Civil Thinking

Locating EQs:

  • Since S waves travel at a relatively constant fraction of the P wave velocity, we use the time elapsed between the P and S wave arrivals to estimate distance.
  • A constant distance from a seismometer plots as a circle of that radius.
  • At least three seismometers at different locations -> three circles -> one point where they all intersect.

Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Leave a Reply

Your email address will not be published. Required fields are marked *