It is often the case that ground-motion records for a given area of interest are available in relative abundance for small (Mw < 5) earthquakes but are practically non-existent for larger earthquakes, which have the potential to cause damage to structures. This is a direct consequence of the almost universally observed Gutenberg-Richter relation that a unit increase in magnitude decreases the number of earthquakes observed by a factor of ten (e.g., Frohlich and Davis 1993, Douglas 2003). The productive use of data from small earthquakes for seismic hazard assessments relies on knowledge of how...
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