This is an unusual measurement which is unexplained by current models. This chart [0] helps show why and when waves are not superficial to only surface of the o

This is an unusual measurement which is unexplained by current models. This chart [0] helps show why and when waves are not superficial to only surface of the ocean. [0] https://en.wikipedia.org/wiki/Microseism#/media/File:Interference_of_water_waves_with_bottom_topography,_relevant_for_microseism_generation.gif https://en.wikipedia.org/wiki/Microseism#/media/File:Interfe...