Tsunamis- results of underwater earthquake- Tidal Wave
Actually s and p waves traveling from the focus
P wave does damage since s wave disappears right away.
Damage done by a tsunami is not just water- it is the also the large
Amount of sediment that washes up and the huge amount of
Erosion that exists as the water washes everything away.
Typically we can be warned of a tsunami because the earthquake
Occurs and we can expect a tidal wave to come once we
Determine that the epicenter is below the water.