M 4.6 in Antigua and Barbuda on 22 Mar 2016 14:09 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: 43.38 Km
Lat/Lon: 17.3168 , -61.5923
Event Date: 22 Mar 2016 14:09 UTC
22 Mar 2016 10:09 Local
Exposed Population:
About 91925 people within 100km
Source: NEIC
Inserted at: 22 Mar 2016 14:48 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
1123068 0 22 Mar 2016 14:09 4.6M, 43.38km N/A 90 thousand (in 100km) 00:38 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 Antigua and Barbuda , of Antigua & Barbuda (population 65,212) . The nearest places are Plymouth, Basse-Terre, Basseterre, Saint John's, Betty's Hope, Saint Johnston Village, Boons Bay, Osbourn, Half Moon Bay, Cedar Grove, and Barnes Hill.

Radius Population
100 km 92000 people
75 km 69000 people
50 km 69000 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Antigua & Barbuda Antigua and Barbuda 65000 people

Affected populated places

Name Region Province Country City class Population Distance
Willikies Antigua and Barbuda Village 1700 people 29 km
Barnes Hill Antigua and Barbuda Village - 29 km
Boons Bay Antigua and Barbuda Village - 30 km
Cedar Grove Antigua and Barbuda Village <1000 people 30 km
Betty's Hope Antigua and Barbuda Village - 31 km
Osbourn Antigua and Barbuda Village - 31 km
Half Moon Bay Antigua and Barbuda Village - 32 km
Newfield Antigua and Barbuda Village - 32 km
Pares Antigua and Barbuda Village - 32 km
Saint Johnston Village Antigua and Barbuda Village - 33 km
Potters Village Antigua and Barbuda Village 1400 people 33 km
Dickenson Bay Antigua and Barbuda Village - 33 km
Saint John's Antigua and Barbuda Capital 22000 people 35 km
Plymouth Saint Anthony Montserrat Capital no people 96 km
Basseterre St. Kitts and Nevis Capital 13000 people 121 km
Basse-Terre Guadeloupe Capital 11000 people 147 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
V C Bird International ANU 19 Civ. Paved Yes 9000 30 km
Barbuda Codrington BBQ unknown 37 km

Ports

Name LOCODE Country Distance
Parham Harbour Antigua and Barbuda 28 km
Saint Johns AGSJO Antigua and Barbuda 36 km

More information

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