Trinidad’s Newsday reports mud spewed several feet into the air, sending about 100 residents fleeing their homes.
Eyewitnesses in the Santa Flora neighborhood say they later discovered a flat piece of grassy land on which they had walked and played the day before had been transformed into two craters spewing mud and gas.
The Los Baños fault cuts across Trinidad, and has played a major role in accumulating the oil and natural gas now being extracted around the island and neighboring parts of Venezuela.
Pressure from subterranean methane gas is usually what causes the eruption of mud volcanoes.
Material expelled in those eruptions often are a slurry of fine solids suspended in liquids such as water or hydrocarbon fluids.
In August 2007, an undersea volcano off the east coast of Trinidad and Tobago emerged above the ocean surface, belching methane gas along with a slurry of mud and sediment.