Damage Proxy Map and Re-zoning MapThe DPM shows areas of tsunami inundation in Sendai, Japan.  Tohoku-Oki earthquake displacements measured by GPSA color map rendering of horizontal  ground deformation rendered as a GIS product for Tohoku-Oki, Japan earthquake

[1] The Damage Proxy Map (DPM) indicates centimeter scale change due to subsidence, inundation, or structure collapse allowing early assessment of the scale of damage. [2] Re-zoning map indicating where repair and rebuilding will be allowed.  This map is the product of many man-hours of effort to assess structures and the land that they were built on.

The DPM shows areas of tsunami inundation in Sendai, Japan.

Over 1200 permanent, geodetic GPS stations in the Japanese GEONET network recorded the motion of the Tohoku-Oki earthquake with 1-second resolution. This movie shows the displacements measured at each station. On the left, horizontal displacements are represented in magnitude by color, and in direction by an arrow at each GPS station. On the right, vertical displacement is represented by color.  The GEONET GPS data were provided to Caltech by GSI of Japan, and were analyzed at JPL using the GIPSY-OASIS software and JPL precise orbits.

GPS coseismic displacements (colormap on land) and estimated area of fault slip (yellow contour off shore). The red star shows the epicentral location of the earthquake identified by seismic data. The question mark identifies the region where a subsequent large earthquake could occur.