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School Seismology

School Seismology. Dave Waltham Department of Earth Sciences Royal Holloway University of London. Japan, March 11, 2011. RHUL Recording. P-waves, S-Waves & Mexican Waves. Surface Waves. RHUL Recording. 05:56:37. ~10 mins. P. S. Surface Waves. 86.03.

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School Seismology

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  1. School Seismology Dave Waltham Department of Earth Sciences Royal Holloway University of London

  2. Japan, March 11, 2011

  3. RHUL Recording

  4. P-waves, S-Waves & Mexican Waves

  5. Surface Waves

  6. RHUL Recording 05:56:37 ~10 mins P S Surface Waves

  7. 86.03 10:10. Hence, earthquake at 05:56:37 – 00:10:10 = 05:46:27

  8. Epicentral Distance RHUL Japan 86.03

  9. www.bgs.ac.uk/schoolSeismology

  10. With Plate Boundaries

  11. TexasEpicentral Distance=90°

  12. Conclusions • Off-shore Japan • Occurred at 05:46:27 • Large!

  13. www.usgs.gov

  14. Large Foreshock Wednesday 9/3/11 Friday 11/3/11

  15. Aftershocks

  16. Earthquake Seismology Greece 14 Feb 2008 Magnitude 6.7 With aftershock China 12 May 2008 Magnitude 7.9 87 652 fatalities Herefordshire 26 Oct 2008 Magnitude 3.6 RHUL’s Seismometer

  17. Frequencies 1 Hz 0.1 Hz

  18. Conclusions • School equipment can be used to detect and characterize distant earthquakes. • We don’t know how to predict earthquakes. Can the next generation of scientists find a way? • Until then, rigorous building codes save lives.

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