Adjustments related to plate-tectonic activity cause earthquakes from Washington to New Mexico,from Montana to California,and at other points throughout the West.

Question

Quizplus · Accepted Answer

Plate tectonic activity is the main cause of earthquakes in the western United States. The boundary between the North American and Pacific plates runs through this region, resulting in frequent seismic activity.

Adjustments Related to Plate-Tectonic Activity Cause Earthquakes from Washington to New