Yuma Seismometer Waveforms

These images are updated every five minutes. The Yuma broadband vertical is located in the basement on the floor slab, close to a 0.6 x 0.9 m hole containing the main test pier.  The Yuma has a broadband velocity response which is generally flat to frequency between 50 seconds and 30Hz.  

Data are recorded and uploaded as images by a Webtronics 16-bit digitizer, controlled by WinSDR and running on a Raspberry Pi 2.

High-gain Long-period Channel -- Distant Quakes

Lower-gain Short-period Channel -- Local and Regional Quakes