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Volcanic activity worldwide 4 Aug 2015: Raung volcano, Sinabung

Tuesday Aug 04, 2015 21:00 PM |

Landsat 8 satellite image of Raung on 27 July. A gray patch left of a forest fire is visible on the NE flank.
Landsat 8 satellite image of Raung on 27 July. A gray patch left of a forest fire is visible on the NE flank.
Pyroclastic flow from Sinabung today (image: Samri Sihombing / facebook)
Pyroclastic flow from Sinabung today (image: Samri Sihombing / facebook)
Raung (East Java): The eruption at the volcano remains very intense and might have increased during the past days.
An ash plume of 200 km length has been drifting south today.
According to Indonesian press reports, new fissures have been reported (probably on the western flank) and incandescent ejecta were seen to up to a height of 1500 m. Some of them might have landed on the NE flank, where they probably caused a forest fire observed during 20-25 July.

Sinabung (Sumatra, Indonesia): At least two pyroclastic flows occurred today at the volcano, continuing the destruction of the steeply emplaced lava lobes on the upper SE and E side.
Our friends Samri and David reported heavy ash falls southeast of the volcano, forcing shops to close and people stay indoors.
Previous news
Heat signal from Raung volcano during the past year (MIROVA)
Monday, Aug 03, 2015
Karymsky (Kamchatka): Explosions with ash emissions detected on satellite images have been more frequent lately. Yesterday, VAAC Tokyo reports an ash plume at 14,000 ft (4.2 km) altitude drifting north from the volcano. ... [more]
Ash plume from Manam volcano (Himawari-8 True Color imagery)
Friday, Jul 31, 2015
Manam (Papua New Guinea): A large explosive eruption occurred at the volcano today. The event produced an ash column that rose to approx. 65,000 ft (20 km) altitude and started to drift SW. ... [more]
Thursday, Jul 30, 2015
Piton de la Fournaise (La Réunion): A new eruption might be under way at the volcano. Since last weekend, seismic activity from a source at 1-2 km depth beneath Dolomieu crater has been increasing. In addition, increased degassing and inflation of the Dolomieu crater have been detected, both likely signs of a new magma intrusion at shallow depth. ... [more]
Recent earthquakes under Meakan volcano (JMA)
Tuesday, Jul 28, 2015
Karymsky (Kamchatka): An ash plume from an explosion produced an ash plume that rose to 14,000 ft (4.2 km) altitude and drifted north this morning. The volcano continues to produce intermittent strombolian- to vulcanian-type explosive eruptions. ... [more]
Pyroclastic flow at Sinabung volcano today at 12:22
Monday, Jul 27, 2015
Sinabung (Sumatra, Indonesia): (27 Jul) Activity has remained essentially unchanged. Effusion of viscous lava continues at slow pace to feed the lava dome with two active lobes on the SE and E upper flanks. At 12:22 local time today, a small part of the eastern lobe collapsed into a medium-sized pyroclastic flow that traveled approx. 2.5 km towards the outskirts of the (already evacuated and destroyed) villages of Bekerah and Simacem. ... [more]

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