Earthquakes in the San Francisco Bay Area

1. Earthquakes in the San Francisco Bay Area Sheryl Braile, Happy Hollow School West Lafayette, IN Larry Braile, Purdue University braile@purdue.edu, www.eas.purdue.edu/~braile CSTA Convention, Oct. 2006, San Francisco, CA http://web.ics.purdue.edu/~braile/edumod/bayarea/BayAreaEQs.ppt http://web.ics.purdue.edu/~braile/edumod/bayarea/bayareaNew.htm

2. 2004 USGS Map: Earthquakes and Faults in the San Francisco Bay Area

8. http://wrgis.wr.usgs.gov/docs/gump/zulanger/bayarea/landsat.html

9. Old version (1990 map/satellite image): http://web.ics.purdue.edu/~braile/edumod/bayarea/bayarea.htm New version (2004 map): http://web.ics.purdue.edu/~braile/edumod/bayarea/bayareaNew.htm

10. The 1906 San Francisco Earthquake (M~7.8) Photo by G.K. Gilbert

11. The 1906 San Francisco Earthquake (M~7.8) ~3 m right lateral offset on the San Andreas fault

12. The 1906 San Francisco Earthquake (M~7.8) San Andreas fault at Earthquake park near Tomales Bay (road to Point Reyes) http://www.seed.slb.com/en/scictr/watch/seismology/pt_reyes.htm Today 1906

13. The 1906 San Francisco Earthquake (M~7.8) San Andreas fault at Earthquake park near Tomales Bay (road to Point Reyes) http://www.seed.slb.com/en/scictr/watch/seismology/pt_reyes.htm Damaged Barn (subsequently razed) Offset Fence

14. The 1906 San Francisco Earthquake (M~7.8) San Francisco after the Earthquake and fire.

15. The 1906 San Francisco Earthquake (M~7.8) San Francisco after the Earthquake and fire.

16. The 1906 San Francisco Earthquake (M~7.8) De-railed train.

18. The 1906 San Francisco Earthquake (M~7.8) Comparison of fault lengths for selected significant events on the San Andreas.

19. San Andreas Fault

20. San Andreas Fault – A Right-Lateral Strike-Slip Fault What is the relative motion? Why is it called right-lateral?

21. The 1906 San Francisco Earthquake (M~7.8) MM Intensity Map

22. The 1906 San Francisco Earthquake (M~7.8) MM Intensity Map

23. The 1906 San Francisco Earthquake (M~7.8) MM Intensity Map

24. The 1906 San Francisco Earthquake (M~7.8) MM Intensity Map

25. The 1906 San Francisco Earthquake (M~7.8) San Francisco bay area geology.

26. The 1906 San Francisco Earthquake (M~7.8) Near-surface sediments shear wave velocity – an indicator of site response for earthquake shaking.

27. The 1989 Loma Prieta Earthquake (M7.0) Earthquake damage.

28. San Francisco bay area geology.

29. http://www.abag.ca.gov/cgi-bin/pickmapx.pl Site response map

31. Earthquakes in California Nevada area 1973 – 2006 M3+ The Seismic Eruption software http://www.geol.binghamton.edu/faculty/jones/

32. Earthquakes in California Nevada area 1973 – 2006 M3+

33. Earthquakes in California Nevada area 1973 – 2006 M3+ Close-up of Northern CA area Northern San Andreas Fault (area that slipped in 1906)

34. Earthquakes in San Francisco Bay area 1973 – 2006 M1+ Plotted with Seismic Eruption

35. Earthquakes in San Francisco Bay area 1973 – 2006 M1+ Plotted with Seismic Eruption (bayarea.hy4 file, 3434 events)

36. Earthquakes in San Francisco Bay area from significant U.S. earthquakes catalog 1805 - 1989 Plotted with Seismic Eruption

37. Digital satellite images of the San Francisco Bay area and major faults http://www.sfbayquakes.org/

42. http://pubs.usgs.gov/gip/2006/21/gip-21.pdf Earthquake resources

43. Earthquake hazards and damage Soft first story failure

44. Building shifted off foundation

45. Falling objects

46. Falling objects

47. 2002 Nisqually EQ

48. Olive View Hospital, 1971 San Fernando Earthquake

49. Olive View Hospital, 1971 San Fernando Earthquake

50. Dec. 26, 2003 M6.6 Earthquake, Bam, Iran, ~80% of buildings destroyed