M 5.7 in United States on 30 Nov 2018 17:35 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: 5.7M
Depth: 39.8 Km
Lat/Lon: 61.2586 , -149.9214
Event Date: 30 Nov 2018 17:35 UTC
30 Nov 2018 08:35 Local
Exposed Population: About 1000 people in MMI
390000 people within 100km
Source: ALASKA EC ak20419042
Inserted at: 30 Nov 2018 18:26 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)		 GDACS score
ALASKA EC 0 0
ak20419042 Scaled population (vector) 0  
  C1 shakemap -0.59  
  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
1239030 0 30 Nov 2018 17:35 5.8M, 39.5km 4.75 N/A (in MMI>=VII) 00:10 ALASKA EC
1239039 0 30 Nov 2018 17:35 5.8M, 13.8km 6.09 N/A (in MMI>=VII) 00:28 ALASKA EC
1239041 0 30 Nov 2018 17:35 5.8M, 43.8km 6.09 N/A (in MMI>=VII) 00:37 ALASKA EC
1239042 0 30 Nov 2018 17:35 5.8M, 52.4km 6.09 N/A (in MMI>=VII) 00:39 ALASKA EC
1239046 0 30 Nov 2018 17:35 5.7M, 39.8km 6 N/A (in MMI>=VII) 00:50 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 ,of Alaska (population 659) . The alertlevel for this event is GREEN

Intensity Population
<1000 people
160000 people
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1239030 61.208/-149.894 5.8 39.5 4.75 30 Nov 2018 18:00 00:25 (new episode)
2 0 1239039 61.208/-149.894 5.8 39.5 4.75 30 Nov 2018 18:04 00:28 (new episode)
3 0 1239039 61.186/-149.886 5.8 37.7 5.14 30 Nov 2018 18:10 00:34 (upd of #2)
4 0 1239039 61.186/-149.886 5.8 37.7 5.14 30 Nov 2018 18:12 00:37 (upd of #3)
5 0 1239041 61.186/-149.886 5.8 37.7 5.14 30 Nov 2018 18:13 00:37 (new episode)
6 0 1239042 61.186/-149.886 5.8 37.7 5.14 30 Nov 2018 18:15 00:39 (new episode)
7 0 1239046 61.172/-149.908 5.8 43.8 5.71 30 Nov 2018 18:26 00:50 (new episode)
8 0 1239046 61.172/-149.908 5.8 43.8 5.71 30 Nov 2018 18:28 00:52 (upd of #7)
9 0 1239046 61.259/-149.921 5.7 39.8 5.67 30 Nov 2018 18:48 01:12 (upd of #8)

Affected Provinces

Intensity Region Province Country Population
Alaska United States <1000 people
Alaska United States 140000 people
Alaska United States 250000 people
Alaska United States <1000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Anchorage Alaska United States Major city 260000 people 6 km
Spenard Alaska United States Village - 8 km
John Fitzgerald Kennedy City Alaska United States Village - 16 km
Eagle River Alaska United States Village - 20 km
Chugiak Alaska United States Village - 28 km
Birchwood Alaska United States Village - 28 km
Eklutna Alaska United States Village - 37 km
Nunaka Valley Alaska United States Village - 10 km
Bay City Alaska United States Village - 12 km
Rainbow Alaska United States Village - 32 km
Cottonwood Alaska United States Village - 34 km
Pittman Alaska United States Village - 40 km
Alexander Alaska United States Village - 41 km
Houston Alaska United States Village 1200 people 43 km
Wasilla Alaska United States Village 5500 people 44 km
Matanuska Alaska United States Village - 49 km
Tanaina Alaska United States Village 5000 people 49 km
Willow Alaska United States Village 1700 people 50 km
Gateway Alaska United States Village 3000 people 50 km
Girdwood Alaska United States Village - 53 km
Palmer Alaska United States Village 4500 people 58 km
Kashwitna Alaska United States Village - 67 km
Ladd Alaska United States Village - 67 km
Portage Alaska United States Village - 69 km
Old Tyonek Alaska United States Village - 79 km
McDougal Alaska United States Village - 88 km
Nkishka No 2 Alaska United States Village - 97 km
Nikiski Alaska United States Village 4300 people 99 km
Nikisnka Alaska United States Village - 103 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) Distance
Birchwood 29 Civ. Paved No 4000 29 km
Sleepers Strip 38 0 2 km
Point Mackenzie 22 0 6 km
Anchorage International ANC 44 Civ. Paved Yes 11500 10 km
Goose Bay 24 0 16 km
Fire Island 17 0 17 km
Hilltop 114 0 31 km
Merrill Field MRI 42 Civ. Paved Yes 4000 6 km
Elmendorf AFB EDF 65 Mil. Paved Yes 10000 7 km
Campbell Airstrip 87 0 13 km
Bryant Ahp FRN 115 0 14 km
Flying Crown 14 0 17 km
Rabbit Creek 11 0 20 km
Little Susitna 21 0 22 km
Settlers Bay Airstrip 55 0 31 km
Big Lake BGQ 46 0 31 km
Hardee Field 201 0 32 km
Lincoln Village Airpark 76 0 35 km
Twin Lake 61 0 35 km
Hunt Strip 61 0 39 km
Jack Fish Landing 46 0 40 km
Wicker WWA 96 Civ. Unpaved No 3700 42 km
Hope 61 0 43 km
Visnaw Lake 91 0 43 km
Satterburgs 107 0 44 km
Gannon's Landing 116 0 44 km
Wasilla Lake 101 0 45 km
Nancy Lake 66 0 48 km
Colberg 38 0 48 km
Four Corners 91 0 48 km
Gattis Strip 98 0 49 km
Memory Lake 128 0 49 km
Bold 274 0 51 km
B & B Boys Ranch 91 0 51 km
Honeybee Lake Aero Park 61 0 51 km
Sky Ranch At Pioneer Peak 37 0 53 km
Boisselle's Strip 122 0 53 km
Cardwell Strip 130 0 53 km
Shirley Lake 56 0 54 km
Deshka Landing 34 0 54 km
Girdwood AQY 46 0 54 km
Willow WOW 67 Civ. Unpaved No 4400 56 km
Butte Municipal 20 0 57 km
Palmer Municipal PAQ 71 Civ. Paved Yes 6000 58 km
Thomas Strip 58 0 60 km
Wasilla Creek Airpark 84 0 60 km
Laub 30 0 61 km
Downwind Landing 67 0 61 km
Beluga BVU 40 Priv. Unpaved Yes 5000 61 km
Jewell 34 0 62 km
South Gasline 116 0 64 km
Kashwitna Lake 57 0 65 km
Tyonek TYE 34 0 69 km
Rustic Wilderness 58 0 69 km
Nikolai Creek 9 0 87 km
Skilak Blm Helistop 84 0 91 km
Offshore Ststems-Kenai 46 0 95 km
Carty's Airstrip 46 0 97 km
Mackeys Lakes 53 0 100 km
Arness Lake 38 0 102 km
Victory 549 0 121 km
Farrars 572 0 126 km
Sheep Mountain SMU 838 0 142 km
Gunsight Mountain 899 0 155 km
Port Oceanic PRL unknown 0 164 km

Ports

Intensity Name LOCODE Country Distance
Anchorage USANC Wake Island 6 km
Palmer Wake Island 54 km
Tyonek USTYE Wake Island 69 km
Nikiski USNKI Wake Island 103 km

More information

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