Berkeley Earthquake Expert Links Fracking To Quakes On The 'Tectonic Timebomb'
As the Bay Area marked the 25th anniversary of the Loma Prieta earthquake, there was no shortage of reminders of the power of Mother Nature and the promise of other big quakes to come. KCBS In Depth spoke with Dr. Richard Allen, director of the Berkeley Seismological Laboratory, who is working on an earthquake warning system.