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Volcanic activity worldwide 3 Sep 2015: Piton de la Fournaise volcano, Sakurajima
Thursday Sep 03, 2015 21:00 PM | Sakurajima (Kyushu, Japan)
: (3 Sep
) The alert level was downgraded back to 3 (out of 5) last Tuesday as signs of unrest and the risk of a sudden major explosion have decreased.
No rapid crustal movements have been detected since 17 August, suggesting that the inferred magma intrusion has stopped and is now stagnating & cooling instead of migrating further towards the surface.
The volcano continues to be unusually calm with only minor explosions and ash emissions occurring occasionally from the Showa crater.Piton de la Fournaise (La Réunion)
: (3 Sep
) The eruption continues at weak intensity. As of yesterday, only one vent, a cone about 20 m high, remained active producing pulsating fountain-like strombolian explosions of bursting lava bubbles that reach 15-20 m height.
The lava flows approx. 50 m through a tube and then forms a flow extending about 1 km to the south, with an average thickness of 2-3 meters. The front of the flow was not moving yesterday.
Monday, Aug 31, 2015
Manam (Papua New Guinea)
: A volcanic ash plume at estimated 7,000 ft (2.1 km) altitude extending 70 km north from the volcano was reported this morning (VAAC Darwin). ...
Thursday, Aug 27, 2015
: Lava extrusion into the volcano's lava dome continues at moderate intensity. Small incandescent avalanches are sometimes visible on night-time webcam images. Steaming and weak to moderate ash emissions accompany this activity. ...
Tuesday, Aug 25, 2015
: (25 Aug
) A stronger than usual explosion occurred yesterday morning at 08:43 local time, producing a plume that rose approx. 2 km above the lava dome and generated small pyroclastic flows. ...
Monday, Aug 24, 2015
: Activity has been low during the past days, with only intense steaming and dilute ash emissions from the Nakadake crater. Incandescence continues to be visible from the main vent, suggesting magma remains close to the surface. ...
Sunday, Aug 23, 2015
: Ash emissions have been increasing and producing plumes that rose 2 km above the summit and drifted west for over 50 km. ...
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