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The Determination of Earthquake Hazard Parameters Deduced from Bayesian Approach for Different Seismic Source Regions of Western Anatolia

机译:贝叶斯方法推导的西安纳托利亚西部不同震源区地震危险性参数的确定

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The Bayesian method is used to evaluate earthquake hazard parameters of maximum regional magnitude (M (max)), beta value, and seismic activity rate or intensity (lambda) and their uncertainties for the 15 different source regions in Western Anatolia. A compiled earthquake catalog that is homogenous for M (s) a parts per thousand yen 4 was completed during the period from 1900 to 2013. The computed M (max) values are between 6.00 and 8.06. Low values are found in the northern part of Western Anatolia, whereas high values are observed in the southern part of Western Anatolia, related to the Aegean subduction zone. The largest value is computed in region 10, comprising the Aegean Islands. The quantiles of functions of distributions of true and apparent magnitude on a given time interval [0,T] are evaluated. The quantiles of functions of distributions of apparent and true magnitudes for future time intervals of 5, 10, 20, 50, and 100 years are calculated in all seismogenic source regions for confidence limits of probability levels of 50, 70, and 90 %. According to the computed earthquake hazard parameters, the requirement leads to the earthquake estimation of the parameters referred to as the most seismically active regions of Western Anatolia. The Aegean Islands, which have the highest earthquake magnitude (7.65) in the next 100 years with a 90 % probability level, is the most dangerous region compared to other regions. The results found in this study can be used in probabilistic seismic hazard studies of Western Anatolia.
机译:贝叶斯方法用于评估西安那托利亚西部15个不同震源区的最大地震震级参数,最大区域震级(M(max)),β值,地震活动速率或强度(lambda)及其不确定性。在1900年至2013年期间,完成了对M(s)千分之一日元4均质的地震目录。计算出的M(max)值在6.00和8.06之间。在西安纳托利亚北部发现低值,而在西安纳托利亚南部发现与爱琴海俯冲带有关的高值。在包括爱琴海群岛的区域10中计算出最大值。对给定时间间隔[0,T]上真实和视在量级的分布函数的分位数进行了评估。在所有震源区域中,对于概率水平为50%,70%和90%的置信度极限,将计算未来5年,10年,20年,50年和100年时间间隔的表观和真实震级分布函数的分位数。根据计算出的地震危险参数,需求导致对参数的地震估计,这些参数被称为西安纳托利亚西部地震活动最活跃的区域。与其他地区相比,在接下来的100年中,爱琴海群岛的地震烈度最高(7.65),概率为90%,是最危险的地区。这项研究中发现的结果可用于西安纳托利亚的概率地震灾害研究。

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