An Estimation of Displacement Distribution around the Earthquake Fault using Two Times of Airborne LiDAR Data

-An Example of 2011 Fukushima Hamadori Earthquake-

Abstract

 We applied a new method for estimation of displacement distribution around the earthquake fault occurred by 2011 Fukushima Hamadori Earthquake, using airborne LiDAR data before and after the earthquake. The results obtained by our method almost conform to distribution of net fault displacement shown by field investigations. Furthermore, the results suggest block tilting and land subsidence caused by the earthquake. Our new method can provide information difficult to get ordinary methods of field investigation, and consequently useful for investigation of displacement distribution just after earthquakes.