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Title: Universal Quake Statistics: From Compressed Nanocrystals to Earthquakes

Slowly-compressed single crystals, bulk metallic glasses (BMGs), rocks, granular materials, and the earth all deform via intermittent slips or “quakes”. We find that although these systems span 12 decades in length scale, they all show the same scaling behavior for their slip size distributions and other statistical properties. Remarkably, the size distributions follow the same power law multiplied with the same exponential cutoff. The cutoff grows with applied force for materials spanning length scales from nanometers to kilometers. The tuneability of the cutoff with stress reflects “tuned critical” behavior, rather than self-organized criticality (SOC), which would imply stress-independence. A simple mean field model for avalanches of slipping weak spots explains the agreement across scales. It predicts the observed slip-size distributions and the observed stressdependent cutoff function. In conclusion, the results enable extrapolations from one scale to another, and from one force to another, across different materials and structures, from nanocrystals to earthquakes.
Authors:
 [1] ;  [2] ;  [3] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [4] ;  [5] ;  [5] ;  [6] ;  [6] ;  [7] ;  [8] ;  [8] ;  [9] ;  [10] ;  [11] more »;  [2] « less
  1. Los Angeles, CA (United States)
  2. Univ. of Illinois, Urbana, IL (United States). Department of Physics
  3. Helmholtz-Zentrum Potsdam (HZP), (Germany). German Research Centre for GeoSciences; Univ. of Southern California, Los Angeles, CA (United States)
  4. Duke Univ., Durham, NC (United States)
  5. Univ. of Amsterdam (Netherlands)
  6. Bucknell Univ., Lewisburg, PA (United States)
  7. Johns Hopkins Univ., Baltimore, MD (United States)
  8. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  9. Univ. of Tennessee, Knoxville, TN (United States)
  10. Univ. of Southern California, Los Angeles, CA (United States)
  11. Helmholtz-Zentrum Potsdam (HZP), (Germany). German Research Centre for GeoSciences
Publication Date:
OSTI Identifier:
1241133
Grant/Contract Number:
FE-0011194; FE-0008855
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 5; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Research Org:
Univ. of Illinois, Urbana, IL (United States). Department of Physic
Sponsoring Org:
USDOE; USDOE Office of Fossil Energy (FE)
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES