M 5.6 in Antigua and Barbuda on 17 Apr 2017 05:23 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: 5.6M
Depth: 21.11 Km
Lat/Lon: 17.4756 , -61.1385
Event Date: 17 Apr 2017 05:23 UTC
Exposed Population: About 90000 people within 100km
Source: NEIC us10008iaa
Inserted at: 17 Apr 2017 05:42 UTC
INFORM Coping capacity: 3.6 (ATG)

Gdacs Score

For more info on GDACS alert score click here.

Episode Timeline

IDAlertScoreDateMag, DepthMax Intensity (MMI*)Pop [100 km or MMI 9-7]Tsunami risk (max height)Delay (hh:mm)Source
1164257 0.11 17 Apr 2017 05:23 5.6M, 21.11km 3.76 90 thousand 00:18 NEIC

Exposed population

The earthquake happened in Antigua and Barbuda , of Antigua & Barbuda (population 65,212) . The nearest places are and Saint John's.

Radius Population
100 km 90000 people
75 km <1000 people
50 km no 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
Guadeloupe Guadeloupe 410000 people
Montserrat Montserrat -
St. Kitts & Nevis Saint Kitts and Nevis 41000 people
Dominica Dominica 70000 people
Anguilla Anguilla 9200 people
Martinique Martinique 370000 people
British Virgin Is. Virgin Islands, British 18000 people
Virgin Is. Virgin Islands, U.S. 100000 people
St. Lucia Saint Lucia 140000 people
Humacao Puerto Rico -
St. Vincent & the Grenadines Saint Vincent and the Grenadines 110000 people
Barbados Barbados 260000 people

Affected populated places

Name Region Province Country City class Population Distance
Saint John's Antigua and Barbuda Capital 21000 people 85 km

see full list

Critical infrastructure

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


Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Barbuda Codrington BBQ unknown 0 70 km
V C Bird International ANU 19 Civ. Paved Yes 9000 79 km


Name LOCODE Country Distance
Barbuda AGBBQ Antigua and Barbuda 78 km
Parham Harbour Antigua and Barbuda 78 km
Saint Johns AGSJO Antigua and Barbuda 86 km

More information

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