Cuba and Iran were hit by earthquakes within hours of each other, just a day after a major quake killed dozens in the Philippines.
A historically strong earthquake struck off Cuba's northwest coast on Monday, according to official reports, shaking parts of Cuba, Mexico, and Florida.
The US Geological Survey (USGS) measured the quake at a magnitude 6.1 at a shallow depth of 26 km (16 miles) and its epicentre 104 km west-northwest of Cuba’s Mantua.
No injuries or damage were immediately reported.
A magnitude 5 earthquake struck Sargaz in Iran's southern Hormozgan province early on Tuesday, Iranian state media reported.
No reports of any casualties have come in yet here as well.
The earthquake in Cuba was unusual for this area of the Caribbean, with USGS seismologist Paul Earle noting that the quake occurred within a tectonic plate, where earthquakes are usually more scattered and less frequent than when they occur along plate boundaries.
The quake was felt as far away as Mexico and the US, with several reports of shaking in the southwestern part of Florida.
No tsunami warning or watch was issued after the earthquake, according to the US National Weather Service.