A strong 6.1 magnitude earthquake and at least three aftershocks shook northwestern Nicaragua, triggering panic among residents.
There were no immediate reports of damage or casualties.
The 6.1 quake struck at 9:25 p.m. (local time), centred 17 kilometres east of Puerto Morazan near the Honduras border at a depth of 10 kilometres, according to the United States Geological Survey (USGS).
It was followed by three weaker aftershocks within the next 20 minutes, USGS said.
"The quake was felt almost throughout the country," government spokeswoman and First Lady Rosario Murillo said, calling it "unusually strong."
She urged residents to stay calm, warning of the threat of more aftershocks.
Puerto Morazan is about 125 kilometres northwest of the capital Managua.