Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
|
Meaning behind word Tsunami
|
Japanese for "harbor wave"
|
|
|
What is a Tsunami?
|
Sudden vertical displacement of ocean water
|
|
|
What are Tsunamis caused by?
|
-Volcanic Flank Collapse
-Earthquake causing uplift, or subsidence of sea floor -Underwater Landslides -Submarine explosion -Asteroid |
|
|
What is a Tsunami caused by an Earthquake like?
|
-Forms dome above fault which collapses
-Travel 720km/hr -Tsunami gains height and loses speed closer to land -Trough arrives first |
|
|
What is runup?
|
furthest horizontal and vertical distance of the largest wave
|
|
|
What is a Distant Tsunami?
|
Travels out to sea for long distances without losing momentum
|
|
|
What is a local Tsunami?
|
Travels toward land very quickly and people have little time to react
|
|
|
What is a Submarine Landslide?
|
When landslides occur underwater and displaces water vertically
|
|
|
Is Lituya Bay, Alaska significant?
|
Rock Avalanche! Causes Tsunami.
|
|
|
Where is the greatest risk of Tsunamis?
|
Coastal areas and areas near or across subduction zones
|
|
|
What is the Primary Affect of Tsunamis?
|
Flooding and erosion
|
|
|
What are the Secondary Affects of Tsunamis?
|
Fires, Disease, and Contaminated Water
|
|
|
What are the causes of Tsunamis?
|
-Earthquakes
-Landlides -Volcanic Eruptions -Asteroids |
|
|
What is caused by Tsunamis?
|
Coastal erosion
|
|
|
Benefits of Tsunamis?
|
May bring nutrients and sediment for shoreline
|
|
|
How to minimize Tsunami risk?
|
-Tsunami warning system
-Building codes for coastline areas -Construct Tsunami runup maps -Have more vegetation -Educate on Tsunami signs |
|
|
Signs of a Tsunami?
|
-Feel a strong earthquake
-If ocean recedes -Tsunami warning issued |
