A major 7.7 magnitude quake prompted tsunami warnings and building evacuations as far as Miami, several hundred miles from the quake's centre.
Videos shared on social media show sinkholes opening in the Cayman Islands, where a 4.9-magnitude aftershock was reported following Tuesday's massive quake.
According to the US Geological Survey, sinkholes form in areas where the ground has no natural external surface drainage.
They typically form as the earth around them dissolves, causing an underground "cavern" to form and making the surface vulnerable to collapse, or if construction changes an area's natural water drainage and weakens the ground around it.
Earthquake happenings in the Cayman Islands 1/2 pic.twitter.com/wUGxuE9y9T— Pedro (@p_dippy)January 28, 2020
Cayman Islands after the earthquake 1/2 pic.twitter.com/qnnXLdSSOa— 𝑅𝒾𝒸𝒽 𝒜𝓊𝓃𝓉𝒾𝑒 𝑀 (@_MtheGem)January 28, 2020
The quake struck at 2.10 pm south of Cuba and northwest of Jamaica at a depth of approximately six miles, according to the US Geological Survey.
Reports from the Cayman Islands depicted spilled sewage lines and cracked roads, though no reported injuries or deaths.
Residents and workers in downtown Miami were urged to evacuate from buildings impacted by tremors felt throughout south Florida.