Aso Volcano Tremor Amplitude Increased Attention to Volcanic Activity October 21 21:31
At Mt. Aso in Kumamoto Prefecture, the amplitude of volcanic tremor has been large since the evening of 21st. The current eruption alert level is 2, but the Fukuoka Regional Meteorological Observatory has announced temporary commentary information and may call attention to volcanic activity, as it may be raised to level 3 if the activity further increases. The
According to the Fukuoka Region Meteorological Observatory, Mt. Aso has been erupting intermittently at the Nakadake No. 1 crater, and the amplitude of volcanic tremors, which is said to indicate the movement of underground hot water and magma from around 4 pm on the 21st. Is getting bigger.
The number of volcanic earthquakes has also increased, and the field survey conducted on the 15th of this month shows that the amount of volcanic gas released per day is very high at 4500 tons, indicating that volcanic activity has increased.
Aso volcano eruption warning level is currently level 2, but Fukuoka District Meteorological Observatory will announce temporary commentary information at 8:00 pm as volcano activity may be increased to level 3 indicating entry control Did.
On top of that, we continue to call out to be cautious of large cinders and pyroclastic flows in the range of about 1 km from the crater.