A 5.3 magnitude aftershock was felt in St. Lucia, Dominica and St. Vincent on Wednesday at 8.11 a.m. It was located 15.11°N 61.05°W with a depth of 128 km.

This occurrence prompted the University of the West Indies Seismic Research Unit to issue a warning, for residents in the region to expect more,  possibly stronger,  aftershocks in the wake of  last week's 7.3 ( The UWI rating differed to the 7.4 USGS rating) magnitude earthquake. 

"Please be advised that aftershock sequences have a general pattern of behaviour and certain magnitudes normally associated with earthquakes of the size of the 29/11/07 event (magnitude 7.3) have not yet occurred (e.g. we have not yet had an aftershock in the magnitude range of 6.1-6.5). Scientists expect that these larger aftershocks will probably occur at some time in the future. As such, citizens should familiarize themselves with earthquake safety tips and practice these regularly through drills at home, school and work" a release from the center said.

Earthquake Safety tips may be downloaded here