Surface Wave Tomography of China from Ambient Seismic Noise Correlation
نویسندگان
چکیده
We perform ambient noise tomography of China using the data from the China National Seismic Network and surrounding global and regional stations. For most of the station pairs, we retrieve good Rayleigh waveforms from ambient noise correlations using 18-months of continuous data at all distance ranges across the entire region (over 5000 km) and for periods from 70 s down to about 8 s. We obtain Rayleigh wave group velocity dispersion measurements using a frequency-time analysis method and invert for Rayleigh wave group velocity maps for periods from 8 s to 60 s. The tomographic maps display significant features that correlate with surface geology. Two major features stand out in particular. First, the major basins with thick sedimentary deposits correlate well
منابع مشابه
Surface wave tomography of China from ambient seismic 2 noise correlation
12 [1] We perform ambient noise tomography of China using data from the China National Seismic Network 13 and surrounding global and regional stations. For most of the station pairs, we retrieve good Rayleigh 14 waveforms from ambient noise correlations using 18 months of continuous data at all distance ranges 15 across the entire region (over 5000 km) and for periods from 70 s down to about 8 ...
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