International Disaster and Emergency Monitoring Center

Preliminary earthquake data and analysis


Earthquake Report
Base data
Event ID 1774306
Event time 2026-10-18 04:05:46 (UTC)
Local time 2026-10-18 12:05:46 - [It was afternoon in the affected area.]
Last update 2026-10-18 04:08:59 (UTC)
Magnitude 2.8
Depth 28.7 km
Class Micro
Hypocenter Shallow depth
Mercalli scale 1
Possible effects People do not feel any Earth movement.
Data status automatic
Data provider USGS

Location
Continent North-America
Country USA
Administration area Alaska
Nearest settlement Larsen Bay
Distance 21 km
Course N
Surface type underwater quake
Tsunami region North Pacific
Water surface name Gulf of Alaska



Risk Analisys
Nearest nuclear power plants
There is no known nuclear power plant nearby.
Nearest marine ports
Uyak (10,79 km), Uyak (10,79 km), Larsen Bay (21,91 km), Larsen Bay (21,91 km), Karluk (32,99 km)
Nearest airports
Larsen Bay Airport (21,72 km), Larsen Bay Airport (21,72 km), Zachar Bay Seaplane Base (24,48 km), Zachar Bay Seaplane Base (24,48 km), West Point Village Seaplane Base (26,58 km)
Nearest volcanoes
There is no known volcanoes nearby.
Quick Analysis
Due to the small magnitude of the earthquake and the moderate depth of the hypocenter, minimal damage is conceivable.According to the epicenter of the quake, this is an underwater quake.