T249 Deformation in Continental Interiors from the Rock Record to Modern Intraplate Seismicity (Posters)

Wednesday, 18 October 2023
8:00 AM - 5:30 PM
Hall B

THE IMPACT OF TECTONIC SETTING ON MACHINE LEARNING APPROACHES FOR EARTHQUAKE PREDICTION

Paper number: T249-4
Program: Technical Sessions
Time: 8:00 AM – 5:30 PM

Authors

Abstract

In prior decades the concept of using mathematical methods to predict earthquakes was considered infeasible. Recent advances in machine learning and predictive modeling offer promising avenues to potentially realize earthquake prediction. In order to test the viability of machine learning methods, experiments were made with earthquake datasets from Kansas and Puerto Rico. The two datasets were chosen for the distinct differences in their tectonic settings. Kansas has few major faults, with a largely inactive subsurface, this produced a smaller dataset with a few large clusters. Puerto Rico is complexly faulted, with an extremely active tectonic setting, this produced a larger dataset with a large number of small clusters. In order to test the effectiveness of these two datasets for machine learning and prediction they were run through four different machine learning algorithms including an LSTM model, Bi-LSTM model, Bi-LSTM model with attention, as well as a transformer algorithm. Not only were the four different machine learning methods compared against each other for accuracy but also the datasets as well. Preliminary findings show that the Kansas dataset averages around 33% more effective in all machine learning algorithms than the Puerto Rico dataset. This is likely due to the tectonic settings of the two regions, since the Kansas dataset has less overall data, and earthquakes are concentrated in a few large clusters. Further research is warranted to fully understand the underlying factors governing the relationship between tectonic conditions and machine learning efficacy in earthquake prediction.

Geological Society of America Abstracts with Programs. Vol. 55, No. 6

doi: 10.1130/abs/2023AM-395803

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