What Earthquakes that originate beneath the ocean floor produce huge tidal waves are called?

Earthquakes that originate beneath the ocean floor and produce huge tidal waves are called tsunamis. These seismic events displace large volumes of water, generating powerful waves that can travel across entire ocean basins. When they reach shallow coastal areas, their height can dramatically increase, leading to devastating impacts on coastal communities. Tsunamis are often triggered by underwater earthquakes, volcanic eruptions, or landslides.