Novice
How does an elk shake the earth?
A nearby seismograph station records an elk running. Even a sensitive station cannot detect this type of surface thumping at a distance. This was recorded by a seismograph station on Mount St. Helens, WA.
Seismograms of common events are compiled to show the different seismic signals recorded by ground-shaking events. Seismograms can record everything from nearby earthquakes to earthquakes on the other side of the world, plus anything that shakes the ground near the seismograph station like people walking, elk running, rocks falling and helicopters landing.
We encourage the reuse and dissemination of the material on this site as long as attribution is retained. To this end the material on this site, unless otherwise noted, is offered under Creative Commons Attribution (CC BY 4.0) license
