Content-Length: 123521 | pFad | http://www.usgs.gov/media/images/p-waves-and-s-waves-crust
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
P Waves alternately compress and stretch the crustal material parallel to the direction they are propagating. S Waves cause the crustal material to move back and forth perpendicular to the direction they are travelling.
Public Domain.
Fetched URL: http://www.usgs.gov/media/images/p-waves-and-s-waves-crust
Alternative Proxies:
