%20and%20secondary%20(S-waves)%20are%20generated%20in%20earthquakes,%20when%20we%20detect%20these%20at%20stations%20around%20the%20world%20we%20can%20start%20to%20build%20up%20a%20picture%20of%20what%20lies%20beneath%20us.%20Thanks%20for%20watching,%20Lewis%20_%20MY%20PHYSICS%20WEBSITES%20Find%20even%20more%20videos%20organised%20by%20exam%20board%20and%20topic%20at:%20GCSE%20Physics%20Online%20►%20https://www.gcsephysicsonline.com%20A%20Level%20Physics%20Online%20►%20https://www.alevelphysicsonline.com%20MY%20YOUTUBE%20CHANNEL%20Your%20support%20in%20watching%20this%20video%20has%20been%20invaluable!%20To%20contribute%20towards%20the%20free%20videos%20on%20YouTube,%20make%20a%20small%20donation%20at:%20►%20https://www.paypal.me/physicsonline%20FOLLOW%20ME%20►%20https://www.youtube.com/physicsonline?sub_confirmation=1%20►%20https://www.instagram.com/physicsonline/%20►%20https://www.facebook.com/gcseandalevelphysicsonline%20#waves%20#gcsephysics%20#physicsonline)
Primary (P-waves) and secondary (S-waves) are generated in earthquakes, when we detect these at stations around the world we can start to build up a picture of what lies beneath us.
Thanks for watching,
Lewis
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