aftershocks, dark fiber, earthquake, fiber optics, new discoveries

Dark Fiber Network Finds Missed Aftershocks in Chinese Earthquake

Just days after a 2020 magnitude 5.1 earthquake in Tangshan, China, researchers turned nearly 8 kilometers of unused telecom fiber optic cable, known as “dark fiber,” into a seismic array that detected dozens of aftershocks that were missed by permanent seismic stations. The rapid deployment of the distributed acoustic sensing (DAS) technology doubled the total ...

Troy Oakes

Cracked stone wall.