[1] Large mass wasting occurrences are often triggered by sudden events such as earthquakes or oversteepening of the continental slope.
[1] Many alluvial fans also contain critical oil and natural gas reservoirs, making them key points for the collection of seismic data.
[1] Beyond the continental rise stretches the abyssal plain, which lies on top of basaltic oceanic crust and spans the majority of the seafloor.
[2] The abyssal plain hosts life forms which are uniquely adapted to survival in its cold, high pressure, and dark conditions.
[1] The flatness of the abyssal plain is interrupted by massive underwater mountain chains near the tectonic boundaries of Earth's plates.