Do faults preserve a record of seismic slip? A field geologist's opinion

In this report, a geologist takes a close look at the question of whether it is now possible to confidently identify the record of seismic slip in exposures of fault zones, cores obtained by drilling, or thin sections of fault rocks. This question is addressed on the basis of the understanding of the seismological definition of an earthquake, and of what this definition implies about the physical character of the earthquake source.