Aso volcano news & activity updates

Aso volcano (central Kyushu, Japan): fluctuating tremor continues

Чт, 6 мая 2021, 09:26
Summit crater of Aso volcano from satellite on 26 April (image: Sentinel 2)
Summit crater of Aso volcano from satellite on 26 April (image: Sentinel 2)
The Japan Meteorological Agency's (JMA) seismic network recorded an increased seismic activity related to periods of fluctuating volcanic tremor during the past few days, a typical sign for the upcoming eruption.
On 2 May at 21:00 local time the volcanic tremor started to rise gradually at moderate levels and continued up to 18:00 local time on 4 May. After this, periods of amplitude tremor started to decrease, but remained at higher levels than previous average levels on 2 May.
Sulfur dioxide (SO2) emissions rose 990 ft (300 m) above the crater and reached to a 200 tonnes/day.
The alert level for the volcano was raised to Level 2.
The public was warned to stay at least 1 km away from the crater.
Source: Japan Meteorological Agency volcano activity update 6 May 2021

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