Aftershocks can occur decades to centuries on from original earthquakes, study says

Aftershocks can occur “decades to centuries” from an original earthquake, a new study has suggested. Researchers looked at the timing and clustering of earthquakes that followed a group of historical ones in North America – one in Charlevoix, Quebec, in 1663, three around New Madrid on the Missouri-Kentucky border between 1811 and 1812, and one […]