Activity for the week of 14 June-20 June 2017
- Info & Contacts
Activity for the week of 14 June-20 June 2017
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.
|Bogoslof||Fox Islands (USA)||New|
|Karymsky||Eastern Kamchatka (Russia)||New|
|Rincon de la Vieja||Costa Rica||New|
|Sheveluch||Central Kamchatka (Russia)||New|
|Bagana||Bougainville (Papua New Guinea)||Ongoing|
|Bezymianny||Central Kamchatka (Russia)||Ongoing|
|Cleveland||Chuginadak Island (USA)||Ongoing|
|Ebeko||Paramushir Island (Russia)||Ongoing|
|Kilauea||Hawaiian Islands (USA)||Ongoing|
|Klyuchevskoy||Central Kamchatka (Russia)||Ongoing|
|Langila||New Britain (Papua New Guinea)||Ongoing|
Bogoslof | Fox Islands (USA) | 53.93°N, 168.03°W | Elevation 150 m
AVO reported that elevated surface temperatures and a small steam emission at Bogoslof were identified in satellite images during 13-14 June. Weakly elevated surface temperatures were detected on 16 June, and a 13-km-long steam plume was visible on 18 June. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch.
Karymsky | Eastern Kamchatka (Russia) | 54.049°N, 159.443°E | Elevation 1513 m
KVERT reported that a thermal anomaly over Karymsky was identified in satellite images during 10-12 and 14-15 June. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).
Pavlof | United States | 55.417°N, 161.894°W | Elevation 2493 m
AVO reported that seismicity at Pavlof had declined since the small increase on 7 June, and no unusual activity was observed in seismic or infrasound data through 20 June. Minor steam emissions occasionally rose from the summit crater. Satellite images showed an approximately 55 km-long steam plume drifting W on 14 June, and a thermal anomaly during 15-16 and 20 June. The Aviation Color Code remained at Yellow and the Volcano Alert Level remained at Advisory.
Rincon de la Vieja | Costa Rica | 10.83°N, 85.324°W | Elevation 1916 m
OVSICORI-UNA reported that on 15 June a diffuse plume of mainly water vapor rose 50 m above Rincón de la Vieja's crater rim. A small hydrothermal explosion from the crater with the highly acidic lake was detected around noon on 18 June. In a report posted the next day OVSICORI-UNA noted that seismicity was characterized by low-frequency events, volcano-tectonic events, and tremor with intensifying amplitude; the seismic patterns were similar to those that preceded the phreatomagmatic events on 23 May and 11 June, though the recent seismicity was not as energetic.
Sheveluch | Central Kamchatka (Russia) | 56.653°N, 161.36°E | Elevation 3283 m
KVERT reported that during 10-13 June explosions at Sheveluch produced ash plumes that rose as high as 8 km (26,200 ft) a.s.l. and drifted 1,500 km SE and NW. At 0425 on 15 June powerful explosions generated ash plumes that rose as high as 12 km (39,400 ft) a.s.l. The Aviation Color Code was raised to Red (the highest level on a four-color scale), and then back down to Orange at the end of the day. Ash plumes drifted 1,000 km NE and SW during 15-16 June. Ash fell in Klyuchi (50 km SW), Maiskoe, Kozyrevsk (115 km SW), and Atlasovo (160 km SW).
Aira | Kyushu (Japan) | 31.593°N, 130.657°E | Elevation 1117 m
JMA reported that an event at Showa Crater (at Aira Caldera’s Sakurajima volcano) at 1208 on 15 June generated an ash plume that rose 2.8 km above the crater rim. The Alert Level remained at 3 (on a 5-level scale).
Bagana | Bougainville (Papua New Guinea) | 6.137°S, 155.196°E | Elevation 1855 m
Based on analyses of satellite imagery and model data, the Darwin VAAC reported that on 14 June an ash plume from Bagana drifted W at an altitude of 2.1 km (7,000 ft) a.s.l. No ash was identified in inages later that day.
Bezymianny | Central Kamchatka (Russia) | 55.972°N, 160.595°E | Elevation 2882 m
On 15 June KVERT reported that the temperature of a thermal anomaly identified in satellite images had increased, and that the webcam recorded a gas-and-steam plume rising above Bezymianny to 4 km (13,100 ft) a.s.l. and drifted SSE. Hot avalanches of material originated from the lava dome. An explosive event began at 1653 on 16 June, producing an ash cloud 28 x 25 km in size that drifted NE. The Aviation Color Code was raised to Red (the highest level on a four-color scale), but lowered back down to Orange about 5 hours later. At 2110 the ash cloud was 212 x 115 km in size and drifting E; the leading edge of the cloud was about 245 km E.
Cleveland | Chuginadak Island (USA) | 52.825°N, 169.944°W | Elevation 1730 m
AVO reported that no unusual activity at Cleveland had been detected in seismic or infrasound data during 14-20 June. Minor steaming from the summit was recorded by a webcam during 17-18 June, and slightly elevated surface temperatures were identified in a satellite image acquired on 19 and 20 June. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch.
Dukono | Halmahera (Indonesia) | 1.693°N, 127.894°E | Elevation 1229 m
Based on analyses of satellite imagery, wind model data, and notices from PVMBG, the Darwin VAAC reported that during 14-20 June ash plumes from Dukono rose to altitudes of 1.5-3 km (5,000-10,000 ft) a.s.l. and drifted in multiple directions.
Ebeko | Paramushir Island (Russia) | 50.686°N, 156.014°E | Elevation 1103 m
Based on observations by residents of Severo-Kurilsk (Paramushir Island) about 7 km E of Ebeko, KVERT reported that explosive activity continued at the volcano during 9-16 June. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).
Fuego | Guatemala | 14.473°N, 90.88°W | Elevation 3763 m
INSIVUMEH reported that during 13-14 June explosions at Fuego generated shock waves detected within 10 km, and block avalanches descended the Ceniza (SSW), Taniluyá (SW), Santa Teresa (SW), and Trinidad (S) ravines. On 18 June heavy rain triggered a 20-m-wide, 1.5-m-deep lahar that traveled down the El Jute (SE) ravine, carrying tree trunks and blocks as large a 2 m in diameter. Explosions during 18-20 June produced ash plumes that rose as high as 950 m above the crater and drifted 8-12 km S, SW, and W. Ashfall was noted in areas downwind including Morelia (9 km SW), Santa Sofía (12 km SW), Finca Palo Verde, El Porvenir (8 km ENE), Sangre de Cristo (8 km WSW), and Panimaché I and II (8 km SW). Incandescent material was ejected 100-200 m above the crater rim, and caused avalanches of material that traveled into the Ceniza, Taniluyá, Trinidad, and Santa Teresa drainages.
Ibu | Halmahera (Indonesia) | 1.488°N, 127.63°E | Elevation 1325 m
Based on PVMBG observations, satellite images, and wind data, the Darwin VAAC reported that during 14 and 17-19 June ash plumes from Ibu rose 1.5-1.8 km (5,000-6,000 ft) a.s.l. and drifted S, SW, W, and N.
Kilauea | Hawaiian Islands (USA) | 19.421°N, 155.287°W | Elevation 1222 m
During 14-20 June HVO reported that the lava lake continued to rise, fall, and spatter in Kilauea’s Overlook crater. Webcams recorded incandescence from long-active sources within Pu'u 'O'o Crater, from a vent high on the NE flank of the cone, and from a small lava pond (which had many small spattering sites along the margin) in a pit on the W side of the crater. The 61G lava flow, originating from a vent on Pu'u 'O'o Crater's E flank, continued to enter the ocean at Kamokuna. Field observations on 31 May revealed that the lava delta had grown to an area of approximately 0.01 square kilometers. A solidified lava ramp extended from the tube exit high on the sea cliff down to the delta, whose leading edge was about 100 m from the tube exit on the sea cliff. Lava flows from the upper portion of the flow field continued to advance downslope, producing surface flows above and on the pali.
Klyuchevskoy | Central Kamchatka (Russia) | 56.056°N, 160.642°E | Elevation 4754 m
KVERT reported that during 9-16 June explosions at Klyuchevskoy generated ash plumes that rose to 6-7 km (19,700-23,000 ft) a.s.l. and drifted about 580 km SE and SW. A weak thermal anomaly was identified in satellite images during 11-16 June. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).
Langila | New Britain (Papua New Guinea) | 5.525°S, 148.42°E | Elevation 1330 m
Based on analyses of satellite imagery and wind model data, the Darwin VAAC reported that on 14 June ash plumes from Langila rose 1.8 km (6,000 ft) a.s.l. and drifted WNW. On 20 June an ash plume drifted NW at an altitude of 2.1 (7,000 ft) a.s.l.
Poas | Costa Rica | 10.2°N, 84.233°W | Elevation 2708 m
OVSICORI-UNA reported that during 13-15 June gas emissions from Poás rose no higher than 500 m above the crater rim and drifted N. During breaks in weather, observers near the crater on 16 June noted ash emissions rising less than 1 km above the crater rim and drifting N. Ash emissions from events at 1340 on 18 June, and 1100 and 1350 on 20 June, rose less than 1 km.
Sabancaya | Peru | 15.787°S, 71.857°W | Elevation 5960 m
Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that explosive activity at Sabancaya slightly decreased from the previous week; there was an average of 26 explosions recorded per day during 12-18 June. Gas-and-ash plumes rose as high as 3.7 km above the crater rim and drifted more than 40 km SW. The MIROVA system detected nine thermal anomalies, spread over the SE, N, and NW flanks. Sulfur dioxide flux was as high as 3,557 tons per day on 14 June.
Sinabung | Indonesia | 3.17°N, 98.392°E | Elevation 2460 m
Based on PVMBG observations, satellite images, and wind data, the Darwin VAAC reported that during 14-17 and 19 June ash plumes from Sinabung rose 3-6.4 km (10,000-21,000 ft) a.s.l. and drifted in multiple directions.
Turrialba | Costa Rica | 10.025°N, 83.767°W | Elevation 3340 m
OVSICORI-UNA reported that during 14-15 June gas emissions at Turrialba sometimes contained ash and rose no higher than 300 m above the crater. Events at 0620 and 1405 on 16 June generated ash plumes that rose 500 m and drifted NW, and 200 m and drifted S, respectively. Passive ash emissions during 19-20 June rose as high as 1 km and drifted in multiple directions.
Weekly Reports Archive
|Arenal||Grimsvotn||Manda Hararo||Seulawah Agam|
|Axial Seamount||Hekla||McDonald Islands||Sirung|
|Bagana||Home Reef||Metis Shoal||Sorikmarapi|
|Bamus||Hudson, Cerro||Miyakejima||Soufriere Hills|
|Banda Api||Huila, Nevado del||Momotombo||Soufrière St. Vincent|
|Bardarbunga||Hunga Tonga-Hunga Ha'apai||Monowai||South Sarigan Seamount|
|Barren Island||Ibu||Montagu Island||Spurr|
|Batur||Ijen||Moyorodake [Medvezhia]||St. Helens|
|Bristol Island||Ioto||Negro, Cerro||Sundoro|
|Cameroon||Kaba||NW Rota-1||Tair, Jebel at|
|Campi Flegrei Mar Sicilia||Kambalny||Nyamuragira||Takawangha|
|Chiles-Cerro Negro||Kasatochi||Palena Volcanic Group||Tara, Batu|
|Chillan, Nevados de||Katla||Paluweh||Telica|
|Cotopaxi||Kick 'em Jenny||Poas||Toliman|
|Dieng Volcanic Complex||Klyuchevskoy||Raoul Island||Ulawun|
|Dukono||Kolokol Group||Rasshua||Unknown Source|
|Ekarma||Krummel-Garbuna-Welcker||Rincon de la Vieja||West Mata|
|Etorofu-Yakeyama [Grozny Group]||Lamongan||Ruapehu||Zavodovski|
|Eyjafjallajokull||Langila||Ruiz, Nevado del||Zhupanovsky|
|Fonualei||Lengai, Ol Doinyo||Salak|
|Fournaise, Piton de la||Leroboleng||San Cristobal|
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.
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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
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.
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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.
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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
CENAPRED - Centro Nacionale de Prevencion de Desastres (México)
COSPEC - Correlation Spectrometer
CVGHM (formerly VSI) - Center of Volcanology and Geological Hazard Mitigation
GMS - Geostationary Meteorological Satellite
GVO - Goma Volcano Observatory
ICE - Instituto Costarricense de Electricidad (Costa Rica)
IG - Instituto Geofísico (Ecuador)
IGNS - Institute of Geological and Nuclear Sciences (New Zealand)
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)
M - magnitude
METEOSAT - Meteorological Satellite
MWO - Meteorological Watch Office
NOTAM - Notice to Airmen
OVSICORI-UNA - Observatorio Vulcanologico y Sismologico de Costa Rica, Universidad Nacional (Costa Rica)
RSAM - Real-time Seismic Amplitude Measurement
RVO - Rabaul Volcano Observatory
SERNAGEOMIN - Servicio Nacional de Geología y Minería (Chile)
SIGMET - Significant Meteorological Information
SNET - Servicio Nacional de Estudios Territoriales (El Salvador)
SVERT - Sakhalin Volcanic Eruption Response Team (Kurile Islands)
UTC - Coordinated Universal Time
VAAC - Volcanic Ash Advisory Center
VRC - Volcano Research Center (Japan)