Nishino-shima volcano (Japan): eruption still continuing, island grows lava delta on the SE side
Tue, 23 Jun 2015, 13:5113:51 PM | BY: T
Landsat 8 infrared image of Nishinoshima on 21 June 2015 showing the active areas (vent and lava delta)
View of the growing lava delta on the SE shore
Thermal image showing strombolian activity at the central vent
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.
Map of the island with contours from the past months (dotted black line show the now completely buried old island)
Mild strombolian activity and strong degassing occurs at the main vent, where a nice cinder cone has grown. The lava mostly flows through tubes, where it is hidden, to reach the active lava delta on the SE tip of the island. A smaller part seems also to feed/inflate inland surface lava flows in an area NE of the cone.
Tue, 3 Mar 2015, 12:05
The eruption continued at least through 27 February. Read all
Wed, 25 Feb 2015, 06:00
Nishinoshima volcano (Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 25 February-3 March 2015 (Continuing Activity)
According to news articles, the eruption at Nishinoshima continued at least through 27 February. The Japan Coast Guard noted that the island had grown to about 2.46 square kilometers and the active cone was about 100 m tall. Explosions occurred several times per minute and ash-and-gas plumes rose 1.2 km. ... Read all