M 7 in United States on 30 Nov 2018 17:29 UTC

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: 7.0M
Depth: 40.9 Km
Lat/Lon: 61.34 , -149.9366
Event Date: 30 Nov 2018 17:29 UTC
Exposed Population: 390000 people within 100km
Source: NEIC us1000hyfh
Inserted at: 30 Nov 2018 17:56 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 0.9 0 0.9
us1000hyfh Scaled population (vector) 3.69 Max wave alert 0.11m  
  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.

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
1239013 0.9 30 Nov 2018 17:29 6.7M, 43.9km N/A 390 thousand 0m (at 00:00) 00:04 ALASKA EC
1239017 0.9 30 Nov 2018 17:29 6.6M, 42.8km N/A 390 thousand 0m (at 00:00) 00:10 ALASKA EC
1239019 1 30 Nov 2018 17:29 6.6M, 35.5km 7.05 390 thousand 0m (at 00:00) 00:11 ALASKA EC
1239027 1 30 Nov 2018 17:29 6.7M, 31.1km 7.05 390 thousand 0m (at 00:00) 00:14 ALASKA EC
1239028 0.8 30 Nov 2018 17:29 6.6M, 39.1km 7.59 390 thousand 0m (at 00:00) 00:15 ALASKA EC
1239035 0.9 30 Nov 2018 17:29 7M, 40.9km 7.59 390 thousand 0m (at 02:06) 00:27 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
* 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 572,432) . The alertlevel for this event is GREEN

Intensity Population
55000 people
270000 people
56000 people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 1 1239019 61.318/-149.944 6.7 43.9 7.05 30 Nov 2018 17:43 00:14 (new episode)
2 1 1239027 61.318/-149.944 6.7 43.9 7.05 30 Nov 2018 17:44 00:14 (new episode)
3 1 1239028 61.318/-149.944 6.7 43.9 7.05 30 Nov 2018 17:45 00:15 (new episode)
4 0.8 1239028 61.318/-149.944 6.7 43.9 7.05 30 Nov 2018 17:50 00:21 (upd of #3)
5 0.8 1239035 61.333/-149.933 6.6 39.1 7.26 30 Nov 2018 17:57 00:27 (new episode)
6 1 1239035 61.333/-149.933 6.6 39.1 7.26 30 Nov 2018 18:02 00:33 (upd of #5)
7 0.8 1239035 61.333/-149.933 6.6 39.1 7.26 30 Nov 2018 18:21 00:52 (upd of #6)
8 0.9 1239035 61.333/-149.933 6.6 39.1 7.26 30 Nov 2018 18:40 01:11 (upd of #7)
9 0.9 1239035 61.34/-149.937 6.6 40.9 7.72 30 Nov 2018 23:11 05:41 (upd of #8)

Affected Provinces

Intensity Region Province Country Population
Alaska United States 72000 people
Alaska United States 250000 people
Alaska United States 52000 people
Alaska United States 2000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Bay City Alaska United States Village5 - 3 km
John Fitzgerald Kennedy City Alaska United States Village4 - 9 km
Anchorage Alaska United States Major city 260000 people 15 km
Eagle River Alaska United States Village5 - 20 km
Birchwood Alaska United States Village5 - 25 km
Chugiak Alaska United States Village4 - 25 km
Pittman Alaska United States Village5 - 32 km
Eklutna Alaska United States Village5 - 33 km
Houston Alaska United States Village5 1200 people 34 km
Spenard Alaska United States Village4 - 17 km
Nunaka Valley Alaska United States Village4 - 17 km
Cottonwood Alaska United States Village4 - 27 km
Alexander Alaska United States Village5 - 37 km
Wasilla Alaska United States Village5 5400 people 37 km
Willow Alaska United States Village5 1600 people 41 km
Tanaina Alaska United States Village5 4900 people 42 km
Rainbow Alaska United States Village5 - 41 km
Matanuska Alaska United States Village5 - 44 km
Gateway Alaska United States Village5 2900 people 45 km
Palmer Alaska United States Village5 4500 people 53 km
Kashwitna Alaska United States Village5 - 58 km
Girdwood Alaska United States Village5 - 59 km
Ladd Alaska United States Village5 - 70 km
Caswell Alaska United States Village5 - 72 km
Portage Alaska United States Village5 - 76 km
McDougal Alaska United States Village5 - 80 km
Old Tyonek Alaska United States Village5 - 81 km
Montana Alaska United States Village5 - 82 km
Port Ashton Alaska United States Village5 - 175 km
San Juan Cannery Alaska United States Village4 - 176 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)
Goose Bay 24 0
Sleepers Strip 38 0
Point Mackenzie 22 0
Bryant Ahp FRN 115 0
Big Lake BGQ 46 0
Fire Island 17 0
Birchwood 29 Civ. Paved No 4000
Lincoln Village Airpark 76 0
Twin Lake 61 0
Hilltop 114 0
Hunt Strip 61 0
Visnaw Lake 91 0
Satterburgs 107 0
Gannon's Landing 116 0
Elmendorf AFB EDF 65 Mil. Paved Yes 10000
Merrill Field MRI 42 Civ. Paved Yes 4000
Little Susitna 21 0
Anchorage International ANC 44 Civ. Paved Yes 11500
Campbell Airstrip 87 0
Settlers Bay Airstrip 55 0
Flying Crown 14 0
Rabbit Creek 11 0
Jack Fish Landing 46 0
Wicker WWA 96 Civ. Unpaved No 3700
Nancy Lake 66 0
Wasilla Lake 101 0
Memory Lake 128 0
Hardee Field 201 0
Honeybee Lake Aero Park 61 0
Gattis Strip 98 0
Colberg 38 0
Four Corners 91 0
Shirley Lake 56 0
Deshka Landing 34 0
B & B Boys Ranch 91 0
Boisselle's Strip 122 0
Willow WOW 67 Civ. Unpaved No 4400
Cardwell Strip 130 0
Sky Ranch At Pioneer Peak 37 0
Bold 274 0
Thomas Strip 58 0
Hope 61 0
Laub 30 0
Butte Municipal 20 0
Palmer Municipal PAQ 71 Civ. Paved Yes 6000
Jewell 34 0
Wasilla Creek Airpark 84 0
Kashwitna Lake 57 0
Rustic Wilderness 58 0
Girdwood AQY 46 0
Beluga BVU 40 Priv. Unpaved Yes 5000
Tyonek TYE 34 0
South Gasline 116 0
Secluded Lake 91 0
Montana Creek 76 0
Parker Lake 76 0
Nikolai Creek 9 0
Seward SWD 7 Civ. Paved No 4200
Oceanic OCI unknown 0

Ports

Intensity Name LOCODE Country
Anchorage USANC Wake Island
Palmer Wake Island
Tyonek USTYE Wake Island

More information

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