A catalogue of 5000 aseismic slip events from the San Andreas, Anatolian, Dead Sea and Chaman fault systems | CU Experts

Overview

Steady aseismic slip on surface faults (creep) is occasionally interrupted by an impulsive or emergent acceleration in slip that offsets a surface fault by a few millimetres over a period of several hours to many days. We present here a catalogue of 5695 episodic events recorded by 78 creepmeters on creeping faults worldwide between 1980 and 2023. The events vary in amplitude from < 1 millimetre to > 1 centimetre, have durations from a few hours to a few weeks, and have been recorded on creepmeters at sampling rates from 1 second to 1 hour. Typical instrument resolutions are several microns. This work presents the overall features of these 5000+ events, evaluates patterns of their occurrence through space and time, and provides the resulting catalogue in a unified form to facilitate future investigations.