The Oran cluster is named for the city of Oran on the Mediterranean
coast of Algeria. It includes a few events across the border in coastal
Morocco. The cluster contains four events with magnitude > 5, the
largest being the 5.5 Mw event on June 6, 2008. Most events were
observed to teleseismic distances but some smaller events that were
recorded only to near-regional distances were retained to improve the
azimuthal coverage and statistical power of the location calibration.
All events have depth control, from near-source or local-distance
readings, or in a several cases, a waveform modeling study or
teleseismic depth phases.