The Cumana cluster is named for the city of Cumana, capital of the
Venezuelen state of Sucre. This cluster, along with the Valencia cluster
replaces the Caracas cluster in GCCEL. The cluster includes a 6.1 MS
earthquake on June 12, 1974 and a 6.9 Mw earthquake on July 9, 1997.
With most events distributed along the coast and few seismograph
stations to the north, the azimuthal coverage for location calibration
is a bit weak, but the relocations were stable. All events have depth
control from near-source or local distance readings, or teleseismic
depth phases.
