Event summary
Base data
UniqID PAAQ-1-swgbkw
Data provider tsunami.gov (Pacific East)
Issue Time 2025-05-18 10:00:05 [UTC]
Expire date 2025-05-18 11:00:05 [UTC]
Active data No
Location Nearest settlement
Continet North-America
Country United States
Administration area Alaska
Settlement Chiniak
Distance and Direction 190 km of ENE
Information about the triggering event
Magnitude M4.6
Depth 22 km
Underwater Yes
Water depth -116 meters
Sea region North Pacific
Sea name Gulf of Alaska
Known information about the tsunami
Event description
This is a Tsunami Information Statement. - Event details: Preliminary magnitude 4.6 (Ml) earthquake / Lat: 58.130, Lon: -149.228 at 2025-05-18T09:55:44 UTC An information statement indicates that an earthquake has occurred, but does not pose a tsunami threat, or that a tsunami warning, advisory, or watch has been issued for another section of the ocean.
Instruction There is NO tsunami danger from this earthquake. This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.