Fig. 1From: Seismic reflection imaging of deep crustal structures via reverse time migration using offshore wide-angle seismic data on the eastern margin of the Sea of JapanMap of survey lines and examples of airgun-OBS survey data. a Two survey lines, EMJS1003 and SJ1901, are located off the western coast of Niigata and Yamagata, Japan. OBS records at b No. 4 along line EMJS1003, c No. 30 and d No. 19 along line SJ1901. Clear reflections from the Moho are visible in the recorded sections, which are indicated by yellow arrowsBack to article page