According to The University of the West Indies Seismic Research Centre (UWI SRC), at this time, the main hazard of focus is related to damage from earthquakes, with aftershocks likely to occur in the next few weeks to months. The potential for a larger magnitude event, along the Punta Montalva fault near the southern boundary of Puerto Rico, cannot be excluded that may have the potential to generate a tsunami. The Pacific Tsunami Warning Centre reported small tsunami waves measuring around 20 centimetres (7.9 inches) were observed to be associated with the M 6.4 event. The SRC acknowledges the Puerto Rico Seismic Network (PRSN) as the lead seismic monitoring agency for Puerto Rico and advises interests in the region to consult the PRSN for detailed updates on the seismic activity in Puerto Rico.

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