M 4.6 in United States on 20 Nov 2015 22:40 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: 4.6M
Depth: 3.05 Km
Lat/Lon: 36.9039 , -97.7643
Event Date: 20 Nov 2015 22:40 UTC
20 Nov 2015 16:40 Local
Exposed Population:
629385 people within 100km
Source: NEIC
Inserted at: 20 Nov 2015 23:00 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1107699 0 20 Nov 2015 22:40 4.6M, 3.05km 5.69 630 thousand (in 100km) 00:19 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 Oklahoma (population 3,273,622) . The nearest places are Wichita, Renfrow, and Clyde.

Radius Population
100 km 630000 people
75 km 170000 people
50 km 28000 people
20 km 2700 people
10 km <1000 people
5 km <1000 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Oklahoma United States 3.3 million people
Kansas United States 2.6 million people

Affected populated places

Name Region Province Country City class Population Distance
Clyde Oklahoma United States Village - 8 km
Renfrow Oklahoma United States Village <1000 people 9 km
Wichita Kansas United States Major city 340000 people 96 km

see full list

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Medford Municipal 333 12 km
Caldwell Municipal 353 22 km
Weedpatch International 339 22 km
Homestead Farms 314 23 km
Miller Brothers 381 23 km
Wilcox Fld 385 27 km
Pond Creek Municipal 323 27 km
Mc Crays 384 29 km

Dams

Reservoir Dam Name River Year Distance
Great Salt Plains Lake Great Salt Plains Lake Salt Fork of Arkansas River 1941 38 km

More information

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