How Earthquakes are Located and Measured By Jacob and Christian.

Slides:

Advertisements

Similar presentations

Energy Transformation in the form of Seismic Waves

Advertisements

Seismic waves and the shadow zone.  Sudden release of energy in the Earth’s crust and creates seismic waves. Occurs naturally or human induced.

Ch6 Sec2 Earthquakes and Seismic Waves. Key Concepts How does the energy of an earthquake travel through Earth? What are the scales used to measure the.

Section 19.3 – Measuring and Locating Earthquakes

Earthquakes Section 2 Section 2: Studying Earthquakes Preview Key Ideas Recording Earthquakes Locating an Earthquake S-P-Time Method: Finding an Epicenter.

Earthquake Measurement

Ch – Measuring and Locating Earthquakes Essential Questions

Seismology: ●What is Seismology? ●What are Seismic Waves?: Types of Seismic waves ●Where do Earthquakes Happen? ●Why do Earthquakes Happen? ●How is the.

Copyright © 2014 All rights reserved, Government of Newfoundland and Labrador Earth Systems 3209 Unit: 4 The Forces Within Earth Reference: Chapters 4,

Measuring Earthquakes. Seismograph Or seismometer, is an instrument used to detect and record earthquakes.

Studying Earthquakes. Seismology: the study of earthquakes and seismic waves.

LEQ: How are Earthquakes Measured?

Richter and Mercalli Scales

Energy Transformation in the form of Seismic Waves

Chapter 12 Study Notes Earthquakes. 1 A ____ wave is a seismic wave that travels through the _____ of the earth. –body –interior.

8.2 Measuring Earthquakes

Section 2: Studying Earthquakes

Inside Earth Chapter 2 Earthquakes 2.2 Earthquakes and Seismic Waves.

Section 9.6 There are two logarithmic bases that occur so frequently in applications that they are given special names. Common logarithms are logarithms.

Earthquake Measurement 10/23/14

Do Now – In Notebooks 1.In what order do earthquake waves appear on a seismogram? 2.How many points are needed to determine the epicenter of an earthquake?

QUIZ What is Seismology?

Earthquakes Tsunami S-Waves Crust P-Waves Faults Earthquakes

Seismographs Are instruments located at or near the surface of the Earth that record seismic waves.

 Seismologists use two scales when classifying earthquakes. 2) Modified Mercalli Scale 1) Richter Scale.

Earthquakes HOW IS IT MEASURED?.  Instrument located at or near the earth’s surface to record seismic waves. (Tool) SEISMOGRAPH.

Earthquake Scales Richter vs. Mercalli. What is an earthquake? Earthquakes are the vibration of the earth as a result of a release of energy – Earthquakes.

How do scientists know the structure of the Earth? Rock samples (direct evidence) Seismic waves (indirect evidence) –Vibrations that travel through Earth.

Measuring Earthquakes

Measuring Earthquakes (5-2 Notes). Magnitude = a measure of an earthquake’s strength Based on seismic waves.

Measuring Earthquakes. Seismograph Is an instrument used to detect and record seismic waves.

1. What do seismologists use to determine when an earthquake started? A seismogram 2. How is the intensity of an earthquake determined? By the amount.

Earthquakes Standard 3d. Students know why and how earthquakes occur and the scales used to measure their intensity and magnitude.

Earthquakes. What are earthquakes? Vibration in the ground that result from movement along faults. Fault = a break in Earth’s lithosphere where one block.

8.2 Measuring Earthquakes  A) Seismographs - instruments that record earthquake waves.  B) Seismograms electronically recorded ground motion made by.

EARTH SCIENCE Geology, the Environment and the Universe

Topic: Earthquake Measurement PSSA: A / S8.D.1.1.

Earthquakes and Earthquake Waves

Vocabulary 6/28/2016Chapter 19: Earthquakes1 SeismometerSeismographMagnitude Richter Scale Moment Magnitude Scale Modified Mercalli Scale.

Objectives How does the energy of an earthquake travel through Earth? What are the scales used to measure the strength of an earthquake? How do.

What are earthquakes?.

EARTHQUAKES Part II .

Notes 11 Earthquake Magnitude.

Learning Goals Describe the plate interactions that causes earthquakes. Discuss the types of information scientists learn from seismograms. Compare.

Section 6.5: Studying Earthquakes

Earthquake Measurement 7-2

Ch.5, Sec.2 - Earthquake Measurement

Chapter 8 Section 2.

Section 3: Measuring and Locating Earthquakes

Chapter 12 Study Notes Earthquakes.

Daily Routine Sit in your appropriate seat quietly

“Measuring Earthquakes”

MEASURING EARTHQUAKES

8.2 – Measuring Earthquakes – Part II

Measuring and Predicting Earthquakes

Measuring Earthquakes

DO NOW Pick up notes..

Earthquake Measurement

Using Distances to known Earthquake epicenters, create

Chapter 12-2 Studying Earthquakes.

8.2 Measuring Earthquakes

Section 3: Measuring and Locating Earthquakes

Do we have to take notes? Yes!.

Locating Earthquakes Chapter F5

Chapter 12 - Section 2 Measuring Earthquakes

Chapter 12 - Section 2 Measuring Earthquakes

Earthquake Intensity and Magnitude

Earthquake Measurement

Presentation transcript:

How Earthquakes are Located and Measured By Jacob and Christian

How Seismologists Measure Earthquakes Triangulation is the process they use to find the epicenter, or the middle of an earthquake Triangulation is the process they use to find the epicenter, or the middle of an earthquake Triangulation requires the seismogram Triangulation requires the seismogram To pin the exact location, seismologists use three seismograms that are in three different locations To pin the exact location, seismologists use three seismograms that are in three different locations According to Ask.com According to Ask.com

How Earthquake Damage is Measured Mercalli Scale Mercalli Scale Measures damage, not magnitude Measures damage, not magnitude Earthquakes can be measured from I to XII Earthquakes can be measured from I to XII Not very accurate Not very accurate According to our science book According to our science book

How Earthquake Magnitudes are Measured To measure magnitude, scientists can use the Richter Scale; a scale that has a base ten system To measure magnitude, scientists can use the Richter Scale; a scale that has a base ten system Magnitude 1=6 ounces of TNT blown up Magnitude 1=6 ounces of TNT blown up Magnitude 8=6 million tons of TNT blown up Magnitude 8=6 million tons of TNT blown up The Richter Scale measures energy, not damage The Richter Scale measures energy, not damage According to UPSeis According to UPSeis

Formulas for Measuring Earthquakes Mb=log10 (A/T) + Q (D,h) Mb=log10 (A/T) + Q (D,h) Mb is body wave magnitude Mb is body wave magnitude A is the amplitude of ground motion in microns A is the amplitude of ground motion in microns T is the corresponding period in seconds T is the corresponding period in seconds Q (D, h) is the correction factor in a function of distance: D is degrees, h (in kilometers) of the earthquake Q (D, h) is the correction factor in a function of distance: D is degrees, h (in kilometers) of the earthquake According to USGS According to USGS

Formulas (continued) MS = log10 (A/T) log10 (D) MS = log10 (A/T) log10 (D) Standard surface wave formula Standard surface wave formula A, T, and D are the same exact variables as the Mb formula A, T, and D are the same exact variables as the Mb formula According to USGS According to USGS

The End Thank you for watching the power point. Now it is time to go to the jeopardy (one pointer: the bottom four questions are bonuses and information may not be in the power point).