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Tsunamis

Tsunami Warnings Downgraded After Magnitude-8.8 Quake Off Kamchatka

Warnings have been eased across the Pacific after an 8.8 magnitude quake off Kamchatka; agencies continue monitoring seismic activity and sea levels.

Pacific Tsunami Warnings Canceled After 8.8-Scale Kamchatka Quake

Pacific Tsunami Alerts Downgraded After 8.8-Magnitude Kamchatka Earthquake

Greenland Fjord Mega-Tsunamis Verified as Source of Nine-Day Global Seismic Shaking