Volcanos

Roundup of Global Volcanic Activity

Stromboli (Eolian Islands, Italy): Lava continues to flow from the fissure vent at the base of the NE crater. Compared to the first week, the effusion rate has become more unstable, causing several surges and intervals of strongly decreasing activity.

The fluctuating rate of effusion has also caused the formation of several overlapping new lava channels in the upper area of the Sciara. Two such surges occurred yesterday and today.

Zhupanovsky (Kamchatka, Russia): Intermittent explosive activity continues at the volcano. Volcanic ash plumes drifting SSE were reported yesterday and Tuesday rising to 10-15,000 ft (3-4.5 km) altitude (VAAC Tokyo).

Kusatsu-Shirane (Honshu): JMA reported that during 8-15 August volcanic earthquakes continued at Kusatsu-Shiranesan’s crater, although they had decreased from early August and tremor was absent. The Alert Level remains at 2 (on a scale of 1-5).

Kuchinoerabu-jima (Ryukyu Islands): No new eruptions seem to have occurred at the volcano since the relatively violent eruption on 4 Aug.

JMA reported continuing tremor and earthquake activity as well as a steam-/gas-plume rising 50-600 m above the crater rim.

Dukono (Halmahera): Ash emissions were observed on satellite imagery this morning. An ash plume at estimated 8,000 ft (2.4 km) altitude extended 20 nautical miles to the north of the volcano.