GUANICA, Puerto Rico – Puerto Rico’s electrical grid is slowly going back in service on Wednesday, after a 6.4 magnitude earthquake forced shutdowns in the southern region leaving more than two-thirds of the island without power. According to the Puerto Rico Electric Power Authority, which serves about 1.5 million customers, service was restored to about half a million customers. Puerto Rico Gov. Members of USAR South Florida Task Force 2 left Miami International Airport on Tuesday night to join the efforts in Puerto Rico. Neighbors gather outside a shelter afraid of aftershocks after an earthquake in Guanica, Puerto Rico, Tuesday, Jan. 7, 2020.