👉 Seaquakes are a type of earthquake that occur on the ocean floor. They are caused by the movement of tectonic plates, which is a process in which Earth's crust moves under the surface. In a seaquake, the ground shakes violently and can cause buildings to collapse or even sink underwater. Seaquakes can be felt up to 10 miles (16 kilometers) away from an earthquake center. They are often associated with earthquakes that occur in the Pacific Ocean, which is