Earthquakes - I) II) Earthquakes a. Definition: A sudden...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
I) Earthquakes a. Definition: A sudden motion or trembling in the Earth caused by the abrupt release of slowly accumulated stress. II) Seismology a. A study of “shaking”. b. Location of quake i. Hypocenter on fault where the quake starts. ii. Epicenter 1. Point on the earth’s surface directly above the focus. c. Depth of quakes. i. Shallow 1. Less that 70 km ii. Intermediate 1. 70-350km iii. Deep iv. More than 350km 1. Deepest was 684 km. Fiji Islands (07/16/1977) d. Seismograph i. Recovered from EQ ii. 3 parts needed to build a seismograph. 1. Fixed base 2. Inert Mass 3. Recording Device iii. Seismograph 1. A record of EQ energy e. Waves i. Primary waves [body wave]
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
1. Compression waves 2. Push/pull waves 3. Fastest ii. Secondary waves [body wave] 1. Shearing waves 2. Up/down movements iii. Love Waves 1. Has a horizontal motion (shear) transverse to the direction of propagation. 2. Shaker 3. Felt close to epicenter iv. Rayleigh Waves 1. Has a retrograde elliptical motion 2. Roller
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/07/2008 for the course GEOLOGY 101 taught by Professor Wareham during the Spring '08 term at CSU Fullerton.

Page1 / 5

Earthquakes - I) II) Earthquakes a. Definition: A sudden...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online