Volcano Discovery Thursday Oct 24, 2013 12:03 PM |
Powerful eruptionof Sakurajima on 21 Oct, producing a plume that reached 18,000 ft
SO2 plume from Langila on 22 Oct (NOAA)
Zhupanovsky (Kamchatka, Russia): A new explosive eruption started yesterday night (23 Oct). An ash plume was detected drifting at an estimated 16,000 ft (5 km) altitude and drifting ESE. At least 1 mm of ash have been deposited in the Nalychevo valley, a natural park between Zhupanovsky and Avachinsky volcanoes.
Zhupanovsky volcano lies about 70 km northeast of the capital of Kamchatka, Petropavlovsk-Kamchatsky, and had its last eruption in 1959.
It is a complex volcano composed of several overlapping cones aligned on a roughly east-west oriented axis. The new eruption comes from the same vent that has been also the site of all known historical eruptions, located west of the highest point of the volcanic massif.
Sakurajima (Kyushu, Japan): A phase of strong explosions during 20-21 Oct culminated with an eruption on 21 Oct that produced an ash plume rising to 18,000 ft (5.4 km) altitude (VAAC Tokyo).
Since then, the volcano has calmed down and had only smaller explosions.
Langila (New Britain, Papua New Guinea): A thermal hot spot and an SO2 plume are often visible on satellite data, indicating that the volcano is in eruption although the nature of its current activity is not known exactly.
The volcano, one of Papua New Guinea's most active, has often semi-persistent strombolian activity and sometimes lava flows.
