Simplified machine-learning driven earthquake detection, location, and analysis
Project description
easyQuake
Simplified machine-learning driven earthquake detection, location, and analysis in one easy-to-implement python package.
On most systems you should be able to simply:
pip install easyQuake
Or if you need to tweak something, like the number of GPUs in gpd_predict, you could:
git clone https://github.com/jakewalter/easyQuake.git
cd easyQuake
pip install .
If you find this useful, please cite:
Walter et al. (in review), easyQuake: Putting machine learning to work for your regional seismic network or local earthquake study
Requirements
This code leverages machine-learning for earthquake detection. You should have suitable hardware to run CUDA/Tensorflow, which usually means some sort of GPU. This has been tested on servers with nvidia compute cards and modest multi-core desktop with consumer gaming nvidia card (e.g. Geforce 1050 Ti). The event-mode can be run efficiently enough on a laptop.
- Requires obspy, keras, tensorflow-gpu, basemap
- Easiest installation path includes installing Anaconda python, "conda install tensorflow-gpu" installs cudatookkit and tensorflow
Running easyQuake
The example runs easyQuake for a recent M6.5 earthquake in Idaho
from easyQuake import download_mseed
from easyQuake import daterange
from datetime import date
from easyQuake import combine_associated
from easyQuake import detection_continuous
from easyQuake import association_continuous
from easyQuake import magnitude_quakeml
from easyQuake import simple_cat_df
import matplotlib.pyplot as plt
maxkm = 300
maxdist=300
lat_a = 42
lat_b = 47.5
lon_a = -118
lon_b = -111
start_date = date(2020, 3, 31)
end_date = date(2020, 4, 1)
project_code = 'idaho'
project_folder = '/data/id'
for single_date in daterange(start_date, end_date):
print(single_date.strftime("%Y-%m-%d"))
dirname = single_date.strftime("%Y%m%d")
download_mseed(dirname=dirname, project_folder=project_folder, single_date=single_date, minlat=lat_a, maxlat=lat_b, minlon=lon_a, maxlon=lon_b)
detection_continuous(dirname=dirname, project_folder=project_folder, project_code=project_code, single_date=single_date, machine=True,local=True)
association_continuous(dirname=dirname, project_folder=project_folder, project_code=project_code, maxdist=maxdist, maxkm=maxkm, single_date=single_date, local=True)
cat, dfs = combine_associated(project_folder=project_folder, project_code=project_code)
cat = magnitude_quakeml(cat=cat, project_folder=project_folder,plot_event=True)
cat.write('catalog_idaho.xml',format='QUAKEML')
catdf = simple_cat_df(cat)
plt.figure()
plt.plot(catdf.index,catdf.magnitude,'.')
License
This project is licensed under the MIT License - see the LICENSE.md file for details
Acknowledgments
- code was reused from obspy (https://github.com/obspy/obspy/wiki), gpd (https://github.com/interseismic/generalized-phase-detection), PhasePApy (https://github.com/austinholland/PhasePApy), and others
- would not be possible without the robust documentation in the obspy project
- this work was developed at the Oklahoma Geological Survey
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