M 5.3 in United States on 30 May 2017 02:18 UTC

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: 5.3M
Depth: 78.4 Km
Lat/Lon: 60.8382 , -151.8277
Event Date: 30 May 2017 02:18 UTC
29 May 2017 18:18 Local
Exposed Population:
About 33000 people within 100km
Source: ALASKA EC ak16139649
Inserted at: 30 May 2017 02:36 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
ALASKA EC n.a n.a
ak16139649 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
1169399 n.a 30 May 2017 02:18 5M, 96km N/A 30 thousand (in 100km) 00:02 NTWC    
1169400 n.a 30 May 2017 02:18 5.1M, 81.9km N/A 30 thousand (in 100km) 00:05 ALASKA EC
1169401 n.a 30 May 2017 02:18 5.4M, 77.4km N/A 40 thousand (in 100km) 00:08 ALASKA EC
1169404 n.a 30 May 2017 02:18 5.3M, 78.4km N/A 30 thousand (in 100km) 00:17 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 Kustatan, Nikiski, Nkishka No 2, Nikisnka, Shirleyville, Salamatof, Drift River, Old Tyonek, Kenai, Tyonek, and Clam Gulch.

Radius Population
100 km 35000 people
75 km 16000 people
50 km 1100 people
20 km <1000 people
10 km <1000 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
Kustatan Alaska United States Village - 12 km
Nikiski Alaska United States Village 4300 people 23 km
Nkishka No 2 Alaska United States Village - 25 km
Nikisnka Alaska United States Village - 26 km
Shirleyville Alaska United States Village - 29 km
Salamatof Alaska United States Village <1000 people 32 km
Drift River Alaska United States Village - 33 km
Old Tyonek Alaska United States Village - 35 km
Kenai Alaska United States Village 6900 people 40 km
Tyonek Alaska United States Village <1000 people 43 km
Ladd Alaska United States Village - 46 km
Ridgeway Alaska United States Village 1900 people 49 km
Kalifornsky Alaska United States Village 5800 people 52 km
Soldocna Alaska United States Village - 52 km
Kalifonsky Alaska United States Village <1000 people 53 km
Soldotna Alaska United States Village 3800 people 53 km
Cohoe Alaska United States Village 1200 people 56 km
Beluga Alaska United States Village <1000 people 57 km
Kasilof Village Alaska United States Village - 59 km
Kasilof Alaska United States Village <1000 people 61 km
Clam Gulch Alaska United States Village <1000 people 69 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
Trading Bay Production 61 0 2 km
Offshore Ststems-Kenai 46 0 26 km
Nikolai Creek 9 0 28 km
Carty's Airstrip 46 0 29 km
Arness Lake 38 0 32 km
Drift River DRF 9 0 33 km
Kenai Municipal ENA 28 Civ. Paved Yes 7500 39 km
Tyonek TYE 34 0 45 km
Doyle Estates 15 0 45 km
Gaede 35 0 50 km
Mackeys Lakes 53 0 52 km
Soldotna SXQ 33 Civ. Paved Yes 5000 55 km
Beluga BVU 40 Priv. Unpaved Yes 5000 55 km
Dahler Homestead 91 0 57 km
Kasilof 38 0 59 km
Winter's Strip 34 0 61 km
Ninilchik NIN 84 0 89 km

Ports

Name LOCODE Country Distance
West Foreland USWFO Wake Island 12 km
Nikiski USNKI Wake Island 25 km
Drift River Wake Island 37 km
Kenai Wake Island 41 km
Tyonek USTYE Wake Island 44 km
Ninilchik Wake Island 86 km

More information

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