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首页> 外文期刊>Geoscience Letters >Bodrum–Kos (Turkey–Greece) Mw 6.6 earthquake and tsunami of 20 July 2017: a test for the Mediterranean tsunami warning system
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Bodrum–Kos (Turkey–Greece) Mw 6.6 earthquake and tsunami of 20 July 2017: a test for the Mediterranean tsunami warning system

机译：2017年7月20日博德鲁姆-科斯（土耳其-希腊）6.6级地震和海啸：对地中海海啸预警系统的测试

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Abstract Various Tsunami Service Providers (TSPs) within the Mediterranean Basin supply tsunami warnings including CAT-INGV (Italy), KOERI-RETMC (Turkey), and NOA/HL-NTWC (Greece). The 20 July 2017 Bodrum–Kos (Turkey–Greece) earthquake (Mw 6.6) and tsunami provided an opportunity to assess the response from these TSPs. Although the Bodrum–Kos tsunami was moderate (e.g., runup of 1.9?m) with little damage to properties, it was the first noticeable tsunami in the Mediterranean Basin since the 21 May 2003 western Mediterranean tsunami. Tsunami waveform analysis revealed that the trough-to-crest height was 34.1?cm at the near-field tide gauge station of Bodrum (Turkey). Tsunami period band was 2–30?min with peak periods at 7–13?min. We proposed a source fault model for this tsunami with the length and width of 25 and 15?km and uniform slip of 0.4?m. Tsunami simulations using both nodal planes produced almost same results in terms of agreement between tsunami observations and simulations. Different TSPs provided tsunami warnings at 10?min (CAT-INGV), 19?min (KOERI-RETMC), and 18?min (NOA/HL-NTWC) after the earthquake origin time. Apart from CAT-INGV, whose initial Mw estimation differed 0.2 units with respect to the final value, the response from the other two TSPs came relatively late compared to the desired warning time of ~?10?min, given the difficulties for timely and accurate calculation of earthquake magnitude and tsunami impact assessment. It is argued that even if a warning time of ~?10?min was achieved, it might not have been sufficient for addressing near-field tsunami hazards. Despite considerable progress and achievements made within the upstream components of NEAMTWS (North East Atlantic, Mediterranean and Connected seas Tsunami Warning System), the experience from this moderate tsunami may highlight the need for improving operational capabilities of TSPs, but more importantly for effectively integrating civil protection authorities into NEAMTWS and strengthening tsunami education programs.
机译：摘要地中海盆地内的各种海啸服务提供者（TSP）提供海啸预警，包括CAT-INGV（意大利），KOERI-RETMC（土耳其）和NOA / HL-NTWC（希腊）。 2017年7月20日的博德鲁姆-科斯（土耳其-希腊）地震（6.6兆瓦）和海啸为评估这些TSP的响应提供了机会。尽管博德鲁姆-科斯海啸为中度（例如1.9？m加速），对财产的破坏很小，但这是自2003年5月21日地中海西部海啸以来地中海盆地首次出现海啸。海啸波形分析显示，在博德鲁姆（土耳其）的近场潮汐测量站，波谷高度为34.1？cm。海啸时期为2-30分钟，高峰期为7-13分钟。我们为此海啸提出了一个源断层模型，其长和宽分别为25和15？km，均匀滑移为0.4？m。根据海啸观测和模拟之间的一致性，使用两个节点平面进行的海啸模拟产生的结果几乎相同。在地震发生后的10分钟（CAT-INGV），19分钟（KOERI-RETMC）和18分钟（NOA / HL-NTWC），不同的TSP发出海啸预警。除了CAT-INGV（其初始Mw估计值相对于最终值相差0.2个单位）之外，与其他一些TSP的响应相比，理想的警告时间约为10分钟，而响应时间相对较晚，这是因为难以及时准确地进行计算地震震级和海啸影响评估。有人认为，即使达到〜10分钟的警告时间，也可能不足以解决近场海啸的危险。尽管NEAMTWS（东北大西洋，地中海和连通海啸海啸预警系统）上游组成部分取得了重大进展并取得了成就，但这次中度海啸的经验可能凸显出需要提高TSP的运行能力，但更重要的是要有效整合民航组织保护当局加入NEAMTWS，并加强海啸教育计划。

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