Minnesota has had earthquakes in the last century.  Roughly how many?

An aquifer is considered “confined” if:

Which of the following is the more likely trigger of a mass wasting event in Minnesota?

During the period between large earthquakes along a locked fault segment, how does the material near the fault respond to continuous tectonic plate motion away from the fault?

Mass wasting contributes little to landscape evolution?

If faults had no friction whatsoever, large earthquakes would still happen?

The global groundwater depletion rate (use minus replacement) is estimated at approximately:

How do typical seismic waves compare to the human audio frequency range?

What is specific yield?

In the seismic moment equation (Mo = μDA), what physical property of the fault zone does the variable ‘A’ represent?