While the San Andreas Fault might have broad name recognition, over the past 58 years, the Mendocino Triple Junction has actually experienced six quakes of the 21 in the U.S. that topped magnitude 6.4 (large gray circles, which do not scale with magnitude), while the San Andreas has only experienced one. So, despite the prevalence of the San Andreas in hazard assessments, it has taken a back seat to the Mendocino Triple Junction.