Historical Tsunamis

historical tsunami key This map shows historical tsunami data from 1610 BC to the present. Colors indicate the validity of the tsunami occurrence. Dark purple = definite, pink = probable, light pink = questionable. Pink lines are tectonic plate boundaries. The date in the event popups are given in Universal Coordinated Time (also known as Greenwich Mean Time). Maximum water height is in meters. The local date may differ by one day. View map in full screen.

Data Sources

Tsunami layer data modifed from NGDC/WDS Global Historical Tsunami Database, 2100 BC to present. Location is the approximate geographic source location. Events prior to 1900 were not instrumentally located; therefore, the location given is based on the latitude and longitude of the city where the maximum effects occurred.

Tectonic plate boundaries layer from EsriTrainingSvc; modified from source data by U.S. Geological Survey.



DOGAMI reserves the right to update data without notification as new information becomes available. This product is for informational purposes and may not have been prepared for or be suitable for legal, engineering, surveying, or site specific purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information.