ATM 200 - Natural Disasters

Ch 3 – Earthquake Geology

and Seismology

Monday, 5 October 2015

Daily Announcements:

1) Exam #1 grades are posted on Blackboard.

2) EQ Homework Assignment to be completed by Friday, Oct. 16.

Song #1: “Jump In the Line” by Harry Belafonte

Song #2: “Whole Lotta Shakin’ Goin’ On” by Jerry Lee Lewis

Text Source Today: Chapter 3 (p. 59-65)

Notes Template

· Seismology PDF DOC

· Seismic Body Waves: P-waves, S-waves

· Seismic Surface Waves: Love waves, Rayleigh waves

· Seismograms: EQ Location

· Seismograms: Richter Scale and EQ Magnitude

Study Guide Material (Stacey’s Guide) :

1) What is Seismology?

2) How do seismometers record an earthquake?

3) Become familiar with all the various types of seismic waves.

4) How does one use seismograms to locate the origin of an EQ?

5) What is the minimum number of recording stations necessary in (4) above?

6) What is the “Richter scale?” Is there an upper and/or lower limit to the scale?

7) What is the difference in shaking amplitude between a Richter 4 & 5 EQ? 4 & 6?

8) What is the difference in energy released between a Richter 4 & 5 EQ? 4 & 6?

9) Know how to use a nomograph to determine the Richer scale magnitude

from a seismograph recording (Fig. 3.24).