Overview

• USGS measured a magnitude 7.8 earthquake about 128 km east of Petropavlovsk‑Kamchatsky at a depth of roughly 10 km, followed minutes later by magnitude 5.8 and 5.4 aftershocks.
• U.S. officials issued a tsunami advisory for the western Aleutians in Alaska that was later canceled, with no alerts for the U.S. West Coast and Hawaii assessed as facing no destructive threat.
• Russia’s Kamchatka authorities issued a local tsunami warning, forecast waves of about 0.5 to 1.5 meters in some areas, and began rapid inspections as emergency services stood by.
• The Pacific Tsunami Warning Center initially said hazardous waves were possible within about 1,000 km of the epicenter, then reported the threat had passed as sea‑level data were reviewed.
• Officials reported no immediate casualties or widespread damage, though residents felt strong shaking that was captured in videos of rattling fixtures and rocking vehicles.