It was a magnitude 7.4 earthquake that occurred 18 km (11 mi) west northwest from Basse-Pointe, Martinique.

[2] This earthquake was felt strongly in Martinique, Dominica, St. Lucia, Guadeloupe, Montserrat, Antigua, St Kitts and Nevis, Anguilla, British Virgin Islands, U.S. Virgin Islands, and Puerto Rico.

It was also felt in other Eastern Caribbean islands, from Puerto Rico to the north to Trinidad and Tobago to the south.

It could also be felt in part of South America such as in Venezuela, Guyana, Suriname, and French Guiana.

[4] The intensity reached VI to VII on the EMS98 scale in Martinique and Dominica.