San Andreas fault, fallen trees near Wrightwood, California, revealed when past earthquakes caused trauma to the trees, disrupting their growth. Dead trees allow access to full cross-sections of their rings, but getting them to the lab isn’t always easy. Photo courtesy of Gordon Jacoby"/> San Andreas fault, fallen trees near Wrightwood, California, revealed when past earthquakes caused trauma to the trees, disrupting their growth. Dead trees allow access to full cross-sections of their rings, but getting them to the lab isn’t always easy. Photo courtesy of Gordon Jacoby">
State of the Planet

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Carrying out earthquake evidence

Stacy Morford

Along the San Andreas fault, fallen trees near Wrightwood, California, revealed when past earthquakes caused trauma to the trees, disrupting their growth. Dead trees allow access to full cross-sections of their rings, but getting them to the lab isn’t always easy. Photo courtesy of Gordon Jacoby

Along the San Andreas fault, fallen trees near Wrightwood, California, revealed when past earthquakes caused trauma to the trees, disrupting their growth. Dead trees allow access to full cross-sections of their rings, but getting them to the lab isn’t always easy. Photo courtesy of Gordon Jacoby

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