Research studying earthquake precursors via analyzing fore-shocks

This is the important part for analysis

>"That’s why the new quake catalog presented such a tantalizing opportunity. Published earlier this year in Science, that colossal effort pinpointed 1.81 million earthquakes that shook Southern California between 2008 and 2017, all the way down to magnitude 0.3."

- Searching for hidden earthquakes in Southern California

> "This effort resulted in a catalog with 1.81 million earthquakes, a 10-fold increase, which provides important insights into the geometry of fault zones at depth, foreshock behavior and nucleation processes, and earthquake-triggering mechanisms. The rich detail resolved in this type of catalog will facilitate the next generation of analyses of earthquakes and faults."