Today is the 100th anniversary of the earthquake that destroyed San Francisco in 1906. To commemorate the centennial, engineer/artist Ken Goldberg collaborated with composer Randall Packer and San Francisco Ballet principal dancer Muriel Maffre to create a dance, titled Ballet Mori, conducted by the Earth. At the premier performance earlier this month, Maffre danced in response to a musical composition modulated live in real time by the fluctuations of the Earth's movement as measured by a networked seismometer at the Hayward Fault.
Link to project page with video, Link to NPR's Weekend America story, Link to Wired magazine article