M 6 in United States on 31 Dec 2018 02:35 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: 6.0M
Depth: 31 Km
Lat/Lon: 54.3874 , -161.5066
Event Date: 31 Dec 2018 02:35 UTC
30 Dec 2018 15:35 Local
Exposed Population: About 1000 people within 100km
Source: NEIC us2000izcv
Inserted at: 31 Dec 2018 23:52 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
NEIC 0 0
us2000izcv Scaled population (vector) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 1  
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
1243214 0 31 Dec 2018 02:35 5.8M, 34km N/A No people affected (in 100km) 00:05 NTWC    
1243217 0 31 Dec 2018 02:35 5.5M, 26.3km N/A 2 thousand (in 100km) 00:13 ALASKA EC
1243218 0 31 Dec 2018 02:35 6.1M, 26.92km 4.27 N/A (in MMI>=VII) 00:20 NEIC
1243330 0 31 Dec 2018 02:35 6M, 31km 4.23 N/A (in MMI>=VII) 21:16 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 ,of Alaska (population 84) . The alertlevel for this event is GREEN

Intensity Population
no people
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1243218 54.428/-161.472 6.1 26.92 4.07 31 Dec 2018 02:56 00:21 (new episode)
2 0 1243218 54.428/-161.472 6.1 26.92 4.27 31 Dec 2018 04:38 02:02 (upd of #1)
3 0 1243330 54.428/-161.472 6.1 26.92 4.27 31 Dec 2018 23:52 21:17 (new episode)
4 0 1243330 54.387/-161.507 6 31 4.23 31 Dec 2018 23:54 21:18 (upd of #3)

Affected Provinces

Intensity Region Province Country Population
Alaska United States <1000 people
Alaska United States 2200 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Pauloff Harbor Alaska United States Village - 78 km
Sanak Alaska United States Village - 85 km
Belkofski Alaska United States Village - 85 km
Unga Alaska United States Village - 110 km
Squaw Harbor Alaska United States Village - 114 km
Ikatan Alaska United States Village - 123 km
Morzhovoi Alaska United States Village - 129 km
Village Alaska United States Village - 141 km
Herendeen Bay Alaska United States Village - 163 km
Port Moller Alaska United States Village - 187 km
Bear River Alaska United States Village - 209 km
Ilnik Alaska United States Village - 273 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
Pauloff Harbor KPH unknown 0 77 km
King Cove KVC 47 0 95 km
Squaw Harbor unknown 0 112 km
Cold Bay CDB 30 Civ. Paved Yes 10400 120 km
Sand Point SDP 6 Civ. Paved Yes 4000 121 km
Blinn Lake 15 0 125 km
False Pass KFP 6 0 133 km
Herendeen Bay 6 0 162 km
Nelson Lagoon NLG 4 0 182 km
Port Moller PML unknown 0 190 km
Johnsons Landing 40 0 200 km
Ivanof Bay KIB unknown 0 212 km
Cape Sarichef CSH 89 Civ. Unpaved No 3500 222 km
Perryville 7 0 226 km

Ports

Intensity Name LOCODE Country Distance
Belkofski Wake Island 84 km
Sanak Island Wake Island 86 km
King Cove Wake Island 91 km
Unga Wake Island 109 km
Baralof Bay Wake Island 113 km
Fort Randal Wake Island 116 km
Cold Bay Wake Island 119 km
Sand Point Wake Island 122 km
Port Moller Wake Island 188 km
Unimak Wake Island 196 km
Ivanof Bay Wake Island 205 km
Perryville USPYX Wake Island 227 km

More information

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