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Comprehensive Study of Earthquakes: History, Impact, and Seismic Analysis

DESCRIPTION

This course provides a comprehensive understanding of earthquakes, exploring their history, recording methods, and the science behind seismic analysis. We will delve into damaging earthquakes, factors affecting seismic exposure, and loss assessment. Students will learn about body wave magnitude, the fastest recording techniques, and the evolving scales for measuring earthquakes, particularly the Moment Magnitude (Mw) scale. Assignments include analyzing significant earthquake events from 2010 and organizing visits to seismic monitoring stations for practical insights.

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Comprehensive Study of Earthquakes: History, Impact, and Seismic Analysis

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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)

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