| | UCLA - Earth and Space Sciences - Didier Sornette, Scientific Prediction of Catastrophies: A New Approach |
 | | We thus explored how the SOC concept can help understand the observed earthquake clustering on relatively narrow fault domains and the phenomenon of induced seismicity by human activity such as water impoundment in artificial lakes, gas and ore extraction. |
| | We found that both pore pressure changes and mass transfers leading to incremental deviatoric stresses of less than 10 atmospheric pressure are sufficient to trigger seismic instabilities in the uppermost crust with magnitude ranging up to $7$ in otherwise historically aseismic areas. |
| | We argued that these observations are in accord with the SOC hypothesis as they show that a significant fraction of the crust is not far from instability and can thus be made unstable by minute perturbations. |
| www.ess.ucla.edu /faculty/sornette/catastrophies.asp (10272 words) |
