The Alberchigos cluster is named for the town of Albérchigos in
northwestern Baja, Mexico. The earthquakes are mostly small; the largest
event is 5.3 Mw on August 17, 2020. Only events that were recorded to at
least 5° epicentral distance are retained. Teleseismic arrivals are
scarce beyond 40°. The seismograph network in the region is quite dense
since ~2005 and the location calibration is very robust. All events have
depth control from near-source and local-distance readings.
