USGS: Chance of California Earthquake Of Magnitude 5 or Higher Is 99 % Within The Next Week The USGS in California stated late last night that the chance of an earthquake aftershock of magnitude 5 or higher is 99% within the next week in southern California. The chance of an earthquake of magnitude 6 or higher is 61 %, and it is most likely that as few as 0 or as many as 5 such earthquakes may […] Industry News SnowBrains | July 6, 2019 0 Comments