M 4.7 in United States from 11 Aug 2017 06:18 UTC to 06:18

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This is a preliminary assessment. The final GDACS Alert Level has been/will be published using more detailed information.

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: 79 Km
Lat/Lon: 60.049 , -152.445
Event Date: 11 Aug 2017 06:18 UTC
10 Aug 2017 22:18 Local
Exposed Population:
About 3000 people within 100km
Source: NTWC     at00ouic6i
Inserted at: 11 Aug 2017 06:21 UTC
INFORM Coping capacity of the alert score
2.2 (United States)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NTWC     n.a n.a
at00ouic6i Scaled population (vector) 0  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1177032 n.a 11 Aug 2017 06:18 4.7M, 79km N/A 4 thousand (in 100km) 00:02 NTWC    
1177034 n.a 11 Aug 2017 06:18 4.9M, 94km N/A 3 thousand (in 100km) 00:03 ALASKA EC
1177035 n.a 11 Aug 2017 06:18 5M, 102km N/A 4 thousand (in 100km) 00:04 ALASKA EC
1177037 n.a 11 Aug 2017 06:18 5M, 99km N/A 2 thousand (in 100km) 00:10 ALASKA EC
1177039 n.a 11 Aug 2017 06:18 5M, 95.2km N/A 4 thousand (in 100km) 00:16 ALASKA EC
1177040 n.a 11 Aug 2017 06:18 5M, 91.8km N/A 2 thousand (in 100km) 00:18 ALASKA EC
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 , State of Alaska (population 572,432) . The nearest places are Happy Valley, Ninilchik, Anchor Point, Nikolaevsk, Klutchevya, Iniskin, and Drift River.

Radius Population
100 km 3600 people
75 km <1000 people
50 km no people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Alaska United States 570000 people

Affected populated places

Name Region Province Country City class Population Distance
Happy Valley Alaska United States Village <1000 people 41 km
Ninilchik Alaska United States Village <1000 people 43 km
Anchor Point Alaska United States Village 1800 people 45 km
Nikolaevsk Alaska United States Village <1000 people 54 km
Klutchevya Alaska United States Village - 54 km
Iniskin Alaska United States Village - 56 km
Drift River Alaska United States Village - 62 km

see full list

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Camp Point 2 0 43 km
Anchor River Airpark 37 0 43 km
Ninilchik NIN 84 0 48 km
Drift River DRF 9 0 62 km
English Bay KEB 8 0 83 km

Ports

Name LOCODE Country Distance
Snug Harbor Wake Island 9 km
Ninilchik Wake Island 42 km
Drift River Wake Island 60 km

More information

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