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Seismic Shaker rattles your browser window whenever a strong earthquake occurs near you.
This add-on hourly checks the U.S. Geological Survey's feed of recent M 2.5+ earthquakes and shakes your active browser window should an earthquake happen anywhere within 500km of your current location.
Also included are a simulation feature and a link to earthquake tips.
This page is part of the LegacyCollector website.
Disclaimer: All material on this site is property of their respective owners and available under
open licenses to the best of our knowledge. If you are an author and would like anything removed,
then please write an e-mail to legacy [at] collector dot org.