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Volcanic activity worldwide 28 Jun 2018: Fuego volcano, Popocatépetl, Dukono, Agung, Reventador, Cl...

Thursday Jun 28, 2018 21:00 PM |

Map of today's active volcanoes
Map of today's active volcanoes
Satellite image of Dukono volcano on 28 Jun 2018
Satellite image of Dukono volcano on 28 Jun 2018
Satellite image of Agung volcano on 28 Jun 2018
Satellite image of Agung volcano on 28 Jun 2018
A photo of Mount Cleveland taken on July 24, 2016. This image shows Cleveland's steep stratovolcano geometry and minor degassing from the summit. Photo by John Lyons, Alaska Volcano Observatory / USGS.
A photo of Mount Cleveland taken on July 24, 2016. This image shows Cleveland's steep stratovolcano geometry and minor degassing from the summit. Photo by John Lyons, Alaska Volcano Observatory / USGS.
Dukono (Halmahera): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA EMISSION TO FL060.
...28 Jun:
Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA EMISSION TO FL060.

Agung (Bali): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA EMISSION TO FL230 EXT WSW OBS VA DTG:28/1550Z
...28 Jun:
Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA CONTINOUS EMISSION TO FL120 OBS VA DTG:28/0325Z

Cleveland (Aleutian Islands, Alaska): The Alaska Volcano Observatory (AVO) reported on Tuesday evening 26 June 2018 that satellite images obtained from Cleveland volcano the day before show a small circular lava flow of about 80 meters (260 feet) diameter covering the floor of the summit crater. The presence of a lava flow over the active vent increases the possibility of a vent clearing explosion over the coming days to weeks and thus AVO is raising the Aviation Colour Code ORANGE and the Volcano Alert Level to WATCH.

Cleveland volcano, located on the uninhabited Chuginadak Island in the Aleutian Chain, is monitored by only two seismic stations which restricts the AVO's ability to detect precursory unrest that may lead to an explosive eruption. Recently there were some problems with data transmission of ongoing geophysical monitoring so that seismic and infrared data were temporarily unavailable, but over the past weeks the volcano has been in constant low-level seismic unrest. Although satellite observations were mostly obscured by clouds over the past days, a possible steam emission has been noted that may be related to the effusion of lava in the summit crater.

The last detected explosive activity at Cleveland volcano occurred at 21h49 on May 4, 2018 (local time) and generated an ash plume that rose to 6700 m (22,000 ft). The AVO reports that ‘Occasional, short duration explosive activity with minimal to no precursory signals is common at Cleveland Volcano, and explosions may occur without warning. Explosions typically produce relatively small volcanic ash clouds that dissipate within hours; however, more significant ash emissions may occur as they have in the past.’ KTVA reports in an online news article that Cleveland volcano is responsible for the only known fatality from an Aleutian eruption. According to them the Oregon State University documents this deadly incident among a small group of soldiers that was stationed on the island during an eruption in June of 1944.

Popocatépetl (Central Mexico): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: PSBL VA EMS AT 28/0850Z

Fuego (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: RPRTS OF VA EM

Reventador (Ecuador): (28 Jun) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: NEW VA EMS ARND 28/0045Z

Sabancaya (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: INTERMITTENT EMISSIONS
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