Most seamounts are not yet to be studied, or even mapped. Bathymetry and satellite altimetry are two technologies used to collect data. There have been instances where naval vessels have collided with uncharted seamounts. The Muirfield seamount is named after the ship that struck it in 1973. However, the greatest danger from seamounts are flank collapses. As they get older, water eats away at their sides. This causes landslides which, in turn, may cause massive tsunamis.