Japan’s
Sakurajima volcano shaken by large explosive eruption
22
July, 2013
July
22, 2013 – JAPAN – A
strong vulcanian explosion occurred last night at 11:02 GMT (20:02
local time), following several hours of near complete calm at the
volcano.
A
loud cannon-shot bang accompanied the explosion, which generated a
large mushroom cloud that reached 12,000 ft (3.7 km) altitude and
engulfed the NE half of the Sakurajima peninsula and was followed by
several smaller ones within about half an hour.
The
volcano and much of the surrounding areas remained under the ash
plume for several hours until it started to clear up again. In the
hours after the explosion, the Showa crater continued to emit ash
plumes in often near-continuous pulses, sometimes reaching several
100 m height, but with no visible incandescence or audible sounds.
Large
explosions at Ecuador volcano:
An
increase of activity occurred yesterday. IGPEN recorded 3 strong
pulses of volcanic tremor since midnight 20-21 July (local time),
which were accompanied by strombolian activity and strong explosions
that produced loud roars, heavy gunfire sounds, and vibrations that
rattled floors, windows and doors of houses in areas nearby.
Some
were heard even in the Tungurahua Volcano Observatory (OVT), located
14 km north of the volcano.
The
largest explosion yesterday at 14h18 (local time) generated an
eruption column of 5 km height moving east. Although so far there
have been no new pyroclastic flows, this could likely happen in the
near future.
Ash
fall occurred in the area of Manzano, Choglontus, Tisaleo,
Cevallos and Mapayacu. In between the explosions, constant
strombolian activity with the ejection of incandescent bombs, some of
which rolled down the slopes could be seen at night.
The
explosions caused considerable damage to some of the monitoring
instruments (solar panels, cameras etc.).
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