Overview

• USGS measured magnitude 7.4 after an initial 7.5 estimate, locating the epicenter about 111 km east of Petropavlovsk-Kamchatsky at a depth of 39.5 km.
• PTWC initially warned of hazardous waves within roughly 300 km of the epicenter before canceling the alert; Japan expected only slight sea-level changes and British Columbia reported no threat.
• GFZ provided a lower preliminary magnitude of 7.1 and a shallower depth near 10 km, highlighting early variance among seismic agencies.
• Kamchatka governor Vladimir Solodov declared a tsunami threat locally, urged residents to avoid beaches, and said inspections were underway.
• Videos and local reports showed strong shaking and some visible damage while authorities continued assessments with no confirmed casualties.