Could It Happen Here? The prospect of a tsunami in the north west Joshua Alcantara Maria Dougherty.

Slides:

Advertisements

Similar presentations

Agenda 2/10 Warm-Up: Have you ever seen geologic problems in California on the news? What types of events make life more challenging on the West Coast?

Advertisements

Initiation and propagation of submarine sediment failure 14 July 2009 Schlanger Fellowship presentation at USAC summer meeting Robert Viesca Advisor: Prof.

Tsunamis!.  A tsunami is a series of ocean waves generated by sudden movement in the sea floor.  In the deep ocean, the tsunami wave may only be a few.

Near-Field Tsunamis in the POLA and the POLB Generated from Near-Shore Faults (M. Legg) Generated from Subaerial and Submarine Landslides (Synolakis, Borrero,

OCEANIC TOPOGRAPHY By Greg Schwab May 7, Competency 39 The teacher understands structure and function of the hydrosphere The teacher understands.

Instrumentation and Quantification of Tsunamis With an Emphasis on the Santa Barbara Channel.

Tsunami and Tidal Waves By Matt Sapp & Lauren Gareau.

Mass Movements at Earth’s Surface

Use the map to answer the question.

NEPAL EARTHQUAKE Aditya Kumar Anand Project Assistant Level – 2 CSIR-Central Road Research Institute.

Section 19.4 – Earthquakes and Society

Earthquakes Presented you to by the Hazard Committee Madeline Galac Nicole Barstrom.

The Economic Impact of a Terrorist Attack on the Twin Ports of Los Angeles-Long Beach Reducing the Risks and Consequences of Terrorism CREATE Conference.

Large-scale Basement-involved Landslides, California Continental Borderland Article by Kammerling, M. J., M. R. Legg Pure and Applied Geophysics.

Earthquakes Movement & Destruction. What is an Earthquake? Shaking of the Earth produced by a sudden movement of rock beneath its surface.

Copyright © by Isiorho1 Earthquake Slides By Dr. S. A. Isiorho.

UseIT Tutorial # 3 Earthquakes in the Southern California Fault System Tom Jordan June 16, 2011.

Tsunami Preparedness Week

Earthquakes & Volcanoes. BIG Ideas: 1. Most geologic activity occurs at the boundaries between plates. 2. Earthquakes are natural vibrations of the ground,

Earthquakes ● Earthquake: a sudden and violent shaking of Earth, caused by movements within the crust or volcanism ● Ex. San Francisco Earthquake in California.

Dam Failure Dams are generally an expensive structure that directly affect the economy of the area through power generation, flood control and water supply.

Tsunamis Oceans 11. What is a tsunami? Tsunamis are defined as extremely large ocean waves triggered by underwater earthquakes, volcanic activities or.

LESSONS LEARNED FROM PAST NOTABLE DISASTERS INDONESIA PART 1B: TSUNAMIS Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA.

Earthquakes. Describing Earthquakes Intensity vs. Magnitude.

Earthquakes Essential Question: How has earthquakes shaped our Earth?

NOTES. What are Earthquakes? A vibration of Earth’s crust caused by a sudden release of energy Caused by faulting or breaking of rocks Aftershocks – continued.

Tsunamis GEOL 4093 Risk Assessment. Tsunamis Also known as “seismic sea waves” Generating force is not wind, but movement of the sea floor, volcano, landslide,

Real World Applications of USGS EQ Science: Stacy Bartoletti Degenkolb Engineers Structural Engineers Association of Washington Cascadia Region Earthquake.

THE ECONOMIC IMPACT OF A TERRORIST ATTACK ON THE TWIN PORTS OF LOS ANGELES-LONG BEACH By Peter Gordon, James Moore, Harry Richardson and Qisheng Pan.

Tsunamis Oceans 11. What is a tsunami? Tsunamis. are defined as extremely large ocean waves triggered by underwater earthquakes, volcanic activities or.

Earthquake Hazards.

Tsunamis By: Lauren & Morgyn 8B. Overview This powerpoint of tsunamis will include the following informational slides: Vocabulary (1&2) Concept Explination.

General Science. What is an Earthquake?  Earthquakes are one of the most powerful natural forces  Shaking and vibration at the surface of the earth.

Part 8: Fold Types. Tensional Stress Compressive Stress Shear Stress Orientation of stress leads to different folds.

Spatial Dimensions: L (Wavelength) [m] Temporal Dimension: T (Period - time between successive crests measured by fixed observer) [s] Anatomy of an Ideal.

Earthquakes & Society –tsunami –seismic gap Objectives Discuss factors that affect the amount of damage done by an earthquake. Explain some of the factors.

Tsunamis: More Than a Splash Presentation By: Ka’ai Young, Ellie Goodrich, Geri Trower, & Ivan Maurer PHYSICS 1010.

Earthquakes Sudden movement of surface when accumulated strain along opposing sides of a fault is suddenly released. Rock stretches and snaps.

Liquefaction Liquefaction occurs where ground water is near the surface in soils composed of sands and silts. The soil temporarily loses strength and behaves.

Using HAZUS-MH to Assess Tsunami Risk Bill Bohn, Tetra Tech June 19, 2007.

California Geologic Regions and Hazards Presentation DAY 2.

JASON MASTERS UNIVERSITY OF SOUTHERN CALIFORNIA SENIOR ENVIRONMENTAL STUDIES - PUBLIC POLICY AND MANAGEMENT.

Xiaoming Wang and Philip L.-F. Liu Cornell University

Continental Margins and Ocean Basins. Continental Margins Three Main Divisions  Continental shelf  Continental slope  Continental rise.

EARTHQUAKE DISASTER RESILIENCE PART 2: Informing Community Stakeholders About Global Earthquake Disaster Situations Walter Hays, Global Alliance for Disaster.

Statistical Review of Tsunami Generated by Earthquake-Produced Submarine Landslides and Tsunami Direct Path GIS Impact Analysis John E.S. Saunders The.

19.4 – Earthquakes & Society. Damages  Death and injuries  Collapse of buildings  Landslides  Fires  Explosions  Flood waters.

Tsunamis are caused by earthquakes, landslides, volcanic eruptions, or asteroid impacts. How tsunamis are caused.

RESEARCHER SAYS A SINKING SANTA CATALINA COULD POSE TSUNAMI THREAT By: Joseph Parker Source: Rong-Gong Lin II, Los Angeles Times on What is it about?:

Environment | Medio Ambiente Natural Disasters hurricanes, tornadoes, tsunamis, volcano eruptions and earthquakes.

© 2014 Pearson Education, Inc. W Waves and Water Dynamics Chapter 8 Tsunami and Wave Energy.

Could It Happen Here? The prospect of a tsunami in the north west Joshua Alcantara Maria Dougherty.

Understanding Earth Sixth Edition Chapter 13: EARTHQUAKES © 2011 by W. H. Freeman and Company Grotzinger Jordan.

KICK ‘EM JENNY GRENADA’S ACTIVE UNDERSEA VOLCANO Prepared by NEMO Secretariat Saint Lucia With material from the Seismic Research Centre of the University.

Section 9-3 Define seismologists, seismograph, and magnitude. Describe how the Richter scale measures an earthquake. What causes a tsunami to occur? Define.

Tsunami : Evaluating the Hazard in Southern California.

Section 4: Earthquakes and Society

The Ocean Floor Ch. 19.

Jeopardy Vocab Water Glaciers and Wind Waves and Mass Wasting Misc.

Understanding Earth Chapter 13: EARTHQUAKES Grotzinger • Jordan

4 The Geography of Earthquakes

Warm up 9/27/2016 ( 10 min) Label the diagram A-G Volcano B. trench

Section 4: Earthquakes and Society

19.4 – Earthquakes & Society

Forces Within Earth Earthquakes are natural vibrations of the ground caused by movement along fractures in Earth’s crust, or sometimes, by volcanic eruptions.

Forces Within Earth Earthquakes are natural vibrations of the ground caused by movement along fractures in Earth’s crust, or sometimes, by volcanic eruptions.

Chapter 19 – Earthquakes.

Ramtin Sabeti (1) and Mohammad Heidarzadeh (2)

Presentation transcript:

Could It Happen Here? The prospect of a tsunami in the north west Joshua Alcantara Maria Dougherty

Outline History of Previous Tsunamis What causes a tsunami? Types of Tsunamis Why Southern California? Other information: –Economic effect of a Tsunami.

Area of possible tsunami in California

History Southern California has been free of damaging earthquakes for the past 200 years. However, moderate earthquakes have been increasing recently Unusual damaging waves have gather considerable attention. Papua New Guinea July 17, 1998 Also several locally generated tsunamis have been recorded. Santa Barbara December 1812 generated a tsunami effecting 60km (37.28 miles) of the coast.

What Causes a Tsunami? Earthquakes with magnitudes less than 7.0 have been known to cause tsunamis. Scientists hypothesis potential tsunamis in southern California may be caused by submarine landslides, or slope failure. Two basic types of submarine landslides. –Rupture Surface. (More likely to happen in California) –Displaced Mass of Material.

Rotational Slump Rupture surface cuts through a homogenous material Scoop shaped, concave upward Slope follows a circular arc.

Translational Slide Rupture surface is planar Failure result of a heterogeneous material –Bedding planes

Why California? Slopes offshore of Southern California have thick accumulations of under-consolidated sediment. Studies have shown significant sliding and slumping recently. especially in the Santa Barbra Channel. Therefore underwater slope failures are easily triggard by seismic activity due to the low shear strength of the sediments, possibly giving give rise to a 20m tsunami. The deep basins, towering ranges, and canyons with steep walls that make up the southern California landscape can become immensely flooded

Map of Southern California Coast

Potential Wave Heights

Speed of propagating wave

Calculating the cost of a flood in Southern California Southern California Planning Model: a holistic approach to tsunami effects –A model that incorporates the economic loss through loss of labor, transportation, services SPCM 1 –Shows detailed economic effects by region –Trip matrices »A model that traces back consumption patterns. »Examples: Journey to work and journey to services SPCM 2 –The model calculates direct losses within a damage area and the economic effects of those losses. –Transportation effects on supply and demand

Losses Direct losses: Losses due to lost opportunities to produce. –transportation issues Indirect and induced losses arise as people and businesses are unable to work or generate income as a result of the damages. –Indirect losses: Losses by suppliers whose products and services are no longer purchased by damaged firms and households. –Induced losses: Losses due to labor.

Direct, indirect and induced business loss in flooded area No freeway links Port of Los Angeles and Long Beach Closed reduction in export capabilities Scenario 1 Scenario 2 Scenario 3 Truck and rail only Scenario 4 Scenarios of flooded area

Questions?

Resources –Jose Borrero, Ph.D., Sungbin Cho, James E. Moore II, Ph.D., Harry W. Richardson, and Costas Synolakis, Ph.D., “ Could it happen Here?” American Society of Civil Engineers (2005) 54-65,133 – – –