Cold Brook Sand and Gravel blasting, seismic vs. infrasound

Sutton

seismic

~3 secs

Sutton

infrasound

16x5 = 80

Notes:

The Canterbury site is a Shake, but not Boom, and doesn't record sound, my Shake and Boom records both. Sound takes about five seconds to travel one mile, so it should (and does) take about eighty seconds to reach me. Very cool!