Earthquake Statistical Parameters Analysis and Regional Variations of March 02, 2017 Adıyaman-Samsat Earthquake (Ml = 5.7) by Using its Aftershocks
In this study, using the aftershocks that occurred after the March 02, 2017 Adıyaman-Samsat Earthquake (Ml = 5.7) statistical analyzes of b-value and aftershock decay parameter p-value were performed. 1345 aftershocks compiled from the catalogs of the Kandilli Observatory and Earthquake Research Ins...
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| Format: | Article |
| Language: | English |
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Artvin Coruh University
2022-01-01
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| Series: | Doğal Afetler ve Çevre Dergisi |
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| Online Access: | http://dacd.artvin.edu.tr/tr/pub/issue/68003/883680 |
| _version_ | 1826830129217667072 |
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| author | Nihan HOSKAN |
| author_facet | Nihan HOSKAN |
| author_sort | Nihan HOSKAN |
| collection | DOAJ |
| description | In this study, using the aftershocks that occurred after the March 02, 2017 Adıyaman-Samsat Earthquake (Ml = 5.7) statistical analyzes of b-value and aftershock decay parameter p-value were performed. 1345 aftershocks compiled from the catalogs of the Kandilli Observatory and Earthquake Research Institute (KOERI) and the Disaster & Emergency Management Authority (AFAD) were homogenized according to the local magnitude Ml. Afterwards, the completeness magnitude Mc=1.6 was obtained with the moving time window approach and using maximum likelihood method, b-value was calculated as 0.768±0.03 for the whole region. This value is close to the expected 1 for b for tectonic earthquakes and is consistent with the Gutenberg-Richter relation. With modified Omori's Law p=0.91±0.05, c=0.041±0.030 and K=25.6±3.21 were calculated for the entire region. The p-value, which is thought to be related to crustal heterogeneity, heat flux and tectonic deformation, is less than 1, reflecting the relatively slow aftershock decay rate. Regional variation maps of b- and p-parameters were prepared by taking 450 earthquakes at each node point with 0.01O x 0.01O grid interval. The b-value was high in the northeast-southwest line of the March 02, 2017 (Ml=5.7) earthquake and low in the south-southeast of this earthquake. Besides the low b-value, the occurrence of the 24 April 2018 (Ml=5.4) earthquake in the region may foreshadow the increase in regional stress. Examining the regional variation of the p-value, the high p-value is in the north-northeast of the Adıyaman-Samsat earthquake and is almost consistent with the deformation region on the InSAR map given in literature. |
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| issn | 2528-9640 |
| language | English |
| last_indexed | 2025-02-16T09:29:27Z |
| publishDate | 2022-01-01 |
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| series | Doğal Afetler ve Çevre Dergisi |
| spelling | doaj.art-dfb9f8f3de004f168e761a485b80e1222025-02-03T03:12:14ZengArtvin Coruh UniversityDoğal Afetler ve Çevre Dergisi2528-96402022-01-01811424https://doi.org/10.21324/dacd.883680Earthquake Statistical Parameters Analysis and Regional Variations of March 02, 2017 Adıyaman-Samsat Earthquake (Ml = 5.7) by Using its AftershocksNihan HOSKAN0https://orcid.org/0000-0001-5507-9818İstanbul Üniversitesi-Cerrahpaşa, Mühendislik Fakültesi, Jeofizik Mühendisliği Bölümü, 34320, İstanbulIn this study, using the aftershocks that occurred after the March 02, 2017 Adıyaman-Samsat Earthquake (Ml = 5.7) statistical analyzes of b-value and aftershock decay parameter p-value were performed. 1345 aftershocks compiled from the catalogs of the Kandilli Observatory and Earthquake Research Institute (KOERI) and the Disaster & Emergency Management Authority (AFAD) were homogenized according to the local magnitude Ml. Afterwards, the completeness magnitude Mc=1.6 was obtained with the moving time window approach and using maximum likelihood method, b-value was calculated as 0.768±0.03 for the whole region. This value is close to the expected 1 for b for tectonic earthquakes and is consistent with the Gutenberg-Richter relation. With modified Omori's Law p=0.91±0.05, c=0.041±0.030 and K=25.6±3.21 were calculated for the entire region. The p-value, which is thought to be related to crustal heterogeneity, heat flux and tectonic deformation, is less than 1, reflecting the relatively slow aftershock decay rate. Regional variation maps of b- and p-parameters were prepared by taking 450 earthquakes at each node point with 0.01O x 0.01O grid interval. The b-value was high in the northeast-southwest line of the March 02, 2017 (Ml=5.7) earthquake and low in the south-southeast of this earthquake. Besides the low b-value, the occurrence of the 24 April 2018 (Ml=5.4) earthquake in the region may foreshadow the increase in regional stress. Examining the regional variation of the p-value, the high p-value is in the north-northeast of the Adıyaman-Samsat earthquake and is almost consistent with the deformation region on the InSAR map given in literature.http://dacd.artvin.edu.tr/tr/pub/issue/68003/883680march 022017 adıyaman samsat earthquakespatial distribution of b-and p-valuesgutenberg-richter relationomori law |
| spellingShingle | Nihan HOSKAN Earthquake Statistical Parameters Analysis and Regional Variations of March 02, 2017 Adıyaman-Samsat Earthquake (Ml = 5.7) by Using its Aftershocks Doğal Afetler ve Çevre Dergisi march 02 2017 adıyaman samsat earthquake spatial distribution of b-and p-values gutenberg-richter relation omori law |
| title | Earthquake Statistical Parameters Analysis and Regional Variations of March 02, 2017 Adıyaman-Samsat Earthquake (Ml = 5.7) by Using its Aftershocks |
| title_full | Earthquake Statistical Parameters Analysis and Regional Variations of March 02, 2017 Adıyaman-Samsat Earthquake (Ml = 5.7) by Using its Aftershocks |
| title_fullStr | Earthquake Statistical Parameters Analysis and Regional Variations of March 02, 2017 Adıyaman-Samsat Earthquake (Ml = 5.7) by Using its Aftershocks |
| title_full_unstemmed | Earthquake Statistical Parameters Analysis and Regional Variations of March 02, 2017 Adıyaman-Samsat Earthquake (Ml = 5.7) by Using its Aftershocks |
| title_short | Earthquake Statistical Parameters Analysis and Regional Variations of March 02, 2017 Adıyaman-Samsat Earthquake (Ml = 5.7) by Using its Aftershocks |
| title_sort | earthquake statistical parameters analysis and regional variations of march 02 2017 adiyaman samsat earthquake ml 5 7 by using its aftershocks |
| topic | march 02 2017 adıyaman samsat earthquake spatial distribution of b-and p-values gutenberg-richter relation omori law |
| url | http://dacd.artvin.edu.tr/tr/pub/issue/68003/883680 |
| work_keys_str_mv | AT nihanhoskan earthquakestatisticalparametersanalysisandregionalvariationsofmarch022017adıyamansamsatearthquakeml57byusingitsaftershocks |