Kusatsu-Shiraneyama Increase in volcanic earthquakes Beware of volcanic blocks associated with eruption JMA

Kusatsu-Shiraneyama Increase in volcanic earthquakes Beware of volcanic blocks associated with eruption JMA April 19 19:41

Volcanic earthquakes have increased from the evening of the 30th on "Shirane-san" of Kusatsu-Shirane in Gunma prefecture. The Japan Meteorological Agency has called for caution against large volcanic blocks associated with the eruption within a range of approximately 1 km from the Yugama crater, as it is thought that volcanic activity is increasing.

According to the Japan Meteorological Agency, Kusatsu-Shirane in Gunma Prefecture has an increasing number of volcanic earthquakes with a hypocenter near Yukama of Mt. Shirane, which was observed 21 times between 4:00 pm and 6:00 pm on the 30th.

Around the beginning of September last year, a change in the ground indicating the expansion of the shallow part of the crater was observed around Yugama, and at the end of last month, volcanic tremors, which may indicate the movement of underground hot water and volcanic gas, were also observed. It has been.

The Japan Meteorological Agency called for warning that large volcanic rocks associated with the eruption should be kept within a range of about 1 km from the Yugama crater, assuming that volcanic activity is considered to be high I am.