ABSTRACT A near-field tsunami inundation forecast method (NearTIF) for the Pacific coast of Central America is developed and tested on the basis of the 1992 Nicaragua tsunami earthquake case. The appropriate source model of the 1992 Nicaragua earthquake, estimated using the W-phase inversion with a depth dependent rigidity curve from a previous study, is used as a reference model to test the proposed NearTIF method. The tsunami inundation along the Pacific coast of Nicaragua is computed from the reference model of the 1992 Nicaragua earthquake. The tsunami inundation obtained using the NearTIF method matches the tsunami inundations computed from the reference model. The tsunami heights and the tsunami inundation of the 1992 Nicaragua tsunami surveyed by a previous study are roughly matched by the tsunami inundations obtained using the NearTIF method in this study. Although the computational time for the tsunami inundation from the reference source model is about 95 min, the computational time plus the database search time for the NearTIF method is approximately 2–4 min. The method presented in this study can be used as a near-real time tsunami inundation forecast method for the Pacific coast of Central America.

中文翻译：

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中美洲近实时海啸淹没预报：1992 年尼加拉瓜海啸地震的案例研究

摘要 基于 1992 年尼加拉瓜海啸地震案例，开发并测试了中美洲太平洋沿岸近场海啸淹没预报方法 (NearTIF)。1992 年尼加拉瓜地震的适当震源模型（使用 W 相反演和先前研究中的深度相关刚度曲线进行估计）被用作参考模型来测试提议的 NearTIF 方法。尼加拉瓜太平洋沿岸的海啸淹没是根据 1992 年尼加拉瓜地震的参考模型计算得出的。使用 NearTIF 方法获得的海啸淹没与根据参考模型计算的海啸淹没相匹配。先前研究调查的1992年尼加拉瓜海啸的海啸高度和海啸淹没情况与本研究中使用NearTIF方法获得的海啸淹没情况大致匹配。尽管参考源模型的海啸淹没计算时间约为 95 分钟，但 NearTIF 方法的计算时间加上数据库搜索时间约为 2-4 分钟。本研究中提出的方法可用作中美洲太平洋沿岸的近实时海啸淹没预报方法。