Tsunami hazard in the Eastern Mediterranean Basin (EMB) has attracted attention following three tsunamis in this basin since 2017 namely the July 2017 and October 2020 Turkey/Greece and the May 2020 offshore Crete Island (Greece) tsunamis. Unique behavior is seen from tsunamis in the EMB due to its comparatively small size and confined nature which causes several wave reflections and oscillations. Here, we studied the May 2020 event using sea level data and by applying spectral analysis, tsunami source inversion, and numerical modeling. The maximum tsunami zero-to-crest amplitudes were measured 15.2 cm and 6.5 cm at two near-field tide gauge stations installed in Ierapetra and Kasos ports (Greece), respectively. The dominant tsunami period band was 3.8–4.7 min. We developed a heterogeneous fault model having a maximum slip of 0.64 m and an average slip of 0.28 m. This model gives a seismic moment of 1.13 × 10¹⁹ Nm; equivalent to M_w 6.67. We observed three distinct wave trains on the wave record of the Ierapetra tide gauge: the first and the second wave trains carry waves with periods close to the source period of the tsunami, while the third train is made of a significantly-different period of 5–10 min.

自2017年以来，该盆地发生三场海啸，即2017年7月和2020年10月的土耳其/希腊海啸和2020年5月的克里特岛（希腊）海啸，引发了东地中海盆地（EMB）的海啸灾害。由于EMB相对较小的尺寸和有限的性质，会在EMB中从海啸中看到独特的行为，这会引起多次波反射和振荡。在这里，我们使用海平面数据并通过频谱分析，海啸源反演和数值模拟研究了2020年5月的事件。在分别安装在Ierapetra和Kasos港口（希腊）的两个近场潮汐测量站处，测得的最大海啸零波峰振幅分别为15.2 cm和6.5 cm。海啸占主导地位的时期是3.8-4.7分钟。我们开发了一个最大滑动为0的异构故障模型。64 m，平均滑差为0.28 m。该模型给出的地震矩为1.13×10¹⁹ Nm；相当于M _w 6.67。我们在耶拉派特拉潮汐仪的波记录中观察到三个截然不同的波列：第一波列和第二波列所载波的周期接近海啸的震源周期，而第三波列则由明显不同的5个周期组成–10分钟。