Earthquakes and tsunamis have in common that they modify Earth's surface.
Earthquakes are caused by the sudden release of energy in the Earth's crust, which can lead to ground shaking, landslides, and other changes to the landscape. Tsunamis, which are typically triggered by underwater earthquakes, can cause significant coastal erosion, flooding, and other alterations to both land and marine environments. While earthquakes mainly occur on land or underwater, and tsunamis occur in the ocean, their shared impact on modifying Earth's surface is a key aspect of their relationship.