Seismograms of the M4.8 earthquake in Yellowstone March 30, 2014

Seismograms of the magnitude 4.8 earthquake that occurred in Yellowstone on March 30, 2014, as recorded by seismometers at station YNR near Norris Geyser Basin.  Top: Seismogram recorded on the accelerometer, which stayed on scale during the shaking.  Bottom: “Clipped” seismogram recorded on the broadband seismometer, which went off scale during the shaking.