Tsunamis are seismic sea waves caused by earthquakes that occur under the ocean. During a tsunami, large waves can flood nearby coasts, causing damage to life and property.

In 2014, an earthquake of magnitude 8.2 occurred off the coast of Chile, sending six-foot-tall waves toward coastal towns and cities. The first waves took approximately 45 minutes to reach land.

Which of the following actions can help reduce the loss of life from a tsunami?

A. using satellite imaging to detect hurricanes at sea

B. using radar imaging to detect tornadoes on land

C. monitoring volcanic activity to detect undersea eruptions

D. monitoring seismic activity to detect undersea earthquakes