International Disaster and Emergency Monitoring Center

Preliminary earthquake data and analysis


Earthquake Report
Base data
Event ID 1521978
Event time 2025-12-07 22:17:57 (UTC)
Local time 2025-12-08 07:17:57 - [It was morning in the affected area.]
Last update 2025-12-07 22:28:19 (UTC)
Magnitude 4.7
Depth 70.2747 km
Class Light
Hypocenter Shallow depth
Mercalli scale 4
Possible effects Most people indoors feel movement. Hanging objects swing. Dishes, windows, and doors rattle. The earthquake feels like a heavy truck hitting the walls. A few people outdoors may feel movement. Parked cars rock.
Data status reviewed
Data provider USGS

Location
Continent North-America
Country USA
Administration area Alaska
Nearest settlement Sand Point
Distance 89 km
Course SSE
Surface type underwater quake
Tsunami region North Pacific
Water surface name North Pacific Ocean



Risk Analisys
Nearest nuclear power plants
There is no known nuclear power plant nearby.
Nearest marine ports
Unga (73,08 km), Baralof Bay (79,03 km), Sand Point (89,73 km), Belkofski (133,08 km), Ivanof Bay (145,93 km)
Nearest airports
Squaw Harbor Seaplane Base (79,38 km), Sand Point Airport (87,59 km), Herendeen Bay Airport (146,31 km), King Cove Airport (148,11 km)
Nearest volcanoes
Dana volcano (137,95 km), Pavlof volcano (145,99 km), Stepovak Bay 1 volcano (146,40 km), Pavlof Sister volcano (147,04 km), Emmons Lake volcano (149,79 km)
Quick Analysis
According to the epicenter of the quake, this is an underwater quake.