this website has been retired, the archived datasets are still available from the DATA and WEBMAPS pages, linked above


In response to the Tohoku Earthquake and Tsunami Mar 11th 2011, the Harvard Center for Geographic Analysis has launched this web portal.

If you have data to share, or need an upload point for inter-agency data exchange, please contact us:

The main point of contact of the Japanese Government for Earthquakes, is here.

The USGS Earthquake Hazards Program Summary of the Honshu event is here.

An excellent background series on the regional geography and impact of the event has been assembled by the Tohoku Geographical Association here.

General Overview of the 2011 Sendai 8.9 earthquake on Wikipedia, and a history of earthquakes in Japan.

Energy propagation pattern of the 11 Mar 2011 tsunami. source: NOAA

All copyrights are retained by the original producers of the data, and downloads from this portal are for academic, non-commercial, relief and reconstruction efforts only.

Click On These Logos for Major Data Sources:

Portal Sponsors and Collaborators: