text: Tremors rock earth deep beneath San Andreas Fault Mysterious tremors deep beneath the San Andreas Fault near the quake-prone town of Parkfield are shaking the earth #39;s brittle crust, far below the region where earthquakes normally strike -- and scientists say they can #39;t understand what #39;s happening or what 
inputs: Tremors rock earth deep beneath San Andreas Fault Mysterious tremors deep beneath the San Andreas Fault near the quake-prone town of Parkfield are shaking the earth #39;s brittle crust, far below the region where earthquakes normally strike -- and scientists say they can #39;t understand what #39;s happening or what 