Eew_motion_graphic.gif
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Summary
| Description |
English:
How earthquake early warning systems work. Upon a fault rupture, fast primary and slow secondary waves travel through the ground. The P-wave information is collected from seismometers and analyzed at a central station, and alerts on estimated magnitude, intensity, epicenter, and time til shaking are transmitted via sirens, phones, computers, television, radio, and other warning systems.
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| Source | https://www.usgs.gov/media/images/earthquake-early-warning-basics |
| Author | USGS |
Licensing
|
This image is in the
public domain
in the United States because it only contains materials that originally came from the
United States Geological Survey
, an agency of the
United States Department of the Interior
. For more information, see
the official USGS copyright policy
.
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