Hazard City: Tsunami/Storm Surge Assessment (pt. 1) Part A - Tsunami Risk Ocean

Question

Hazard City: Tsunami/Storm Surge Assessment (pt. 1)

Part A - Tsunami Risk

Ocean Village is built directly on the coast facing the open ocean. The village council has asked you to do a preliminary risk assessment of the village for tsunamis of various run-up elevations. What is the minimum tsunami run-up elevation that poses a risk to each site? Use the map provided below to answer this question by placing each site in the appropriate bin for run-up elevation.

Note that the elevation contours are spaced 5 feet apart and are lines of constant elevation. You will need to compare elevation of the various sites to the run-up elevation to determine risk.

Question for Part A is below -

Sites in which the water run-up elevation is 10 feet: __________________________________

Sites in which the water run-up elevation is 20 feet :   __________________________________

Sites in which the water run-up elevation is 30 feet: __________________________________

Sites that are not at risk:

Part E - Open Ocean Tsunami Detection (I believe the answer is C, use this to answer: http://media.pearsoncmg.com/ph/esm/esm_hazardcity_4_standalone/assignment06/tsunami_background.htm )

If you had been in a boat in the open ocean as the 1960 Concepción, Chile, earthquake passed, what would have happened to your boat?

Part F - Tsunamis in the Atlantic Ocean

Why hasn't the east coast of the United States been affected by tsunamis in recorded history?

Part H - Elevation Change and Tsunamis

The elevation of Ocean Village has been determined in order to predict the potential risk to tsunamis, but why might this elevation not be accurate after a tsunami?

(A) Your boat would have been pushed several hundred miles in the direction the tsunami was traveling. (B) Your boat would have been picked up between 50 and 100 feet by the swelling ocean water. (C) Both the two occurrences above would have occurred. (D) Nothing noticeable would have happened.

Explanation / Answer

Answer Part A- 1- Site in which water run up elevation is 10 feet - Site 1

Answer Part A- 2- Site in which water run up elevation is 20 feet – Site 5

Answer Part Ac- 3 - Sites in which the water run-up elevation is 30 feet:- Site 3

Sites that are not at risk: Site 1 & Site 2

Part E- Answer C, both A & B would have occurred

(In case of occurrence of tsunami would have been picked up between 50 – 100 meters and have travelled in the direction of tsunami.)

Part F: Answer C, the east coast do not have tectonically active zone offshore to generate tsunami

(Tsunami’s are generates due to active plate boundary related with subduction zone)

Part H: Answer C, Ocean Village could be located above a subduction zone. After strain is released at a subduction zone, land elevation lowers. Therefore, more areas may be affected by a tsunami

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.