volcanic Activity for the week of 16 August-22 August 2017
yup 4 new aditions this week......
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.
[TABLE]
[TR]
[TH]Name[/TH]
[TH]Location[/TH]
[TH]Activity[/TH]
[/TR]
[TR]
[TD]
Kanlaon[/TD]
[TD]Philippines[/TD]
[TD]New[/TD]
[/TR]
[TR]
[TD]
Pacaya[/TD]
[TD]Guatemala[/TD]
[TD]New[/TD]
[/TR]
[TR]
[TD]
San Cristobal[/TD]
[TD]Nicaragua[/TD]
[TD]New[/TD]
[/TR]
[TR]
[TD]
Sangay[/TD]
[TD]Ecuador[/TD]
[TD]New[/TD]
[/TR]
[TR]
[TD]
Ulawun[/TD]
[TD]New Britain (Papua New Guinea)[/TD]
[TD]New[/TD]
[/TR]
[TR]
[TD="colspan: 3"][HR][/HR][/TD]
[/TR]
[TR]
[TD]
Aira[/TD]
[TD]Kyushu (Japan)[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Bezymianny[/TD]
[TD]Central Kamchatka (Russia)[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Bogoslof[/TD]
[TD]Fox Islands (USA)[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Cleveland[/TD]
[TD]Chuginadak Island (USA)[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Dukono[/TD]
[TD]Halmahera (Indonesia)[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Fuego[/TD]
[TD]Guatemala[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Karymsky[/TD]
[TD]Eastern Kamchatka (Russia)[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Kilauea[/TD]
[TD]Hawaiian Islands (USA)[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Klyuchevskoy[/TD]
[TD]Central Kamchatka (Russia)[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Langila[/TD]
[TD]New Britain (Papua New Guinea)[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Manam[/TD]
[TD]Papua New Guinea[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Piton de la Fournaise[/TD]
[TD]Reunion Island (France)[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Poas[/TD]
[TD]Costa Rica[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Sabancaya[/TD]
[TD]Peru[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Sheveluch[/TD]
[TD]Central Kamchatka (Russia)[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Sinabung[/TD]
[TD]Indonesia[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Suwanosejima[/TD]
[TD]Ryukyu Islands (Japan)[/TD]
[TD]Ongoing[/TD]
[/TR]
[TR]
[TD]
Turrialba[/TD]
[TD]Costa Rica[/TD]
[TD]Ongoing[/TD]
[/TR]
[/TABLE]
New Activity/Unrest
Kanlaon | Philippines | 10.412°N, 123.132°E | Elevation 2435 m
PHIVOLCS reported that between 24 June and 18 August the seismic network at Kanlaon detected 244 volcanic earthquakes. The report stated that the increased seismic activity could be followed by
phreatic explosions at the summit crater, despite the absence of visible degassing or steaming from the active
vent during 2017. The Alert Level was raised to 1 (on a scale of 0-5), and the public was warned to not enter the 4-km-radius Permanent Danger Zone (PDZ).
Source:
Philippine Institute of Volcanology and Seismology (PHIVOLCS)
[HR][/HR]
Pacaya | Guatemala | 14.382°N, 90.601°W | Elevation 2569 m
INSIVUMEH reported that during 20-22 August
Strombolian explosions at Pacaya’s Mackenney cone ejected material as high as 75 m above the crater rim and onto the flanks, generating avalanches mainly on the W flank.
Source:
Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH)
[HR][/HR]
San Cristobal | Nicaragua | 12.702°N, 87.004°W | Elevation 1745 m
According to a news report, at 0518 on 18 August SINAPRED received reports of
ash fall in some communities near San Cristóbal, including La Grecia, and the municipalities of El Viejo (18 km WSW) and El Realejo (25 km SW). Based on analysis of satellite images and information from
INETER, the Washington
VAAC reported that a small ash puff from the volcano rose 300 m above the crater rim and drifted NW. Later that day a gas emission possibly containing ash rose 300 m and drifted W. An ash plume identified in satellite images extended as far as 265 km W. Seismicity was elevated. Steam-and-gas emissions continued through the rest of the day.
Sources:
Washington Volcanic Ash Advisory Center (VAAC),
El 19 Digital
[HR][/HR]
Sangay | Ecuador | 2.005°S, 78.341°W | Elevation 5286 m
Based on information from IG, the Guayaquil
MWO, and satellite data the Washington
VAAC reported continuing
ash emissions at Sangay. On 16 August an ash plume drifted W. On 17 August an ash plume rose to an altitude of 8.2 km (27,000 ft)
a.s.l. and drifted NW, and was followed by several more ash puffs. During 19-20 August ash plumes rose to 5.8 km (19,000 ft) a.s.l. and drifted SW and W. A thermal anomaly was identified in satellite images on 20 August.
Source:
Washington Volcanic Ash Advisory Center (VAAC)
[HR][/HR]