M 6.6 in United States on 30 Nov 2018 17:29 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

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

Earthquake Magnitude: 6.6M
Depth: 35.5 Km
Event Date: 30 Nov 2018 17:29 UTC
30 Nov 2018 08:29 Local
Exposed Population: 200000 people in MMI
390000 people within 100km
Source: ALASKA EC ak20419010
Inserted at: 30 Nov 2018 17:40 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
ALASKA EC 1 0 1
ak20419010 Scaled population (vector) 4.03 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.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1239013 0.9 30 Nov 2018 17:29 6.7M, 43.9km N/A 390 thousand (in 100km) 0m (at 00:00) 00:04 ALASKA EC
1239017 0.9 30 Nov 2018 17:29 6.6M, 42.8km N/A 390 thousand (in 100km) 0m (at 00:00) 00:10 ALASKA EC
1239019 1 30 Nov 2018 17:29 6.6M, 35.5km 7.05 210 thousand (in MMI>=VII) 0m (at 00:00) 00:11 ALASKA EC
1239027 1 30 Nov 2018 17:29 6.7M, 31.1km 7.05 210 thousand (in MMI>=VII) 0.1m (at 00:00) 00:14 ALASKA EC
1239028 0.8 30 Nov 2018 17:29 6.6M, 39.1km 7.59 40 thousand (in MMI>=VII) 0m (at 00:00) 00:15 ALASKA EC
1239035 0.9 30 Nov 2018 17:29 7M, 40.9km 7.59 110 thousand (in MMI>=VII) 0.1m (at 00:08) 00:27 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.

Tsunami affected locations

Alert Date (UTC) Name Country Wave height (m)

See full locations list (RSS)


Initial conditions

Title: ""12km N of Anchorage""

Fault parameters

  • Latitude: 61.332
  • Longitude: -149.933
  • Length: 31 km
  • Width: 8 km
  • Magnitude: 6.6 M

Okada parameters:

  • Slip: .9 m
  • Strike: 218 (geogr angle: north=0, south=180)
  • Dip: 15 degree
  • Rake: 90 degree
  • Depth: 36 km

Calculation parameters

  • Calculation space (lon/lat): -151.433, 59.832, -148.433, 62.832
  • Instead of Step -> use Cell size:.25 minutes

Sea Level

More information

  • Timeline:
    Tsunami calculations performed to this case, click here

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