HAITI (BNO NEWS) — A powerful earthquake struck near Haiti’s capital on Tuesday, prompting a tsunami watch for nearby coasts, officials said.

The earthquake happened around 4.53 p.m. local time and had a preliminary magnitude of 7.3, according to the Pacific Tsunami Warning Center. It struck about 10 miles southwest of the country’s capital, Port-au-Prince.

About 10 minutes later, at 5.01 p.m. local time, a second earthquake with a preliminary magnitude of 5.9 struck about 30 miles away from the first tremor. A spokeswoman for the United States Geological Survey said a second aftershock struck moments later, but had no additional information on its magnitude.

There was no destructive widespread tsunami threat following the earthquake, according to the Pacific Tsunami Warning Center. However, it said, there is a possibility of a local tsunami that could affect coasts located usually no more than 100 kilometers from the earthquake epicenter.

“Authorities for the region near the epicenter should be aware of this possibility,” the center said in a bulletin. “Areas further from the epicenter could experience small sea level changes and strong or unusual coastal currents.”

Because a tsunami threat exists to coasts within 100 kilometers from the epicenter, tsunami watches have been issued for Haiti, Cuba, the Bahamas and the Dominican Republic.

Details of possible damage were still sketchy following the event. “There is a very good chance of significant damage,” the United States Geological Survey said. One report said a hospital on Haiti had collapsed, trapping people underneath the rubble