Research Flash
Study on ground subsidence of volcanic soil caused by the Kumamoto Earthquake
2019 Volume 71 Issue 6 Pages 1071-1074
Details
2019 Volume 71 Issue 6 Pages 1071-1074
The 2016 Kumamoto earthquake caused significant geotechnical damages in the affected area. The earthquake also caused ground subsidence of 30 to 50 cm in the floodplain area along Kiyama-river. The floodplain area is located to the west of Mt. Aso and has thick volcanic soil layers, including a pumice soil. The present study examines a possibility that the pumice layer has been responsible to cause the ground subsidence in the floodplain area based on the field investigation, laboratory tests and earthquake response analysis.
