Ground Truth of Surface Rupture and Near-Fault Strong Motion: Video, Seismic and Field
Abstract
Abstract Seismic radiation and dynamic faulting have rarely been observed concurrently, limiting observational constraints on earthquake rupture processes and seismic hazards. Here we report the first directly validated observation of surface rupture and strong-motion generation captured by a security camera and corroborated by nearby seismic records and field measurements during the 2026 Kumamoto, Japan, earthquake. The near-fault ground motion comprised two velocity pulses generated by subsurface and surface fault ruptures, respectively.
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