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Earthquake Seismology

By Prof. Mohit Agrawal   |   IIT-ISM Dhanbad
Learners enrolled: 659   |  Exam registration: 68
ABOUT THE COURSE:

Earthquakes are fascinating natural phenomena for the students who seek to understand the Earth's structure and composition. This course aims to introduce students to these phenomena through an introduction to seismology, a fundamental aspect of modern earth sciences. Seismology is defined as the study of earthquakes and related phenomena, or the study of elastic waves propagating through the Earth. By integrating techniques and data from physics, mathematics, and geology, seismology provides a remarkably detailed picture of the Earth's interior.

This subject is highly valuable for mineralogists and petrologists studying the Earth's composition, students of tectonics interested in lithospheric processes, geologists exploring the nature and evolution of the crust, engineers concerned with seismic hazards, and planetologists studying the evolution of terrestrial planets.

Upon completing this course, students will be able to explain the general concepts of earthquake seismology and its societal implications. They will understand the main components of seismology—source, path, and receiver. They will be able to demonstrate how earthquake mechanisms are derived from waveform data and discuss the basics of seismic attenuation and how earthquake observations lead to improved Earth models.

In this NPTEL course, I will provide PowerPoint presentations, assignments, and homework, along with lecture notes. We will refer to the textbook "An Introduction to Seismology, Earthquakes, and Earth Structure" by Seth Stein and Michael Wysession, published by Blackwell. The provided videos, lecture notes, and PPTs will be sufficient to understand every topic covered in this course.

INTENDED AUDIENCE: Anyone from geophysics, physics, engineering, geology, earthquake engineering, earth sciences, geosciences, earth and atmospheric science having interest in learning

PREREQUISITES: Basic knowledge of Physics and Mathematics

INDUSTRY SUPPORT: Any company/industry working in the field of seismic hazard, oil and gas exploration will recognize/value this online course
Summary
Course Status : Completed
Course Type : Core
Language for course content : English
Duration : 12 weeks
Category :
  • Civil Engineering
Credit Points : 3
Level : Undergraduate/Postgraduate
Start Date : 22 Jul 2024
End Date : 11 Oct 2024
Enrollment Ends : 05 Aug 2024
Exam Registration Ends : 16 Aug 2024
Exam Date : 27 Oct 2024 IST

Note: This exam date is subject to change based on seat availability. You can check final exam date on your hall ticket.


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Course layout

Week 1: Basic seismological theory, waves on a string, stress and strain, seismic waves.
Week 2: Snell’s law, Plane wave reflection and transmission.
Week 3: Surface waves, dispersion.
Week 4: Normal modes of the earth.
Week 5: Refraction seismology, Reflection seismology.
Week 6: Seismic waves in a spherical earth, Body wave travel time studies.
Week 7: Anisotropic earth structure, Attenuation and Anelasticity.
Week 8: Composition of the mantle and core.
Week 9: Earthquakes, focal mechanisms, moment tensors.
Week 10: Brief on Earthquake geodesy.
Week 11: Source parameters, Earthquake statistics.
Week 12: Seismology and Plate tectonics, Spreading centers, Subduction zones.

Books and references

An Introduction to Seismology, Earthquakes and Earth Structure, Seth Stein and Michael Wysession, First published 2003 by Blackwell Publishing Ltd.

Instructor bio

Prof. Mohit Agrawal

IIT-ISM Dhanbad
Prof. Mohit Agrawal is an associate professor in the department of Applied Geophysics at Indian Institute of Technology (Indian School of Mines), Dhanbad. His primary research interests and expertise comprise various aspects of earthquake seismology and seismic hazard analysis. Dr. Agrawal has been working towards finding answers to geophysical problems that lend themselves to, or can benefit from, statistical and probabilistic approaches. He obtained his PhD degree from Baylor University, USA, where he successfully defended his thesis titled “Multi Objective Optimization in Seismology” in 2016 under the supervision of Prof. Jay Pulliam (Baylor) and Prof. Mrinal K. Sen (Univ. of Texas at Austin). Prior to his PhD, Agrawal earned a Master of Science and Technology (M.Sc. Tech.) degree in Applied Geophysics from Indian School of Mines, Dhanbad in 2011. He is an active member of professional geophysical and geological societies, including the American Geophysical Union, the Indian Geophysical Union, and the Seismological Society of America. During his PhD at Baylor, Agrawal was awarded a student research grant of US$2000 from the Gulf Coast Association of Geological Societies (GCAGS) for his research proposal titled "Receiver Functions and Surface Wave Dispersion Modeling of the Crust and Upper Mantle beneath Texas’ Gulf Coast". In 2017, he was granted funding for a total of Rs. 43 Lakhs in the form of an “Early Career Research Award” from SERB to underwrite the deployment of broadband seismic stations on the Shillong Plateau. Recently, in 2020, he was granted funding for a total of Rs. 20 Lakhs in the form of a “Core Research Grant Award” to develop algorithm for joint inversion of multiple datasets. He was also awarded with “MATRICS” award to develop a technique to efficiently generate HVSR curves for seismic site characterization. During his PhD at Baylor he worked with colleagues to install and operate a 420-km-long deployment of 22 broadband seismic stations across the Texas/Gulf of Mexico passive margin. During his tenure at IIT(ISM), he has supervised ten M.Tech. (Earthquake Science and Engineering) and thirty one M.Sc. Tech (Applied Geophysics) students. Three students have finished their PhDs under his supervision and he is guiding five PhD students currently. Dr. Agrawal has attended several international and national conferences including those of the European Geophysical Union (EGU), American Geophysical Union (USA), Society of Exploration Geophysicists (USA), Seismological Society of America, U.S. National Nuclear Security Agency (NNSA) in Albuquerque (New Mexico), and the Indian Geophysical Union Meeting (India). Agrawal has engaged in geoscience research at the University of Texas at Austin in Austin, TX; University of Wyoming in Laramie, WY; Colorado State University in Fort Collins, CO; and Baylor University in Waco, TX.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 
27 October 2024 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Kharagpur .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team


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