Richard AsterColorado State University Earthquake Forecast for Puerto Rico: Dozens More Large Aftershocks Are Likely Multiple strong and damaging earthquakes are wreaking havoc on Puerto Rico. And geoscientists forecast dozens more strong aftershocks are likely in the area. Earthquake Watch: California Is Overdue for a 'Big One' Opinion California has a 93 percent chance of a magnitude-7 or greater earthquake occurring by 2045. Early warning systems, now in development, could limit casualties and damage. By Richard Aster Published 1 February 18 Opinion
