Science ❯ Geology ❯ Seismology ❯ Earthquake Magnitude

Tsunami Generation

M7.8 Quake Off Kamchatka Triggers Tsunami Alerts as Alaska Advisories Are Downgraded

As part of the aftershocks from July’s 8.8 megathrust, the shallow jolt put Kamchatka on high alert with no confirmed major damage.

Powerful 7.8 Quake Strikes Off Russia’s Kamchatka, Triggers Tsunami Alerts

M7.4 Quake Off Kamchatka Triggers Tsunami Alerts Later Canceled

Magnitude 7.4 Quake Strikes Russia’s Kamchatka as Local Tsunami Threat Issued

Tsunami Threat Lifted After 7.5 Quake Shakes Drake Passage

Pacific Tsunami Alerts Canceled After 8.8-Magnitude Kamchatka Quake

Tsunami Warnings Downgraded After Magnitude-8.8 Quake Off Kamchatka

Pacific Tsunami Warnings Canceled After 8.8-Scale Kamchatka Quake

Pacific Tsunami Alerts Downgraded After 8.8-Magnitude Kamchatka Earthquake

Magnitude 8.7 Quake Off Kamchatka Triggers Pacific Tsunami Warnings

7.3-Magnitude Earthquake Off Alaska Coast Triggers Brief Tsunami Warnings

Tsunami Advisory Canceled After 7.3 Magnitude Quake Off Alaska Peninsula

Aftershocks Rattle Southern Spain After 5.5-Magnitude Earthquake Off Almería Coast

Chile Downgrades Tsunami Alert After 7.4 Earthquake in Drake Passage

Magnitude 7.5 Earthquake Triggers Tsunami Alerts in Southern Chile

7.6-Magnitude Earthquake Strikes Caribbean, Tsunami Warnings Issued

Powerful 7.6 Magnitude Earthquake Strikes Caribbean Region

6.6 Magnitude Earthquake Strikes Southwestern Japan, Tsunami Advisory Lifted

Vanuatu Earthquake Response: Australian Aid Arrives as Death Toll Rises

Northern California Tsunami Alert Exposes Emergency Response Gaps