[Keith in Iowa]

And?

California has quakes all the time - S. Dakota does not.

[HerrBlucher]

Correct, SD does not have earthquakes “all the time” but they do have them.............

http://earthquake.usgs.gov/earthquakes/states/south_dakota/history.php

[thackney]

But South Dakota does have earthquakes, just not very often. About 1 every 2 years on average but sometimes 5 a year.

http://www3.northern.edu/natsource/EARTH/Earthq1.htm

[tubebender]

South Dakota has had Earthquakes. Everyone thinks time began when they were born...