ESA ENVISAT: Terrain Displacement from Japan earthquake from space

A map of the terrain displacement based on Envisat Advanced Synthetic Aperture Radar of the earthquakes that struck Japan beginning on 11 March 2011.

The map is derived from an interferogram generated by INGV using data acquired on 19 February and 21 March 2011 on track 347.

The map shows a large portion of the surface displacement field. The maximum displacement along the Line Of Sight (of the satellite) reaches about 2.5 m relative to a reference point within the entire frame strip located nearby the southern boundary.

Credits: Based on ESA data -The Istituto Nazionale di Geofisica e Vulcanologia (S. Stamondo, M. Chini and C. Bignami)