The Beiersdorfer Induced Seismicity Activity Center
Helicorders:    Meander Seismograms

What does a helicorder look like?
In a vehicle parked on OH 169 in front of the ViOH Vienna, Ohio seismometer station,  and using an online laptop to observe the helicorder in real time,  observations were made of trucks, cars, a school bus, even a C-130 landing at the airport.  All of these were recorded in the helicorder from the seismometer station.  The below helicorder is the result.