The Coming Pun-ishment (Micah 1:6-16)

The people of Israel are facing the wrath of the Lord that is coming against them.  They will experience this wrath, but what did they do that was so wrong?  Why does the prophet mention a series of place names that are difficult for us to pin on a map?  How do those cities communicate the punishment that is coming?  What is the hope in the midst of the promised punishment?  What could this punishment possibly teach us?