砂子原カルデラ

The Sunagohara Caldera spans across the mountainous region with a circular depression measuring several kilometers in diameter at coordinates 37.46°N 139.68°E.

The formation occurred through a series of volcanic eruptions, resulting in the collapse of the mountain's summit into an empty magma chamber beneath the surface.

Local residents maintain detailed records of volcanic activity through generations, contributing to scientific understanding of geological patterns in the region.

Geological research stations monitor seismic activity and magma movements within the caldera, providing early warning signals for potential volcanic events.

The caldera contains distinct layers of volcanic deposits that reveal multiple eruption cycles, helping scientists determine the frequency of past volcanic activities.

GPS coordinates: 37.45722,139.68389

Latest update: March 7, 2025 23:06