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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: Seismic observation using distributed acoustic sensing around the Tsugaru Strait at the Japan and Kuril Trenches, northeastern Japan

Fig. 2

Examples of earthquake signals recorded by DAS measurement. a Map of earthquakes shown in b–f. The red line represents the fiber-optic cable. b–f Time–distance plot of strain rate data from DAS measurement at the frequency range of 2–10 Hz when an earthquake occurred. Hypocenters, origin times in UT, and magnitudes of earthquakes are based on the JMA earthquake catalog

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