Earthquake Magnitude With DAS: A Transferable Data‐Based Scaling Relation

Distributed Acoustic Sensing (DAS) is a promising technique to improve the rapid detection and characterization of earthquakes. Previous DAS studies mainly focus on phase information but less amplitude information. In this study, we compile earthquake data from two arrays in California, USA, one submarine array Sanriku, Japan. We develop data-driven method obtain first scaling relation between magnitude. Our results reveal that amplitudes recorded by different regions follow similar relation. The can provide magnitude estimation effectively avoid uncertainties caused conversion ground motions. show appears transferable new with calibrations. highlights great potential source early warning.