title: Stick-slip as a mechanism for earthquakes.
abstract: Stick-slip often accompanies frictional sliding in laboratory experi ments with geologic materials. Shallow focus earthquakes may represent stick slip during sliding along old or newly formed faults in the earth In such a situation, observed stress drops repre sent release of a small fraction of the stress supported by the rock surround ing the earthquake focus.
authors.forename: W F
authors.initials: WF
authors.lastname: Brace
authors.forename: J D
authors.initials: JD
authors.lastname: Byerlee