M 4.7 in United States on 26 Jul 2023 15:29 UTC

Hazard models

Rapid Impact
Shakemap
Tsunami

Event summary

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

Earthquake Magnitude: 4.7M
Depth: 40.221 Km
Lat/Lon: 54.6515 , -160.9861
Event Date: 26 Jul 2023 15:29 UTC
26 Jul 2023 04:29 Local
Exposed Population: 3 thousand in MMI&>=II
Source: NEIC us6000kvnt
Inserted at: 26 Jul 2023 15:48 UTC
INFORM Coping capacity of the alert score: 1.1 (United States)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000kvnt Scaled population (raster) 0  
  C1 shakemap 0  
  C2 shakemap 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1517283 0 26 Jul 2023 15:29 4.5M, 25.8km 2.48 N/A (in MMI>=VII) 00:15 ALASKA EC
1517286 0 26 Jul 2023 15:29 4.7M, 40.221km 2.44 N/A (in MMI>=VII) 00:19 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
The episode that has the last updated information.
* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened in United States ,of Alaska (population 1,298) . The alertlevel for this event is GREEN

Intensity Population
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1517283 -161.076/54.629 4.7 9.4 2.603 26 Jul 2023 15:42 00:12 (new episode)
2 0 1517286 -160.957/54.578 4.5 25.8 2.439 26 Jul 2023 15:48 00:18 (new episode)

Affected Provinces

Intensity Region Province Country Population
Alaska United States 2000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Unga Alaska United States Village - 67 km
Squaw Harbor Alaska United States Village - 72 km
Belkofski Alaska United States Village - 83 km
Village Alaska United States Village - 98 km
Pauloff Harbor Alaska United States Village - 114 km
Sanak Alaska United States Village - 119 km

see full list


Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Squaw Harbor unknown 0 70 km
Sand Point SDP 6 Civ. Paved Yes 4000 80 km
King Cove KVC 47 0 97 km
Pauloff Harbor KPH unknown 0 113 km
Cold Bay CDB 30 Civ. Paved Yes 10400 127 km
False Pass KFP 6 0 157 km

Ports

Intensity Name LOCODE Country Distance
Unga Wake Island 67 km
Baralof Bay Wake Island 71 km
Sand Point Wake Island 81 km
Belkofski Wake Island 82 km
King Cove Wake Island 96 km
Sanak Island Wake Island 120 km
Cold Bay Wake Island 126 km

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.