DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Machine Learning Reveals the State of Intermittent Frictional Dynamics in a Sheared Granular Fault

Journal Article · · Geophysical Research Letters

Seismogenic plate boundaries are posited to behave in a similar manner to a densely packed granular medium, where fault and block systems rapidly rearrange the distribution of forces within themselves, as particles do in slowly sheared granular systems. Machine learning is used to show that statistical features of velocity signals from individual particles in a simulated sheared granular fault contain information regarding the instantaneous global state of intermittent frictional stick-slip dynamics. We demonstrate that combining features built from the signals of more particles can improve the accuracy of the global model and discuss the physical basis behind the decrease in error. We show that the statistical features such as median and higher moments of the signals that represent the particle displacement in the direction of shearing are among the best predictive features. We demonstrate here novel insights into the applications of machine learning in studying frictional processes occurring in geophysical systems.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1544741
Report Number(s):
LA-UR--19-22300
Journal Information:
Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 13 Vol. 46; ISSN 0094-8276
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (44)

On the micromechanics of slip events in sheared, fluid-saturated fault gouge: Stick-Slip Dynamics in Saturated Gouge journal June 2017
Machine Learning Predicts Laboratory Earthquakes: MACHINE LEARNING PREDICTS LAB QUAKES journal September 2017
Estimating Fault Friction From Seismic Signals in the Laboratory journal February 2018
Cohesion-Induced Stabilization in Stick-Slip Dynamics of Weakly Wet, Sheared Granular Fault Gouge journal March 2018
Potential Energy as Metric for Understanding Stick–Slip Dynamics in Sheared Granular Fault Gouge: A Coupled CFD–DEM Study journal April 2018
On measuring skewness and kurtosis journal September 2007
Empirical comparison of tree ensemble variable importance measures journal February 2011
Evolution of b-value during the seismic cycle: Insights from laboratory experiments on simulated faults journal January 2018
Influence of rolling friction on single spout fluidized bed simulation journal October 2012
New Theory of the Earth book January 2007
Earthquake Catalog‐Based Machine Learning Identification of Laboratory Fault States and the Effects of Magnitude of Completeness journal December 2018
Machine Learning Can Predict the Timing and Size of Analog Earthquakes journal February 2019
PhaseLink: A Deep Learning Approach to Seismic Phase Association journal January 2019
Grain Friction Controls Characteristics of Seismic Cycle in Faults With Granular Gouge journal July 2019
Earthquakes and friction laws journal January 1998
A simple analytic theory for the statistics of avalanches in sheared granular materials journal March 2011
Similarity of fast and slow earthquakes illuminated by machine learning journal December 2018
Continuous chatter of the Cascadia subduction zone revealed by machine learning journal December 2018
Locating induced earthquakes with a network of seismic stations in Oklahoma via a deep learning method journal February 2020
Universal Quake Statistics: From Compressed Nanocrystals to Earthquakes journal November 2015
Do Fluids Modify the Stick-Slip Behavior of Sheared Granular Media? conference July 2017
Force cycles and force chains journal January 2010
Intermittent Granular Dynamics at a Seismogenic Plate Boundary journal September 2017
Sounds of Failure: Passive Acoustic Measurements of Excited Vibrational Modes journal May 2018
Convolutional neural network for earthquake detection and location journal February 2018
Stick-Slip as a Mechanism for Earthquakes journal August 1966
California Earthquakes: Why Only Shallow Focus? journal June 1970
Source Parameters for Stick-Slip and for Earthquakes journal January 1973
Machine learning for data-driven discovery in solid Earth geoscience journal March 2019
On dense granular flows journal August 2004
XGBoost: A Scalable Tree Boosting System conference January 2016
Additive logistic regression: a statistical view of boosting (With discussion and a rejoinder by the authors) journal April 2000
Additive logistic regression: a statistical view of boosting (With discussion and a rejoinder by the authors) journal April 2000
Models, algorithms and validation for opensource DEM and CFD-DEM journal January 2012
Generalized Seismic Phase Detection with Deep Learning journal August 2018
Machine Learning in Seismology: Turning Data into Insights journal November 2018
Pairwise Association of Seismic Arrivals with Convolutional Neural Networks journal January 2019
Frequency of earthquakes in California* journal October 1944
pdp: An R Package for Constructing Partial Dependence Plots journal January 2017
Sounds of Failure: Passive Acoustic Measurements of Excited Vibrational Modes text January 2016
Estimating Fault Friction from Seismic Signals in the Laboratory text January 2017
Generalized Seismic Phase Detection with Deep Learning text January 2018
PhaseLink: A Deep Learning Approach to Seismic Phase Association text January 2018
On dense granular flows text January 2003

Cited By (3)

Machine Learning Reveals the Seismic Signature of Eruptive Behavior at Piton de la Fournaise Volcano journal February 2020
Grain Friction Controls Characteristics of Seismic Cycle in Faults With Granular Gouge journal July 2019
Machine Learning Reveals the Seismic Signature of Eruptive Behavior at Piton de la Fournaise Volcano text January 2019