Parkfield Interventional EQ Fieldwork

The Parkfield Interventional EQ Fieldwork also known as PIEQF [1] can be seen as the seminal work of New Zealand born installation and performance artist D.V.

This early 21st century example of land art was installed temporarily in the remote township of Parkfield,[2] Central California.

A geologically interactive installation, this machine earthwork operated autonomously for a total of 91 days between 18 August and 16 November 2008.

Local contractors Frank Parlot and John Jamrog used a bulldozer and excavator to displace 125 cubic yards of earth on 9 June 2008 from the site.

Extreme hot weather, natural dust devils, software development and financial constraints pushed the system switch on date to 18 August 2008.