M 7.3 in United States on 16 Jul 2025 20:37 UTC

Event summary

This earthquake can have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID EQ 1490429
Earthquake Magnitude: 7.3M
Depth: 20.1 Km
Lat/Lon: 54.5489 , -160.4717
Event Date: 16 Jul 2025 20:37 UTC
16 Jul 2025 09:37 Local
Exposed Population: 1 thousand in MMI VI
Inserted at: 16 Jul 2025 20:52 UTC
INFORM Coping capacity:
1.1 (United States)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0 0.2 0.2
us7000qd1y Scaled population (raster) 0 Max wave alert 0.22m  
  C1 shakemap -0.59 Max wave realtime 0.22m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  INFORM_normalised 0.65      
Maximum expected impact using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
USA - Earthquakes (ECHO 22 Jul 2025)Thu, 17 Jul 2025 10:39

  • An earthquake of magnitude 7.3 M at a depth of 20 km occurred offshore near the eastern Aleutian Islands in Alaska (USA) on 16 July at 20.37 UTC (11:37 local time, Alaska Time Zone). The epicentre was located in the sea, approximately 60 km south of Unga Island. The earthquake was followed by 35 aftershocks, with magnitudes up to 5.7 M, across the affected area.
  • According to the US Geological Survey (USGS) Prompt Assessment of Global Earthquakes for Response (PAGER) estimates, up to 1,000 people were exposed to strong shaking, and 2,000 people to moderate shaking.
  • A minor tsunami was recorded in Sand Point City, Aleutians East Borough, and some areas may continue to experience small sea-level changes, as reported by the US Tsunami Warning System.
  • According to media, there are no reports of any casualties and damage, but residents in coastal communities were advised to evacuate inland to higher ground as a precaution.

 

Detailed event map. European Union, 2025. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

Tsunami Alert After Powerful Quakes Strike Off Coast Of Russia: USGS 7/20/2025 8:07:00 PM.

- AzerNews) Three powerful earthquakes struck off the coast of Russia''s far east on Sunday, triggering a tsunami alert, the US Geological Survey said, Azernews reports, citing Arab News. Earlier 5.0-magnitude and 6.7-magnitude earthquakes
...(more)
Strong earthquakes strike off Russia''s Kamchatka Peninsula 7/20/2025 7:44:00 PM.

Moscow: A series of powerful earthquakes struck off the coast of Russia''s Kamchatka Peninsula on Sunday, with the strongest reaching magnitude 7.6, according to the Kamchatka branch of the Unified Geophysical Service of the Russian Academy
...(more)
Tsunami warnings lifted after 7.5 earthquakes hit Russia’s Pacific coa.. 7/20/2025 7:33:00 PM.

Hawaii, Guam, and American Samoa were initially under tsunami alerts as a result, but, US National Tsunami Warning Centre later lifted the watch for the areas, noting no immediate threat. Russia''s Emergencies Ministry urged the residents
...(more)
Tsunami alert after powerful quakes strike off coast of Russia 7/20/2025 7:28:00 PM.

A series of powerful earthquakes struck off the coast of Russia’s far east on Sunday, triggering a tsunami alert, the US Geological Survey said. Earlier 5.0-magnitude and 6.7-magnitude earthquakes did not initially trigger a tsunami alert,
...(more)

View more news

Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (92), (5), NEIC (6), OCHA (1), INGV (1), WMO (2), USGS (5), INFORM (4), NOAA (1),