The Effect of Regional Borders when Using the Gutenberg-Richter Model, Case Study: Western Anatolia |
| |
Authors: | Serap Kahraman Türkay Baran ? Aydin Saatçi Müjgan ?alk |
| |
Institution: | (1) Civil Engineering Department, Faculty of Engineering, Dokuz Eylül University, Buca, İzmir, 35160, Turkey;(2) Geophysical Engineering Department, Faculty of Engineering, Dokuz Eylül University, Buca, İzmir, 35160, Turkey |
| |
Abstract: | A probabilistic seismic hazard analysis (PSHA) for Western Anatolia is presented using the Gutenberg-Richter (G-R) frequency-magnitude
relation. Since the modeling is sensitive to the location of seismotectonics boundaries, to use the information content of
the observed earthquake data, as a general rule the borders of the affected area are extended. In this study, the effect of
the region’s definition on the G-R model is debated on the Western Anatolian region, which is one of the most seismically
active and rapidly deforming regions of the world throughout the ages. Calculations are carried out for two subregions and
one combined region as a whole using the seismic catalog from 1900 to 2005. The data sets are determined by the region’s borders
with the parameters computed according to these data sets by the least-squares and maximum likelihood methods, and then future
predictions are estimated via these parameters. Comparing the results with historical earthquake records, most appropriate
regional borders for Western Anatolia are defined, and for this new region G-R model parameters are obtained. |
| |
Keywords: | Earthquake hazard Gutenberg-Richter regional border Western Anatolia |
本文献已被 SpringerLink 等数据库收录! |
|