Bozeman MT seismometers lose signal at start of CME
Posted by Lowell on October 25, 2001 at 02:29:15:

The CME arrival is well timed by the loss of seismogram signal at the Bozeman station.
This loss continues from about 3 minutes. See:
http://mbmgquake.mtech.edu/earthworm/wavef_disp/BOZ_BHZ_US.2001102500.gif
http://mbmgquake.mtech.edu/earthworm/wavef_disp/BOZ_SPZ_US.2001102500.gif
http://mbmgquake.mtech.edu/earthworm/wavef_disp/BOZ_LPZ_US.2001102500.gif