NaNDC is a full moment tensor inversion package for small earthquakes monitored by densy array.

The NaNDC can be installed by conda:

conda env create -f envs.yml

Then activate codna environment:

conda activate nandc

cd ./example

For Linux:

bash ./run_example.sh

or:

python ./run_example.py

For windows:

python run_example.py

#must specified parameters

--event_list: 'catalog file'

--data_fir: 'folders contain observations'

--vmodel: '1-D velocity model'

--save_dir: './inversion_results'

--weight: '1/1/1'

--npts_v: '21'

--npts_w: '45'

--npts_kappa: '73'

--npts_sigma: '37'

--npts_h: '21'

--tightness: '0.9'

--uniformity: '0.9'

Lichun Yang, Ruijia Wang; NaNDC: Full Moment Tensor Inversion and Uncertainty Analysis for Large‐N Monitored Small Earthquakes. Seismological Research Letters 2024; doi: https://doi.org/10.1785/0220240219