碩士 / 國立中央大學 / 水文與海洋科學研究所 / 105 / Taiwan is located on the west side of the Circum-Pacific Seismic Zone in which numerous of the catastrophic earthquake tsunamis were originated. As a result, the tsunami hazard evaluation is one of the important issues. In order to understand the tsunami threat to Taiwan in the surrounding waters, “Seismic-Tsunami Relationship” (STR) was developed to visualize any impact of possible tsunami hazards. “Cornell Multi-grid Coupled Tsunami Model” (COMCOT) was applied to calculate the Greens Function of each unit tsunami. The calculated results are arranged at the maximum wave height as IIA distribution. The corresponding magnitude MW of the result in the equivalent intensity was replaced with the “Source-Scale Relationship”. Through the STR, The tsunami threat can be quickly assessed in study areas. In addition to excluding risk-free or low-risk areas, an accurate distribution of the tsunami sensitive area can be obtained.
The Quanzhou Earthquake in 1604 and the Yaeyama Earthquake in 1771 which both generated tsunamis and were recorded in their local area, while there is no relevant documentary record in Taiwan. Scenarios analysis and STR method were applied to understand the events in this study as well. According to the results, The western coast of Taiwan along Taipei to Tainan is facing the tsunami threat from the Taiwan Strait; the northeast Taiwan (Yilan region) is sensitive to the tsunami threat in the eastern waters of Taiwan. As for the eastern Taiwan, Hualien and Taitung are facing the tsunami threat from the Ryukyu Trench and Yap Trench, respectively.
| Identifer | oai:union.ndltd.org:TW/105NCU05761005 |
| Date | January 2017 |
| Creators | Han Wu, 吳函 |
| Contributors | Tso-Ren Wu, 吳祚任 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 171 |
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