This work was partially supported by the Chinese Earthquake Study Foundation(Grant No.103076);the Basic Research from the Ministry of Science and Technology(Grant No.2002CCD01700);the Japan Society for the Promotion of Science(Grant Nos.11440134,12002006).
A detailed 3-D P-wave velocity model of the crust and uppermost mantle under the capital region is de- termined with a spatial resolution of 25 km in the horizontal direction and 4—17 km in depth. We used 48750 preci...