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NOAA NCTR research product
Not an official forecast

The Hokkaido tsunami was generated by a Mw 8.3 earthquake (41.860°N 143.870°E), 2003-09-25 19:50:08 UTC (according to the USGS).

Field Survey Data

Sea Level Data

Seismic Data

Model Simulations

Bathymetry and Topography

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