Magnitude 4.4 earthquake jolts North Bay
SANTA ROSA – Magnitude 4.4 and 3.9 earthquakes jolted the North Bay on Tuesday night, according to the U.S. Geological Survey.
The earthquakes hit within a minute of one another, with the magnitude 4.4 occurring at 6:39 p.m. about 2.4 miles north-northeast of Santa Rosa and the magnitude 3.9 occurring at 6:40 p.m. about 2.3 miles north of Santa Rosa, the USGS reported.According to the USGS, the earthquakes occurred on the Rodgers Creek Fault, a “potential right-lateral strike-slip fault.” The two most recent moderate sized quakes on the fault – a magnitude 5.6 and magnitude 5.
The most recent large, surface-rupturing earthquake on the fault occurred between 1690 and 1824, and probably between 1715 and 1776, according to the USGS. The 2003 Working Group for California Earthquake Probability estimated the recurrence interval between large quakes on the fault as between 200 and 300 years.According to the USGS, a break along the combined length of the Rodgers Creek and Hayward faults could produce a major earthquake of magnitude 7.
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