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MESS

MESS is a matched filter earthquake detector
(MESS is now integrated into the PAL repository, and no more updates for this one)

  • MESS Workflow
  1. Match: calculate CC trace on every station (matched filter)
  2. Expand: expand peak values on CC traces
  3. Shift: time shift to origin times for all CC traces
  4. Stack: stack CC traces of different stations & detect events on the stacked trace
  5. dt_p and dt_s are picked by cross-correlation
    Zhou et al., (2021)
  • Usage (see example_mess_workdir)
  1. Prepare template phase file (e.g. run PAL) & cut template waveform
  2. Run MESS
  • Tutorials
    2021/10 Online training in Chinese: vedio recording on KouShare
    2022/08 Online training in Chinese: vedio recording on KouShare

Installation

MESS is a set of codes. All you need is to setup proper Python environment. This can be accomplished easily by installing Anaconda, Obspy, and Pytorch sequentially. Or you can use the env/mess.yml file with conda.

References

  • Zhou, Y., H. Yue, S. Zhou, L. Fang, Y. Zhou, L. Xu, Z. Liu, T. Wang, L. Zhao, & A. Ghosh (2022). Microseismicity along Xiaojiang Fault Zone (Southeastern Tibetan Plateau) and the Characterization of Interseismic Fault Behavior. Tectonophysics; 833: 229364. doi: 10.1016/j.tecto.2022.229364

  • Zhou, Y., H. Yue, L. Fang, S. Zhou, L. Zhao, & A. Ghosh (2021). An Earthquake Detection and Location Architecture for Continuous Seismograms: Phase Picking, Association, Location, and Matched Filter (PALM). Seismological Research Letters; 93(1): 413–425. doi: 10.1785/0220210111

  • Zhou, Y., A. Ghosh, L. Fang, H. Yue, S. Zhou, & Y. Su (2021). A High-Resolution Seismic Catalog for the 2021 MS6.4/Mw6.1 YangBi Earthquake Sequence, Yunnan, China: Application of AI picker and Matched Filter. Earthquake Science; 34(5): 390-398.doi: 10.29382/eqs-2021-0031

  • Lu, W., Y. Zhou, Z. Zhao, H. Yue, & S. Zhou (2021). Aftershock sequence of the 2017 Mw 6.5 Jiuzhaigou, China earthquake monitored by an AsA network and its implication to fault structures and strength. Geophysical Journal International; 228(3): 1763-1779. doi: 10.1093/gji/ggab443