Abstract
We estimated the crustal seismic body-wave velocities beneath Thailand and Malay Peninsula by using teleseismic waveform analysis from 7 earthquakes in Prachuap Khiri Khan, Thailand. The seismic waveform studies on phase arrivals of P–wave and S-wave data retrieve from 2 broadband seismic stations, 1 CHTO station (Chiang Mai–Thailand) and 2 BTDF station (Singapore), are analysed in this paper. Obviously, the crustal seismic velocities from each stations were difference, with Vp (7.683–7.892 km/s) and Vs (4.275–4.403 km/s) propagations in the southern path (Malay Peninsula) are greater than Vp (7.556–7.827 km/s) and Vs (4.220–4.376 km/s) propagates in the northern path. The results show that to the corresponding with differ in earth’s crust density, the continental crust is less dense than the oceanic crust, and these data available for crustal seismic velocity for these region.
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