Ocean or large lake. Earthquakes The eruption of a volcano, and other underwater blasting. Landslide glaciers and to skid the other distracting meteors. Plain water, whether above or below could cause a tsunami was.
Ocean or large lakes Earthquake Volcanic eruptions and other underwater explosions, landslides, glaciers slipping. Falling meteorites and other distractions Whether above or below water Are likely to cause a tsunami at all.
Ocean or lake large earthquakes, volcanic eruptions, and other underwater detonation landslide glacier was meteor showers and interference. North or underwater. All may cause a tsunami is all