Fiber optic cables used to image earthquake rupture with high resolution (IMAGE)

California Institute of Technology

Fiber optic cables used to image earthquake rupture with high resolution

Caption

Green lines illustrate fiber optic cables throughout California; the segment marked in red is the section used to detect the Antelope Valley M6 earthquake in 2021. As shown in the inset, the earthquake was actually made up of four distinct “stuck” areas—the purple, blue, green, and red target symbols—on the fault that ruptured sequentially. Using fiber optic cables as seismometers enables high-resolution imaging of earthquake ruptures.

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Courtesy of Z. Zhan

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