Where in the U.S. is there measurable evidence that the continents are moving relative to one another?

Question

I just need to know where...

Answer 1

In California, in the San Andreas fault.

Answer 2

The most obvious one is the San Andreas fault.
Elsewhere in the world, we have the Himalaya mountain range which is changing in height due to continental drift.
There's also a new sea being formed in Ethiopia.

I don't understand the relevance of the U.S. in your question. As the US is on one of the continents, the evidence can't be "in the US", but relative to it.

The Australian contient is moving relative to the African continent.

Answer 3

All over the place, specifically anytime geologists go to fault line areas (Iceland; San Andreas,California; Kyoto, Japan; Eritrea in Africa, they can actually measure the change in distance created over time, which overall is very slow but very measurable, so for instance, New York and London are a couple of inches further apart than they were in the 1910's.

San Diego is an inch or two closer to San Francisco and Seattle.

Answer 4

The Rocky Mountains is also an evidence that shows the continents are moving. The Pacific Plate subducts underneath the North American Plate, and when the Pacific Plate reached certain depth, it was melted and create volcanoes in the Rocky Mountains, and thats how the mountain range is created.