Abstract
Tsunami is among the most devastating natural hazards phenomenon responsible for significant loss of life and property throughout history. The Sultanate of Oman and United Arab Emirates are among the Indian Ocean countries that were subjected to one confirmed tsunami in November 27, 1945 due to an Mw 8.1 earthquake in Makran Subduction Zone. In this study, we present preliminary deterministic tsunami hazard assessment for the coasts of Diba Oman and Diba Al-Emirates, which are located on the western coast of the Oman Sea. The tsunami vulnerability of these cities increases due to the construction of many critical infrastructures and urban concentration along their coasts. Therefore, tsunami hazard assessment is necessary to mitigate the risk on the socio-economic system and sustainable developments. The major known source of tsunamis able to impact both coasts of Oman and United Arab Emirates is the Makran Subduction Zone (MSZ) which extends for approximately 900 km. The deterministic approach uses specific scenarios considering the maximum credible earthquakes occurring in the MSZ and computes the ensuing tsunami impact in the coasts of the study area. The maximum wave height graphs and inundation maps are obtained for tsunami scenarios caused by 8.8 earthquake magnitude in eastern MSZ and 8.2 magnitude from western MSZ. The Mw8.8 eastern MSZ causes a maximum inundation distance of 447 meters and a maximum flow depth of 1.37 meter. Maximum inundation distance larger than 420 meters occurs due to the Mw8.2 western MSZ scenario. For this scenario, numerical simulations show a maximum flow depth of about 2.34 meters.
Highlights
A tsunami is a series of water waves that propagate from the location of the tsunamigenic source toward the shore
The term tsunami can be referred to the water waves caused by rapid vertical displacement of the water column in open oceans or inland water bodies.Tsunamis can be severely destructive to the infrastructure, human life, and the economy of the coastal areas
The main objective of this research study is to assess the tsunami hazard posed by the Probable Maximum Tsunami (PMT) at the coastal areas of Diba Oman and Diba United Arab Emirates (UAE) (Fig. 1) and to determine whether any protective measures are required
Summary
A tsunami is a series of water waves that propagate from the location of the tsunamigenic source toward the shore. The term tsunami can be referred to the water waves caused by rapid vertical displacement of the water column in open oceans or inland water bodies.Tsunamis can be severely destructive to the infrastructure, human life, and the economy of the coastal areas. They may inundate large onshore areas based upon the local bathymetry and topography. Tsunamis are generated by submarine landslides, by pyroclastic flows and caldera collapses during volcanic eruptions, by meteorite impacts, and by snow avalanches These long-period tsunami waves can travel very far from the source without much attenuation. The main objective of this research study is to assess the tsunami hazard posed by the Probable Maximum Tsunami (PMT) at the coastal areas of Diba Oman and Diba UAE (Fig. 1) and to determine whether any protective measures are required
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