An engineering team is tasked with placing a limited number of deep-ocean tsunami sensors. To maximize effectiveness, where should they prioritize placement?

In the deepest parts of the ocean, as deep water creates larger waves.

Near known subduction zones where oceanic plates are converging.

Equally spaced across the entire ocean basin to ensure total coverage.

Very close to heavily populated coastlines for the fastest possible warning.

Which of the following events would pose the LEAST risk of generating a major tsunami?

A magnitude 8.2 earthquake in a deep ocean trench where plates converge.

A magnitude 7.8 earthquake at an offshore subduction zone.

A magnitude 6.5 earthquake on a continental plate far from the coast.

A magnitude 7.5 earthquake near a chain of volcanic islands at a plate boundary.

The time of day the earthquake occurred.

The temperature of the water at the epicenter.

Whether the earthquake occurred at a subduction zone.

The mineral composition of the surrounding seafloor.