The New Excuse being used:

"Oklahoma has seen a steep rise in the frequency of earthquakes in the area, according to a joint statement by both USGS and OGS. Residents have experienced more than 200 measuring at least a magnitude 3.0 since the beginning of 2009.

Holland said the USGS and OGS are conducting joint research on the increase in the frequency of earthquakes in the area.

It is not clear if the quakes are being triggered by human activity or are occurring naturally, Holland said, although he said suggested changes to lake levels may be involved."

[link to abcnews.go.com]