K2 Strong Motion Accelerograph
Detailed Description
The K2 as it would be set up at an actual digital site. The metal frame is used to keep things from bumping up against the seismometer while it is in operation. The K2 is crooked in its frame for a specific reason. It must be aligned in a northerly direction so that the North-South and East-West ground motions are indeed what are sensed by the device.
Sources/Usage
Public Domain.