A tiltmeter on Mauna Loa, used to predict eruptions by measuring very small changes in the profile of the mountain. A tiltmeter is a sensitive inclinometer designed to measure very small changes from the vertical level, either on the ground or in structures.
Mr. Billion - 1977: Filming was done at the Sonoma-Marin Fairgrounds and the Petaluma Speedway. Cujo - 1983: Stephen King's horror flick about a rabies infested St. Bernard featured the Scott Ranch Hills off of Corona Rd. Explorers - 1985: A very young Ethan Hawke and River Phoenix starred in this absurd SciFi movie.
The third season of 30 Days premiered on June 3, 2008. The first episode of the third season, titled Working in a Coal Mine, was filmed in Bolt, West Virginia which is located roughly 18 miles from the city of Beckley, West Virginia, where Spurlock was raised before leaving for New York.