1 / 21

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.

binta
Télécharger la présentation

School Seismology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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.

More Related