A series of earthquakes and aftershocks have rocked Puerto Rico over the last two days. The worst, a 6.6 magnitude quake, caused an Island-wide blackout. The Washington Post writes that this one was centered on the southwestern coast :

The U.S. Geological Survey said the shaking began about 4:24 a.m. and was followed by intense aftershocks, including a 6.0-magnitude shock wave that also was felt across the U.S. territory. As the sun rises on Puerto Rico, reports of significant damage and injuries are beginning to emerge from areas already impacted by a 5.8-magnitude quake on Monday that destroyed homes and a natural rock formation that was a signature coastal tourist attraction. The Tuesday morning earthquake briefly triggered tsunami-warning sirens and authorities alerted residents that a tsunami was possible — but that warning was later canceled.

The Miami Herald adds that some landmarks have been impacted:

Glidden Lopez, the spokesman for Guayanilla municipality, said the city’s colonial-era church, from the 1840s, had been destroyed during the pre-dawn earthquake.

“All that’s left is one wall and half of another wall,” he said of the beige and pink building that had dominated the main plaza. “The hospital was damaged and there were several houses that have collapsed but we don’t know how many yet.”

Guayanilla had lost one if its main tourist attractions, a natural seaside arch known as Punta Ventana, during an earthquake on Monday.

There are reports that one person has died. CBS’s David Begnaud says he spoke with people on the island who are “staying outside over fears their homes may collapse with future earthquakes.” Watch his report above.