ABSTRACT The main characteristics of the tsunamis that occurred in Mexico in the period 2009–2018 and their predominant features are analyzed. During this period there were eleven tsunamis. A total of 54 time series with sea level signals associated with tsunamis were analyzed. In each case a high-pass filter was applied to remove the astronomical tide, and the computation of arrival time, travel times, distance from the source, heights, maximum amplitudes and periods were conducted. A spectral analysis was performed to determine the dominant frequencies for each tsunami and sea level station, and the decay time of the tsunami wave train was computed adjusting an exponential function. The spectral patterns were more similar for each location than for the same tsunami, which was concluded from the qualitative analysis of the spectra and their correlations. The maximum wave height occurs after 1 to 5 hours of the arrival of the first wave for local events, and between 6 to 22 hours for remote events. The characteristic frequencies and behavior for each location were identified and is expected that will be similar in future events, therefore these results may help decision makers in the implementation of risk reduction policies.

中文翻译：

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2009-2018 年墨西哥海岸海啸及其行为

摘要 分析了 2009-2018 年墨西哥发生海啸的主要特征及其主要特征。在此期间，发生了 11 次海啸。对与海啸相关的海平面信号的总共 54 个时间序列进行了分析。在每种情况下，都应用高通滤波器去除天文潮汐，并计算到达时间、旅行时间、距源的距离、高度、最大振幅和周期。进行了频谱分析以确定每个海啸和海平面站的主要频率，并通过调整指数函数计算海啸波列的衰减时间。与同一海啸相比，每个位置的光谱模式更相似，这是从光谱及其相关性的定性分析得出的结论。对于本地事件，最大波高出现在第一波到达后 1 至 5 小时，而对于远程事件，则出现在 6 至 22 小时之间。确定了每个位置的特征频率和行为，并预计在未来事件中将相似，因此这些结果可能有助于决策者实施降低风险的政策。