Magnitude 7.7 earthquake strikes off the coast of Jamaica
A magnitude 7.7 earthquake struck Tuesday about 80 miles from Jamaica, striking in the Caribbean Sea between Jamaica and eastern Cuba, shaking a vast area from Mexico to Florida and beyond.
For now, river deltas gain land worldwide
River deltas rank among the most economically and ecologically valuable environments on Earth. People living on deltas are increasingly vulnerable to sea-level rise and coastal hazards such as major storms, extremely high tides, and tsunamis.