Monitoring of Sakurajima Volcano, Japan, with Sar Data: From Small Displacement Measurements to Modeling and Forecast

摘要

The intense activity of Sakurajima volcano is defined through interferometric analysis of SAR data, ALOS Palsar-2 and Sentinel-1, to obtain the caldera displacement over the observed period, between October 2014 and March 2018. Displacement evolution is derived to investigate its correlation with eruptions and diking. The time series, calibrated through global navigation satellite System (GNSS) measurements, are used to identify the most dramatic events affecting Sakurajima area since 2015. Moreover, modeling of a rapid intrusion occurred in August 2015 is presented.