Mapping the Quake beneath American Canyon

An earthquake in maps. I like these consistently informative and excellent posts.

Musings on Maps

The ways of mapping the effects of latest 6.1 earthquake–the largest in a quarter of a century–raise questions not only of the damages it left in its wake, or tragic human injuries, and property loss, but the web of services it disturbed.  The expanse across which the quake’s rumbling was felt at 3:20 am endured only twenty seconds but seemed to last several minutes, shaking the sides of buildings and houses, waking panicked residents, and breaking 50 gas lines and 30 water mains, leaving some 10,000 without power.  In ways that oddly echo the interconnectivity of communications, the quake centered in American Canyon was hard to embody or illustrate, if the measurement of the rumbling along the stretch of major faults lying along the San Andreas Fault that lies between the Pacific and North American tectonic plates was exact.

earthquake-620x412

The “shake map” quickly generated by CISM revealed a quite specific concentration of incidence…

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