Crustal flow and fluids affected the 2021 M7. 4 Maduo earthquake in Northeast Tibet
We present detailed 3-D tomographic images of P and S wave velocity (Vp, Vs), Poisson's
ratio (ν) and Vp azimuthal anisotropy of the crust and uppermost mantle beneath the source
area of the 21 May 2021 Maduo earthquake (M 7.4) in the NE Tibetan plateau. The images
are obtained by inverting a large number of P and S wave arrival-time data of 11,235 local
earthquakes and Maduo aftershocks recorded at 67 seismic stations. Our results show that
the 2021 Maduo mainshock occurred in a low-Vs and high-ν anomaly, probably reflecting …
ratio (ν) and Vp azimuthal anisotropy of the crust and uppermost mantle beneath the source
area of the 21 May 2021 Maduo earthquake (M 7.4) in the NE Tibetan plateau. The images
are obtained by inverting a large number of P and S wave arrival-time data of 11,235 local
earthquakes and Maduo aftershocks recorded at 67 seismic stations. Our results show that
the 2021 Maduo mainshock occurred in a low-Vs and high-ν anomaly, probably reflecting …
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