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UW a lead partner on new NSF-funded earthquake research center
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UW Heads New NSF-Funded Earthquake Research Center
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Laying an undersea cable in Spain, one of the 600,000-plus miles of fibre optic submarine cables. (Photo: ANDER GILLENEA/AFP via Getty Images, Getty Images)
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Many kilometres off the western coast of the Americas, an undersea cable connects Los Angeles, California to Valparaiso, Chile. Stretched end-to-end, it’s equal to four-fifths of the Earth’s diameter. The cable is fibre optic; it’s a lifeline for data transmitted between the two continents. But according to new research, the cable could easily serve a dual function: mitigating the disastrous impacts of earthquakes and tsunamis.
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Using Curie - Google s 10,000-kilometer-long underwater fiber-optic cable connecting Los Angeles, California and Valparaiso, Chile - researchers have demonstrated a novel method for detecting deep-sea seismic activity and waves at the ocean s surface. The approach, which monitors the traffic that courses ceaselessly through networks of transcontinental telecommunication cables, successfully detected storm swell events and earthquakes across a nine-month observation period. This approach requires no new infrastructure or instrumentation, but instead relies on utilizing observations already made to extract the telecommunications data received at the end of the cable, writes William Wilcock in a related Perspective. The new study suggests that the approach could transform our oceanwide web-work of fiber optics into a continuous, real-time earthquake and tsunami monitoring and detection system. Monitoring seismic activity on the seafloor is crucial for studying Earth s crus