Earthquake Recorded on the Harmonograph at the NYSF
A 2.5 Magnitude Earthquake is Captured in a Harmonogram!
Earthquake Documented for the first time with a Pendulum Drawing Toy!
Things were really rockin’ at the 2011 New York State Fair, and I mean that literally! The big East Coast Earthquake of 2011, which had an epicenter in Virginia and registered 5.8 on the Richter scale, occurred at 1:53 PM on August 23, 2011, just a couple of days before The Fair opened.
That earthquake was felt by many people here in
The fair is a normally a very active venue, with large rides banging to a stop, daily parades, and boisterous concerts going on right outside the Science and Technology Building in
I lifted the pen and stopped the drawing as soon as the waviness ceased and recorded the date and time (in front of several witnesses) and set the harmonogram aside for later examination and. It was Thursday, August 25, 2011 at 4:57 in the afternoon - opening day of The New York State Fair!
When I got home later that evening, I went online to the United States Geological Survey (USGS) website and looked to see if there was any earthquake activity that corresponded to the date and time I had recorded, and I was excited to find that there was indeed an earthquake, and I was even more astounded to discover that this event wasn’t an aftershock from the big Virginia earthquake at all, but a unique 2.5 magnitude earthquake event that occurred only about 115 miles away right here in New York State!
The harmonogram below is a scan of the actual drawing that was in progress when the Earthquake struck and you can observe the waviness that the line recorded which continued on for 12-14 seconds. The data sheet from the USGS website contains detailed information about the earthquake event which I recorded in the harmonogram.
I’m sure that I have recorded other earthquake activity with my harmonograph pendulums, but this is the first one that I have ever associated with a specific seismic event.
Harmonogram created during an Earthquake.
USGS Earthquake Response Map
For more fascinating information about earthquakes, visit the United States Geological Survey (USGS) website.