# During the semester - PowerPoint PPT Presentation

During the semester

1 / 8
During the semester

## During the semester

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
##### Presentation Transcript

1. During the semester • Introductions • Basics of earthquakes • History and Recording • Damaging Earthquakes and understanding seismic exposure • Undertake loss assessment • Seismic analysis; and design and detailing (RCC and Masonry)

2. Body wave magnitude (Mb) • Fastest way of recording earthquake magnitude • Used in recording Long distance earthquake • Records amplitude of the ‘P’ wave (Compression Wave): Wave Velocity: 5 - 8 km/s • Mb = log(A/T) + σ(D,h) • A: Maximum Amplitude • T: Time, σ(D,h)= Callibration for Depth and Height factors

3. Some points on History, Recording and Monitoring of earthquakes • Note Scales (Magnitude and Intensity) are continuously evolving and changing • Most popular Magnitude scale is Moment Magnitude (Mw) scale • Similar scales exist. Such as Surface waves • Cautiously use the source internet • Quote website name or person/agency for the work done

4. Damaging Earthquakes - 2010 Representative map showing significant earthquake events. Image: Quakeschool 2010 (January 2010 to Jun 2010) http://quakeschool.blogspot.com

5. Damaging Earthquakes - 2010

6. Parameters which signify a damaging Earthquake event • Magnitude (Mw) • Intensity • Timing • Life Loss • Property Loss • Business Interruption/Rebuilding

7. Assignment 2: Significant Earthquake Event • Add Missing Significant Damaging Event to the list given in the slide • Which one do you think was the most important earthquake event in 2010 • Describe in terms of intensity, losses, opportunity, and other parameters as we discuss Collect Individual Handouts

8. Discuss • Book reading? • Submit assignment No. 1 • Organizing a visit to seismic monitoring stations of Institute of Seismological Research (ISR)