Volcanic deformation at Kusatsushiranesan detected by ALOS-2 and ALOS-4 data

Released: August 13, 2025, update: August 15, 2025 Japanese version of this page

SAR Interferograms

Fig.1 SAR interferograms ((left) 1st: 2025-05-24, 2nd: 2025-08-08　(right) 1st: 2025-08-02, 2nd: 2025-08-08)

　　　Fig.1 SAR interferograms ((left) 1st: 2025-05-24, 2nd: 2025-08-08　(right) 1st: 2025-08-02, 2nd: 2025-08-08)


Fig.2 SAR interferograms (1st: 2025-06-18, 2nd: 2025-08-13)

　　　Fig.2 SAR interferograms (1st: 2025-06-18, 2nd: 2025-08-13))

InSAR time series analysis

Fig.3 InSAR time series analysis results from ALOS-2 and ALOS-4 data from April 17, 2015 to August 8, 2025

　　　Fig.3 InSAR time series analysis results from ALOS-2 and ALOS-4 data from April 17, 2015 to August 8, 2025


Fig.4 InSAR time series analysis results from ALOS-2 and ALOS-4 data from October 28, 2014 to August 13, 2025

　　　Fig.4 InSAR time series analysis results from ALOS-2 and ALOS-4 data from October 28, 2014 to August 13, 2025


Analysis by GSI from ALOS-2 and ALOS-4 data of JAXA.
These data were obtained based on the agreement with JAXA and through the Satellite Data Analysis Group for Volcanic Activity.
The numerical weather model was provided from JMA based on the agreement.

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