M4.3 Earthquake Near 24 km SE of Kasilof, Alaska Carries Provider Tsunami Flag

USGS Week reports M4.3 near 24 km SE of Kasilof, Alaska, with a 70.4 km catalog depth and 106 felt reports.

Published 2026-11-01T22:42:56.715Z

The event began at Sun, 01 Nov 2026 11:30:21 GMT. USGS Week reports magnitude 4.3, 70.4 km catalog depth, and coordinates 60.198, -150.932.

The catalog location label is 24 km SE of Kasilof, Alaska; no separate nearest-city field was supplied with this solution. By catalog depth, this is an intermediate-depth event. The magnitude-derived energy estimate is 1.78e+11 joules, or about 42.5 tons of TNT equivalent; that calculation describes source energy, not local damage.

106 public felt reports are attached to the current catalog entry. Other attached observation fields include catalog significance score 326. No official casualty or damage statement is attached to the normalized event evidence.

The USGS Week catalog currently marks the solution as reviewed. No station-count, phase-count, residual, gap, or uncertainty fields were supplied in the normalized record. No alternate network solution is attached to this record.

The provider record carries a tsunami-related flag. That field is not itself a warning; readers should check the issuing tsunami warning center and local officials. Magnitude, depth, and location can change as monitoring networks add observations and review the solution.