A strong earthquake struck off the south of Puerto Rico early Tuesday, the US Geological Survey said, the latest in a series of tremors that have shaken the island since December 28.
The shallow 6.5 magnitude quake struck 13.6 kilometers south of the city of Ponce, USGS said, revising down its initial reading of 6.6.
The quake struck just off the US territory's southern Caribbean coastline at 4:24 am local time (0824 GMT).
Local news sites reported an electricity blackout following the earthquake.
On social media, people in Puerto Rico wrote of being shaken awake by the force of the quake.
One woman on Twitter said she had been "wrenched from sleep", adding "Everybody is awake & scared all over."
An alert issued by the Tsunami Warning Center immediately following the earthquake was later cancelled.
Tuesday's quake was the strongest of a series of tremors that have shaken the island since December 28, topping Monday's 5.8 quake.
That earthquake toppled houses and caused power outages, but there were no reports of casualties.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)
Earthquake Of 6.5 Magnitude Hits Indonesia, No Tsunami Alert Issued At Least 12 Killed In Afghanistan-Pakistan Earthquake Earthquake Measuring 5.9 On Richter Scale Hits Puerto Rico Parents Gave Names Of Interns, Doctors To CBI In Kolkata Horror: Sources Who Is Jasveen Sangha, "Ketamine Queen" Charged With Matthew Perry's Death How Extreme Weather Is Leading To Rise In Child Marriages In Pakistan Police Arrest Suspect In Bihar Dalit Girl Kidnapping, Murder Case 80 Killed In Paramilitary Attack In Sudan OpenAI Blocks Iranian Group's ChatGPT Accounts For Targeting US Election Track Latest News Live on NDTV.com and get news updates from India and around the world.