Seismic Activity

CalTech Seismologists Warn Of Potentially Large Quake From Puente Hills Fault Under LAWith the amount of recent seismic activity, CalTech seismologists warn that the Puente Hills thrust fault, which runs through Downtown Los Angeles, could produce a major quake under the city.
City Council Orders Investigation Into Possible Connection Between Fracking, Seismic ActivityCity Council members Tuesday called on city staff to investigate whether natural gas and oil drilling methods, such as fracking, helped trigger Monday's magnitude-4.4 earthquake.
Report: Calif. Quake Faults Mapping Has SlowedVery few earthquake faults in California have been mapped over the past two decades despite an ambitious campaign launched in the early 1970s to help scientists learn more about the state's seismic activity.