It’s Instrumental!

2021 Jun 28th

What is a seismograph and how does it work?

Modified from IRIS one-pager Fact Sheet A seismograph is a device for measuring the movement of the earth, and consists of a ground-motion detection sensor, called a seismometer, coupled with a recording system. A simple seismometer that is sensitive to up-down motions of the earth can be understoo... Continue Reading

2021 Jun 10th


by Dr. Wendy Bohon, IRIS Seismometers are instruments that measure the motion of the ground and they are most commonly used to measure earthquakes. However, they can detect ground motion caused by just about anything that makes the ground, or the structure where they’re located, move and shak... Continue Reading

2021 Mar 19th

What is Raspberry Shake?

By Mike Hotchkiss, Raspberry Shake Traditional seismographs are complicated to set up and expensive to maintain, making them impractical for use in some remote locations and in countries lacking the resources to install seismic networks. The development of low-cost, easy to use seismographs, like R... Continue Reading