5.6 on the Richter Scale.

Oklahoma has had nine earthquakes in the last 24 hours. The first one occurred Saturday morning at 2:30, and apparently we had a bunch of little ones all day after that. Then last night at about 10:30 we had one that registered 5.6, which is the largest in the state's history. I'd been in a few earthquakes living in California, but just little ones, so this was big comparatively. People forget parts of central Oklahoma is on a fault line. I remembered last night.