Science ❯ Geology ❯ Seismology ❯ Earthquake Magnitude

Tsunami Formation

Tsunami Advisory Lifted After 6.7–6.9 Quake Off Northern Japan

A special JMA subsequent‑earthquake advisory remains in effect for the week following Monday’s M7.5 mainshock.

Powerful Offshore Quake Strikes Southern Philippines; Tsunami Threat Lifted

Tsunami Warnings Downgraded After Magnitude-8.8 Quake Off Kamchatka

Tsunami Watches Lifted After Magnitude 7.4 Quake Sequence Off Kamchatka Peninsula

Tsunami Advisory Canceled After 7.3 Magnitude Quake Off Alaska Peninsula