A new two-step approach is proposed to quantify the uncertainties of the seismicity rate ν(M) estimated by Gutenberg-Richter relations of seismic area source zones in logic tree-driven probabilistic seismic hazard analysis. The first step makes use of the possibility that the uncertainties of the Gutenberg-Richter parameters α and β (or a and b), expressed by their covariance matrix C(α, β) (or...

We present a new three-dimensional inventory of the southern San Francisco Bay area faults and use it to calculate stress applied principally by the 1989 M = 7.1 Loma Prieta earthquake and to compare fault seismicity rates before and after 1989. The major high-angle right-lateral faults exhibit a different response to the stress change than do minor oblique (right-lateral/thrust) faults. Seismi...

Abstract This chapter deals with all the precious documented recently published and unpublished studies that address seismic situation earthquakes in State of Kuwait. Kuwait is geographically geologically situated northeastern part Arabian Peninsula. In addition to being close famous Zagros belt earthquakes, local sources inside make it always vulnerable earthquakes. We will review instrumental...

The seismic data taken in California and Japan are mapped to growing random networks. It is shown in the undirected network picture that these earthquake networks are scale-free and small-work networks with the power-law connectivity distributions, the large values of the clustering coefficient, and the small values of the average path length. It is demonstrated how the present network approach...

IV Concepts and Calculational Tools 6 IV.1 Renormalization, Scaling and the Role of Small Earthquakes in Models of Triggered Seismicity 6 IV.2 Universality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 IV.3 Intermittent Periodicity and Chaos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 IV.4 Turbulence . . . . . . . . . . . . . . . . ....

To develop spatially continuous seismicity models (earthquake probability distributions) from a given earthquake catalog, the method of kernel estimation has been suggested. Kernel estimations with a global (spatially invariant) bandwidth deal poorly with earthquake hypocenter distributions that have different spatially local features. For example, a typical earthquake catalog has several areas...