The 2008 Iwate-Miyagi Nairiku earthquake (Mw 6.9, Mjma 7.2) occurred in southwestern Iwate Prefecture, Japan (39.03°N, 140.88°E, depth 8 km), on 13 June, at 23:43:45 GMT (Japan Meteorological Agency 2008). The surface accelerometer of KiK-net station IWTH25, located 3 km southwest of the epicenter, produced one of the largest strong-motion values of peak ground acceleration (PGA) ever recorded (4278 cm/s2 for the vector sum of the three components [Kik-net 2000]) and exhibited an asymmetric amplification in the vertical component (Aoi et al.). This asymmetric amplification has been interpreted to be a...
Spatially Dense Velocity Structure Exploration in the Source Region of the Iwate-Miyagi Nairiku Earthquake
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Masumi Yamada, Masayuki Yamada, Koji Hada, Shiro Ohmi, Takashi Nagao; Spatially Dense Velocity Structure Exploration in the Source Region of the Iwate-Miyagi Nairiku Earthquake. Seismological Research Letters 2010;; 81 (4): 597–604. doi: https://doi.org/10.1785/gssrl.81.4.597
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