Installing ground-shaking detection instrument
USGS scientist Cordell Johnson points to the Raspberry Shake, a sensitive instrument used to detect ground shaking. Johnson mounted the Raspberry Shake to an aluminum pole which he will then drive into the ground to bury the instrument beneath the tundra. This process will help isolate it from the wind.
Image Dimensions: 898 x 1148
Location Taken: Barter Island, AK, US