Seismic art?

I'm still trying to figure out the meaning of this seismo-artistic installation:

The Parkfield Interventional EQ Fieldwork (PIEQF) was a geologically interactive, kinetic earthwork that was temporarily installed in the remote township of Parkfield, Central California. This machine controlled earthwork ran autonomously for 91 days between the 18th August and 16th November 2008. PIEQF was triggered by near real-time reported Californian earthquakes from Magnitude M 0.1 and above.

This conceptual machine earthwork was a feedback loop between the seismicity of California and a physical and mechanical representation of all Californian seismic events. Each time a Californian earthquake occurred, an array of 5/8 inch steel rods attached to an earthquake shake table oscillated and resonated reflecting the dynamic nature of the Californian landscape. On average 30-60 seismic events occur throughout California daily.

While I explore, maybe you can enlighten us?