Last Updated : July 26, 2019

The 2019 California Earthquake: Crustal deformation detected by ALOS-2 data

Crustal Deformation Observed by Synthetic Aperture Radar (SAR)

Released: Nov. 4, 2020, updated: Nov. 4, 2020,Japanese version of this page

Summary

An earthquake (M 7.0, USGS) occurred in the Aegean sea on October 30, 2020 (UTC). To measure the crustal deformation caused by this earthquake, we applied interferometric analysis using ALOS-2/PALSAR-2 data. The analysis result shows that the crustal deformation occurred in the part of the Samos island.

SAR Interferograms


Fig.1 SAR interferogram [PNG: 0.6MB]
Fig.
#
Date Time
(UTC)
Flight
Dir.
Beam
Dir.
Obs.
Mode*1
Incidence Angle
(around epicenter)
Bperp
1 2020/03/08
2020/11/01
10:14 Des. Right F-F 41° -470m

*1 F: Stripmap (Fine)
(cf. ALOS-2 Project / PALSAR-2 (JAXA))

Analysis by GSI from ALOS-2data of JAXA.
These results were obtained through the activity of the SAR analysis working group of the Coordinating Committee for Earthquake Prediction.

The 2019 California Earthquake

Date-Time October 30, 2020, 11:51(UTC)
Hypocenter
Location
37.918°N, 26.790°E, Depth:21.0 km
(USGS, as of Octber 30, 2020)
Magnitude M=7.0(USGS, as of October 30, 2020)

Satellite

ALOS-2 (Advanced Land Observing Satellite 2) launched by Japan Aerospace Exploration Agency on May 24, 2014

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Contact

MUNEKANE Hiroshi : Head of Division
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