Effects of completing dataset to assess the intensity value concentrating on Ardekul earthquake (10 May 1997), Iran

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Amini Hamideh

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF GEOPHYSICS Year:2024 | Volume:18 | Issue:1 Page(s): 97-108

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Title

Effects of completing dataset to assess the intensity value concentrating on Ardekul earthquake (10 May 1997), Iran

Author(s)

Amini Hamideh | Issue Writer Certificate

Keywords

Earthquake description

Intensity value

Ardekul Ghaen Earthquake

Iran

Abstract

Earthquake descriptions documented in various reports are one of the most important datasets to assess the macroseismic intensity distribution of an earthquake and preparing different intensity maps. This information consists of building damages and earthquake environmental effects as macroseismic data points (MDPs). Extracting the macroseismic parameters of the earthquake will be possible using these MDPs. Each location with any information can be considered as a point of the intensity map. In this study, Ardekul Ghaen Earthquake (10 May 1997) was selected to show the effect of using complete dataset to assess the Intensity values and prepare the earthquake intensity map. There are several reports for this earthquake. Researchers in different fields in their reports mentioned to various descriptions of this earthquake effects consisting of descriptions on different types of building damages, descriptions on various environmental effects, and information from people who felt the earthquake. For this study, the descriptions published in different reports were collected separately for the cities and the rural areas (MDPs) affected by the earthquake. Totally, about more than 100 locations with various effects from the earthquake were reported for this earthquake. Since the descriptions of all reports were not complete, the Intensity values were assessed using all descriptions reported by different references for each MDPs. As the main dataset of this study is MDPs with their Intensity values, complete descriptions of each MDP reported by different references were considered for reassessing the Intensity values of MDPs. However, the intensity maps were separately prepared for each selected report using their reported MDPs. On the other hands, depending on the reported MDPs, the intensity maps of each report will be different from others. For this study, to show that the effect of completeness of the earthquake reports on estimating the results depends on their datasets, five reports were selected from different reports published. The intensity maps of this earthquake were separately plotted based on each of the selected reports. According to this study, the best report should be the one with more complete information of each MDP affected by the earthquake. It consists of all descriptions related to the building damages or the environmental effects. Thereafter, the earthquake Intensity values can be assessed with more accuracy. Moreover, the intensity map of the selected earthquake will also be plotted with more details. If there are enough MDPs, the macroseismic parameters of the earthquake can be also estimated. More MDPs and complete description for each one, more accuracy and high quality estimations.

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