Ground Motion and Building Response. Building Oscillation Seismic Simulation Thanks to FEMA, for original design.

Slides:

Advertisements

Similar presentations

Chapter 9: Earthquakes 9.1: Earthquakes occur along faults

Advertisements

Effects of Earthquakes (1)

PLATE TECTONICS IN THE ZONE DAMAGE SEISMIC WAVES 1pt 1 pt 1 pt 1pt

Seismology and Earthquake Engineering :Introduction Lecture 3

Friday, March 23 nd 1 Attendance 2 Go over Review Sheet Test Pass Back papers.

Earthquakes release energy

Earthquakes in New Zealand. Global Distribution of Earthquakes.

Earthquakes Seismic Waves in the Earth’s Crust. Earthquakes ► An earthquake is a series of seismic waves or tremors in the earth’s crust. ► They are caused.

Local Site Effects Seismic Site Response Analysis CEE 531/ESS 465.

Inside Earth: Chapter 2- Earthquakes

Lesson 2 – Earthquakes and seismic waves

PAGES 292 TO 303 MR. ALTORFER SCIENCE EARTHQUAKES.

Earthquakes Chapter 5. Earthquakes What causes and earthquake? 1._____________________________________ 2.Stress adds _________ to rock and ___________.

Larry Braile AS-1 Workshop, September, 2008 San Francisco Bay Area Earthquake Ground Motion Simulations

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

Earthquakes!. Think! What are important characteristics to have in building an earthquake safe building?

Earthquakes occur on faults Active Fault. Earthquakes Create Seismic Waves.

Earthquakes An earthquake is shaking or movement of the Earth. They are caused by plate tectonics.

New Madrid Earthquake By: Julie Dillon and Caroline Miller.

JEOPARDY Chapter 9- Earthquakes Mrs. Flores McElhinney Middle School.

Chapter 5 EARTHQUAKES and ENVIRONMENT. Earthquakes Violent ground-shaking phenomenon by the sudden release of strain energy stored in rocks One of the.

1 2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Earthquakes Shake Rattle Roll Lets.

Chapter 8, Section 1 – What are Earthquakes?

Earthquake Review.

Earthquakes and Volcanoes Chapter 11 Lesson 2 March 28 th and 29 th, 2011.

Earthquake Proof Buildings Objective. – To design a earthquake proof building for San Francisco or Tokyo that considers the key ideas of design, construction.

Seismic Design of Concrete Structure.

Earthquakes Most destructive forces on Earth. But it is buildings and other human structures that cause injury and death, not the earthquake itself 1988.

We’ve looked at plate tectonics... Now lets look at a possible outcome:

Earthquakes. What is an earthquake? Used to describe the sudden slip on a fault, and the resulting ground shaking and radiated seismic energy caused by.

1.Causes: A.plate tectonics (elastic rebound theory)  faults “stick”  buildup of energy  when they slip lots of energy is released = EARTHQUAKE.

 Earthquakes are caused by a process called faulting. Faulting is a process when tectonic plates covering the earth rub together and create pressure.

Before you jump into this slide show, you should view the Presentation on EarthquakeSeismology See notes for link.

Measuring Earthquakes. (1) How are earthquakes studied? – or, seismograph, an instrument that measures ground vibrations seismometer – or, seismograph,

Earthquakes Chapter 2 book F page 44. Vocabulary for section 1 page 44 book F Stress Tension Compression Shearing Normal fault Reverse fault Strike-slip.

Earthquakes and Seismic Waves  Caused by pressures generated through plate tectonics. Plates try to move but cannot. As pressure increases rock breaks.

Earthquakes On Shaky Ground. Earthquakes The shaking of the Earth’s surface Caused by faulting beneath the surface –Faults are when the rock splits and.

Inside Earth Chapter 2 Earthquakes 2.2 Earthquakes and Seismic Waves.

Earthquakes! I feel the Earth move…. What are they? Shakes Sways Trembles Vibrations.

FEMA/ EARTH SCIENCE ASPECTS OF HAZUS Ivan Wong Seismic Hazards Group URS Corporation Oakland, CA.

Estimation of Future Earthquake Annualized Losses in California B. Rowshandel, M. Reichle, C. Wills, T. Cao, M. Petersen, and J. Davis California Geological.

U.S. Department of the Interior U.S. Geological Survey USGS Earthquake Hazards Program Earthquakes 101.

#18 Measuring Earthquakes. How are earthquakes studied? Seismologists use seismometers, or seismographs, an instrument that measure vibrations in the.

Earthquake Ground shaking caused by the sudden and rapid movement of one block of rock slipping past another along fractures in Earth’s crust called FAULTS.

Aim: What are Earthquakes and their characteristics? I. Earthquakes – any vibrating, shaking, or rapid motion of Earth’s crust. A. Fault – zone of weakness.

Earthquakes! An earthquake, or seismic event, is a sudden movement of Earth’s crust that releases energy.

Aim: What are Earthquakes and their characteristics? I. Earthquakes – any vibrating, shaking, or rapid motion of Earth’s crust. A. Fault – zone of weakness.

Chapter 5 Earthquakes Review Game. Rules Coin toss for 1 st question Team will answer the question, random selection Correct answer gets the team a point.

Earthquakes and Seismic Waves 2-1. What is an Earthquake? Shaking and trembling that results from the movement of rock beneath Earth’s surface Occur when.

6.4 Earthquake safety Key concepts: How do geologists determine earthquake risk? What kinds of damage does an earthquake cause? What can be done to increase.

Bellringer# 27 What is the Richter Scale? What is the greatest magnitude on the Richter scale? Where would an earthquake with the greatest magnitude be.

Earthquakes A sudden shaking of earth as rocks break along a fault or plate boundary A sudden shaking of earth as rocks break along a fault or plate boundary.

  The location underground where an Earthquake begins is the focus.  The crust breaks at the focus, and the released energy pushes outward in all directions.

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 th Grade Science: Shaking up learning and exploding the minds of 8 th graders. Chapter 10, Review!

Seismograph Mercally Scale Richter ScaleSan Andres Fault Focus Epicenter Aftershock Pictures of disasters(earthquakes) credits.

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?.

Earthquake Measurement 7-2

Measuring Earthquakes

Earthquakes Pressure Release.

Waves and Oscillation waves transport _________ along a medium without transporting ________.

There are more than 30,000 earthquakes worldwide each year!

Do we have to take notes? Yes!.

Presentation transcript:

Ground Motion and Building Response

Building Oscillation Seismic Simulation Thanks to FEMA, for original design

Mexico city, 1985

Why does the shaking vary between earthquakes and locations?

What determines level of ground shaking? Source –Magnitude –Type of fault –Direction of faulting Path –Distance –focusing - deep structure –Attenuation - depends on rock type Eastern and western US very different

How far away can you feel an earthquake?

What determines level of ground shaking? Source –Magnitude –Type of fault –Direction of faulting Path –Distance –focusing - deep structure –Attenuation - depends on rock type Eastern and western US very different Site effects

Amplified ground shaking

San Francisco geology

How to protect buildings from earthquake shaking? Make stronger –Expensive, physical limits Make building more flexible –Physical limits on contents and people Add shock absorbers

Design example With base isolation Without base isolation