Tsunami Map, Krakatoa Eruption, 1883

1880s 1883 19th century 2 minute gridded global relief data arrival time august 27 august 27th bathymetric bathymetry chart contour dutch east indies earth science earthquake epicenter event famous geologic hazard geology geophysical global historical tsunami database history hydrographic hydrography indian ocean indonesia indonesian krakatau krakatoa map national centers for environmental information national geophysical data center national oceanic and atmospheric administration natural disaster ncei ngdc noaa ocean depth phemomena technology travel time tsunami travel time tsunami waves tsunami ttt volcano