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M 5.6 in Antigua and Barbuda on 17 Apr 2017 05:23 UTC
GDACS Event Report - Earthquake impact

Earthquake event

Population map close up
Population map close up. (Source: JRC)
  • Magnitude: 5.6 M
  • Depth: 21.11 km (shallow)
  • Source: NEIC NEIC us10008iaa
  • Location (latitude/longitude): 17.4756, -61.1385
  • Time (UTC): 17 Apr 2017 05:23:15
  • Time (ECT): 17 Apr 2017 07:23:15

Event time line

For accessing reports of previous advisories, please click on the advisory number in the table below.

IDAlertScore DateMag, DepthMax Intensity (MMI*)Pop [100 km or MMI 9-7]Tsunami risk (max height)Delay (hh:mm) Source
1164257 1

Calculation Episode detail

Reference Id Level Score Type Date Added Population
100km or MMI9-7    
20km or Max MMI    
Max Height(m)
Episode 1164257
1 realtime 2017-04-17 07:42:16 No people affected 0
  Earthquake 182152
0.11 realtime 2017-04-17 07:42:16 90 thousand No people affected 0
  Shakemap 2
1 realtime 2017-05-26 12:09:09 No people affected No people affected 0
17 Apr 2017 05:23 5.6M, 21.11km N/A 90 thousand 00:18 NEIC NEIC

(*) Modified Mercalli Intensity Scale

Earthquake impact details


Population near epicenter
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

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

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

See complete places

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

Critical infrastructure

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

Nearby and affected airports
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
Major ports
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

Data resources

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

About the data


While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information. The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.