Series of Moderate Quakes Hit Pacific Rim as M5.8 Strikes Off Kamchatka

Overview

• The latest event was a magnitude 5.8 off eastern Kamchatka on Jan. 17, felt in Petropavlovsk‑Kamchatsky up to four points, with the focus about 39 km deep and roughly 190 km from the city.
• Kamchatka seismologists say the region remains in an elevated aftershock phase following the July 30, 2025 magnitude 8.8 earthquake, with a regional emergency regime in effect.
• A magnitude 6.0 earthquake was recorded offshore Oregon on Jan. 16 at a depth of about 7.1 km, located roughly 420 km from Salem, and no tsunami warning was issued.
• USGS reported a magnitude 5.9 near Alaska’s Attu Station on Jan. 15 at a depth of about 41 km, with no reports of casualties or damage.
• Other events included a magnitude 5.7 near Hokkaido and the southern Kurils with no tsunami threat, plus Mexico’s National Seismological Service logged a magnitude 5.6 south of Chetumal and a magnitude 5.3 near San Marcos.