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The use of earthquake rate changes as a stress meter at Kilauea volcano.
MedLine Citation:
PMID:  11100724     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Stress changes in the Earth's crust are generally estimated from model calculations that use near-surface deformation as an observational constraint. But the widespread correlation of changes of earthquake activity with stress has led to suggestions that stress changes might be calculated from earthquake occurrence rates obtained from seismicity catalogues. Although this possibility has considerable appeal, because seismicity data are routinely collected and have good spatial and temporal resolution, the method has not yet proven successful, owing to the non-linearity of earthquake rate changes with respect to both stress and time. Here, however, we present two methods for inverting earthquake rate data to infer stress changes, using a formulation for the stress- and time-dependence of earthquake rates. Application of these methods at Kilauea volcano, in Hawaii, yields good agreement with independent estimates, indicating that earthquake rates can provide a practical remote-sensing stress meter.
Authors:
J Dieterich; V Cayol; P Okubo
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Nature     Volume:  408     ISSN:  0028-0836     ISO Abbreviation:  Nature     Publication Date:  2000 Nov 
Date Detail:
Created Date:  2000-12-01     Completed Date:  2000-12-28     Revised Date:  2003-10-31    
Medline Journal Info:
Nlm Unique ID:  0410462     Medline TA:  Nature     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  457-60     Citation Subset:  -    
Affiliation:
US Geological Survey, Menlo Park, California 94025, USA. jdieterich@usgs.gov
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