The seismic waves from yesterday's magnitude 5.0 earthquake on the San Jacinto fault (?) outside San Bernardino, rolled through Arizona and were picked up by the Arizona Integrated Seismic Network, managed by AZGS, NAU, ASU and UA.
The seismogram at right is from the Wickenburg AZ station as recorded by IRIS on the Rapid Earthquake Viewer. There are 8 stations in the network.