The 1984 San Pedro Basin earthquake occurred on June 24 at 07:17:14 local time with a moment magnitude of 6.7 and a maximum Mercalli intensity of VII (Very strong).

The event occurred off the southern coast of the Dominican Republic and resulted in an estimated five fatalities.

The northern boundary of the Caribbean plate is a diffuse zone of varied fault types.

The Muertos Trough marks the southern portion of this zone of deformation with north dipping convergence.

[4] This thrust earthquake occurred on a shallow and north-dipping fault and, at the time, it was the largest instrumentally recorded event in the Los Muertos Trough.