Earthquake forecast for Puerto Rico: Dozens more large aftershocks are likely
2020 Jan 14
The Immaculate Conception Catholic Church lies in ruins after a magnitude 6.4 earthquake in Guayanilla, Puerto Rico, Jan. 7, 2020. AP Photo/Carlos Giusti
Puerto Rico's January earthquakes came after many foreshocks and have been followed by numerous aftershocks. Scientists are studying these sequences to improve earthquake forecasting.