M 6.6 in United States on 15 Aug 2018 21:56 UTC

Hazard models

EQ parameters
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: 6.6M
Depth: 20 Km
Lat/Lon: 51.435 , -178.0543
Event Date: 15 Aug 2018 21:56 UTC
15 Aug 2018 12:56 Local
Exposed Population: No people within 100km
Source: NEIC us1000ga0z
Inserted at: 15 Aug 2018 23:54 UTC
INFORM Coping capacity of the alert score
2.2 (United States)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0 0 0
us1000ga0z Scaled population (vector) 0 Max wave alert 0m  
  C1 shakemap -0.59 Max wave realtime 0m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  INFORM_normalised 0.65      
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1224211 0 15 Aug 2018 21:56 6.5M, 35km N/A No people affected (in 100km) 0m (at 00:00) 00:05 NTWC    
1224213 0 15 Aug 2018 21:56 6.5M, 10km N/A No people affected (in 100km) 0m (at 00:00) 00:08 GEOFON
1224214 0 15 Aug 2018 21:56 6.5M, 35km N/A No people affected (in 100km) 0m (at 00:00) 00:10 PTWC
1224217 0 15 Aug 2018 21:56 6.6M, 31.59km 5.97 N/A (in MMI>=VII) 0m (at 00:00) 00:18 NEIC
1224231 0 15 Aug 2018 21:56 6.6M, 20km 6.24 N/A (in MMI>=VII) 0m (at 00:00) 01:57 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 , State of Alaska (population 572,432) .

Radius Population
100 km no people
75 km no 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

Critical infrastructure

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

Ports

Name LOCODE Country Distance
Tanaga Island Wake Island 54 km

More information

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