TY - JOUR
T1 - The evolution of seismicity at Parkfield
T2 - observation, experiment and a fracture-mechanical interpretation
AU - Henderson, Jeremy
AU - Main, Ian
AU - Meredith, Philip
AU - Sammonds, Peter
PY - 1992/1/1
Y1 - 1992/1/1
N2 - We compare observations of local seismicity sequences with acoustic emissions during rock fracture, and find similarities in the distribution of event magnitudes which lead us to consider a model of seismicity which is characterized by fracture-growth laws derived from the field of fracture-mechanics and which include both negative and positive feedback processes. We find that the model predicts the observed negative correlation between the seismic b-value and the fractal dimension of the earthquake epicentres. The simple short-range interactions described in the model give rise to a system with a long-range order, similar to current models of critical processes.
AB - We compare observations of local seismicity sequences with acoustic emissions during rock fracture, and find similarities in the distribution of event magnitudes which lead us to consider a model of seismicity which is characterized by fracture-growth laws derived from the field of fracture-mechanics and which include both negative and positive feedback processes. We find that the model predicts the observed negative correlation between the seismic b-value and the fractal dimension of the earthquake epicentres. The simple short-range interactions described in the model give rise to a system with a long-range order, similar to current models of critical processes.
UR - http://www.scopus.com/inward/record.url?scp=0027009242&partnerID=8YFLogxK
U2 - 10.1016/0191-8141(92)90022-O
DO - 10.1016/0191-8141(92)90022-O
M3 - Article
AN - SCOPUS:0027009242
SN - 0191-8141
VL - 14
SP - 905
EP - 913
JO - Journal of Structural Geology
JF - Journal of Structural Geology
IS - 8-9
ER -