumes rose 200 m and drifted SW, and avalanches from lava-flow fronts traveled SE down the Nima I drainage.
Source: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH)
Report for Sheveluch
Based on visual observations and analyses of satellite data, KVERT reported that during 1-8 February a viscous lava flow effused on the E flank of Shiveluch's lava dome, accompanied by hot avalanches, incandescence, and fumarolic activity. Satellite imagery showed a daily thermal anomaly on the lava dome. The Aviation Color Code remained at Orange.
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Report for Tolbachik
KVERT reported that the S fissure along the W side of Tolbachinsky Dol, a lava plateau on the SW side of Tolbachik, continued to produce very fluid lava flows during 1-8 February that traveled to the W and S sides of the plateau. Four cinder cones continued to grow on the S fissure above Krasny cone. Gas-and-ash plumes rose to an altitude of 3.5 km (11,500 ft) a.s.l. and drifted in multiple directions. A very large thermal anomaly on the N part of Tolbachinsky Dol was visible daily in satellite imagery. The Aviation Color Code remained at Orange.
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)