Reliable seismic hazard studies depend on having a robust earthquake catalog. The longer the extent of the catalog and the more reliable the parameters are, the better it is for those doing seismic hazard analysis. There are two kinds of earthquake catalog: one is the instrumental or recent catalog and the other is the historical catalog. In this study, instrumental or recent catalog refers to the time when seismic monitoring existed while historical refers to the pre-instrumental period.
In the content of this work package, it is decided to build a new catalog for the middle-east region by combining the original ones, and using our opinions about catalog reliability to eliminate duplicate records when an earthquake was listed in more than one catalog. Since attenuation relations, completeness, and magnitude-conversion rules all vary regionally, we decided to build two catalogs: a moment-magnitude (Mw) catalog and a body-wave-magnitude (Mb) and surface-wave-magnitude (Ms) catalog.
Work Package 1 is led by Dr. Mehdi Zare, from IIEES, Iran.
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