Volcanoes Today, 23 Jun 2017: Karymsky volcano, Klyuchevskoy, Shiveluch, Dukono, Rincón de la Vieja, Reventador, Poas, Turrialba
Freitag Jun 23, 2017 19:00 |
Klyuchevskoy volcano with a small steam plume this morning
Satellite image of Klyuchevskoy volcano on 22 Jun 2017
Satellite image of Ulawun volcano on 22 Jun 2017
Explosion at Sinabung on 21 June 2017 (image: Endro Lewa - facebook.com/endrolewa)
Satellite image of Dukono volcano on 23 Jun 2017
Klyuchevskoy (Kamchatka): Mild, strombolian-type eruptions continue to occur at the summit vent of the volcano.
Eruption of Sabancaya volcano this evening (late morning in Peru)
During 9-16 June this activity generated ash plumes that rose to 6-7 km (19,700-23,000 ft) a.s.l. and drifted up to about 580 km SE and SW. A weak thermal anomaly was identified in satellite images during 11-16 June. (partially from Smithsonian / USGS Weekly Volcanic Activity Report 14-20 June 2017)
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA IS NOT IDENTIFIABLE ON SATELLITE IMAGERY.
Karymsky (Kamchatka): No explosions with significant ash emissions have been detected during the past 14 days, although a thermal anomaly continues to be present at the summit, suggesting that mild activity still occurs from the volcano.
Shiveluch (Kamchatka): The volcano has remained calmer since the large-scale explosion on 15 June, which had produced an ash plume that rose up to 12 km (39,000 ft) altitude and drifted more than 1000 km NE and SE, causing ash fall in Klyuchi (50 km SW), Maiskoe, Kozyrevsk (115 km SW), and Atlasovo (160 km SW).
During 10-13 June explosions at the volcano had also produced ash plumes that rose as high as 8 km (26,200 ft) a.s.l. and drifted 1,500 km SE and NW.
Bezymianny (Central Kamchatka Depression): 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 16:53 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 21:10 the ash cloud was 212 x 115 km in size and drifting E; the leading edge of the cloud was about 245 km E.
(from: Smithsonian / USGS Weekly Volcanic Activity Report 14-20 June 2017)
Ebeko (Paramushir Island): Explosive activity continues at the volcano. KVERT reported that during 9-16 June, residents from Severo-Kurilsk (Paramushir Island) about 7 km E of the volcano observed ash emissions.
Langila (New Britain, Papua New Guinea): The volcano continues to produce minor explosive (ash emissions) and possibly effusive (lava flows) activity. Ash emissions were detected by Darwin VAAC on satellite imagery on 14 June (1.8 km / 6,000 ft altitude, drifting WNW), and on 20 June (2.1 km / 7,000 ft).
Ulawun (New Britain, Papua New Guinea): (22 Jun) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA OBS TO FL100 MOV W AT 22/2130Z OBS VA DTG:22/2210Z
Sinabung (Sumatra, Indonesia): Activity at the volcano remains elevated. A series of explosions and partial collapses of the overspilling lava tongues with pyroclastic flows occurred during the past week generating ash plumes that rose 3-6.4 km (10,000-21,000 ft) a.s.l. and drifted in multiple directions.
Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CVGHM REPORTED ERUPTION TO FL100 MOVING ESE AT 23/0226Z.
Dukono (Halmahera): The volcano's activity has not changed much over the past months. Intense ash emissions from near-constant explosions and continuous ash venting in the summit crater produce ash plumes that typically rise 1-2 km and drift for tens of km into various directions, detected almost daily by Darwin VAAC.
A video recorded during a visit in late May, taken by our friend Aris Yanto, shows this activity from close:
Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VONA FOR ERUPTION TO FL070 AT 23/0035Z.
Cleveland (Aleutian Islands, Alaska): No unusual activity has occurred at the volcano recently, but the lava dome in the summit crater continues to be active. Minor steaming can be occasionally seen and satellite data continue to detect a weak thermal anomaly.
The Aviation Color Code of Cleveland remains at Orange and the Volcano Alert Level at Watch.
Turrialba (Costa Rica): During 14-15 June gas emissions at Turrialba sometimes contained ash and rose no higher than 300 m above the crater.
Events at 06:20 and 14:05 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. (Smithsonian / USGS Weekly Volcanic Activity Report 14-20 June 2017)
Rincón de la Vieja (Costa Rica): 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.
(Source: Smithsonian / USGS Weekly Volcanic Activity Report 14-20 June 2017)
Poas (Costa Rica): Small phreatic eruptions continue to occur from the volcano's crater lake. Ash emissions less than 1 km high and mostly drifting N were seen frequently during breaks in weather by observers near the crater: on 16 June, at 18 June at 13:40 on 18 June, and at 11:00 and 13:50 on 20 June.
Most of the time, a steam plume rising less than 1 km is seen from the crater lake.
Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: EMS AT 23/1128Z REPORTED BY
Sabancaya (Peru): The volcano continues to produce very frequent explosions of small to moderate size although the intensity has decreased a little bit, according to the latest official reports.
from the Smithsonian / USGS Weekly Volcanic Activity Report 14-20 June 2017:
During 12-18 June, 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.
Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: SPORADIC PUFFS OF VA OBS VA DTG:23/0705Z
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