The Umluj cluster is named for the city of Umluj on the Red Sea coast of
Saudi Arabia. The cluster is dominated by small events on shore but
includes a half dozen offshore events in the Red Sea. Most events are
small and observed only to local or near-regional distances but they are
retained in order to provide statistical power for calibrated location
of five events that were recorded teleseismically. The largest
earthquake is a 5.1 Mw event on May 19, 2009. All events have depth
control from near-source and local-distance readings.
