July 9, 2006

23 Miles Northwest of Prescott


Two earthquakes occurred on Sunday morning July 9th, approximately 23 miles (38 km) northwest of Prescott, Arizona. The first of magnitude 2/5 occurred at 8:22 MST This was followed by a larger tremor of magnitude 3.0 at 10:45 MST. The geographic location includes the western boundary of Chino Valley and is an area of relatively low level seismicity. The nearest significant historic activity included the M 4.9 Chino Valley tremor of February 4, 1976, and aftershocks. The nearest known active fault to the July 9th tremors is the Chino Valley fault on the east side of Chino Valley. No felt reports have been received at the Arizona Earthquake Information Center.