USGS records a magnitude 4.5 earthquake near 111 km ESE of Atka, Alaska. Event time: 2026-10-31T18:51:02.721Z. USGS may revise preliminary measurements.
- Reported magnitude: 4.5
- Location reported by USGS: 111 km ESE of Atka, Alaska
- Recorded event time (UTC): 2026-10-31 18:51:02.721Z
- Reported depth: 44.9 kilometers