Tsunami Map, Kamchatka Earthquake, 1923

1920s 1923 2 minute gridded global relief data 20th century arrival time bathymetric bathymetry chart contour earth science earthquake epicenter earthquake event famous february 3 geologic hazard geology geophysical global historical tsunami database history hydrographic hydrography kamchatka map national centers for environmental information national geophysical data center national oceanic and atmospheric administration natural disaster ncei ngdc noaa ocean depth pacific ocean pacific phemomena russia russian seismic seismological seismology technology travel time tsunami travel time tsunami waves tsunami ttt