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Volcanoes Today, 28 Jun 2015: Dukono volcano, Raung, Sangeang Api, Manam

Sunday Jun 28, 2015 11:00 AM |
Heat signal from Raung volcano during the past year (MIROVA)
Heat signal from Raung volcano during the past year (MIROVA)
Heat signal from Sangeang Api volcano during the past year (MIROVA)
Heat signal from Sangeang Api volcano during the past year (MIROVA)
Manam (Papua New Guinea): According to Darwin VAAC, an ash plume from the volcano rose 8,000 ft and extended 70 km to the NE today. The volcano seems to be in a phase of intermittent mild explosive activity.

Raung (East Java): Eruptive activity continues in the volcano's summit crater. Heat emission remains intense, suggesting the presence of lava (flow?), likely in combination with more or less intense strombolian activity.
An ash plume was seen on satellite data last Friday. (VAAC Darwin)

Sangeang Api (Indonesia): Satellite data suggest that a new lava flow is active traveling from the summit crater of Doro Api through a narrow ravine on the SE side of the volcano.
It is possible that effusive activity which began in early June last year in reality never ceased, but increased again now. The volcano began erupting with a large explosion on 30 May and several smaller ones in early June last year. This was followed by the effusion of a flow that quickly traveled down the SE slope of the volcano. Thermal signals remained intense until November 2014, then decreased, but did not disappear, but clearly picked up again late April this year, indicating the presence of active lava always in the same path.
The current length of the flow is probably around 1.5 km.

Dukono (Halmahera): Ash emissions at variying intensity continue from the volcano. Darwin VAAC reported ah ash plume that rose to 6,000 ft (1.8 km) and extended 50 km NE yesterday.
Previous news
Landsat 8 infrared image of Nishinoshima on 21 June 2015 showing the active areas (vent and lava delta)
Tuesday, Jun 23, 2015
Nishino-shima (Volcano Islands, Japan): The eruption on the island continues with apparently relatively steady lava effusion that feeds active flows reaching and enlarging the SE corner of the island, which has now 2.7 square kilometer of surface. ... [more]
Steam and ash plume from Asama volcano
Monday, Jun 22, 2015
Zhupanovsky (Kamchatka, Russia): A small ash emission from the volcano was reported on Saturday. Based on satellite imagery, an ash plume rose to 24,000 ft (7.2 km) altitude and drifted north (Tokyo VAAC). ... [more]
Thursday, Jun 18, 2015
Cleveland (Aleutian Islands, Alaska): The Alaska Volcano Observatory detected that a new (so far minor) eruptive episode has started at the volcano recently: ... [more]
Eruption from Semeru on 11 June 2015 (photo: Aris Yanto)
Tuesday, Jun 16, 2015
Asama (Honshu): (16 Jun) A small eruption occurred at the volcano this morning around 9am local time. ... [more]
Pyroclastic flow at Sinabung yesterday (image: Sadrah Peranginangin / facebook)
Sunday, Jun 14, 2015
Sinabung (Sumatra, Indonesia): (14 Jun) Pyroclastic flows caused by collapse of parts of the viscous dome on the volcano's summit have started to be more frequent and larger again. Yesterday, about ten flows were generated that descended both through the SE and the ENE channel, reaching up to 3 km distance. ... [more]

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