Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.
-
Upload
octavia-francis -
Category
Documents
-
view
215 -
download
0
Transcript of Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.
![Page 1: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/1.jpg)
EarthquakeEarthquake
CH 5 Prentice Hallp.154-159
CH 5 Prentice Hallp.154-159
SafetySafetyHazards andHazards and
![Page 2: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/2.jpg)
How Earthquakes Damage
• Severe shaking produced by seismic waves can damage or destroy buildings and bridges.
• Topple utility poles• Fracture gas and water mains.• S-Waves – side to side and
up/down motion can tear a building apart.
![Page 3: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/3.jpg)
Local Soil Conditions
• Loose soil shakes more violently than surrounding rock.
• A house built on solid rock will shake less than a house build on sandy soil.
![Page 4: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/4.jpg)
Liquefaction
• Occurs when the violent shaking suddenly turns loose, soft soil into liquid mud.– Likely where soil is full of moisture.– Buildings sink and pull apart.– Can trigger landslides.
![Page 5: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/5.jpg)
Aftershocks
• Smaller earthquakes that follow large earthquakes.
• Up to 1,000 per day can strike
• May strike hours, days or months later.
![Page 6: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/6.jpg)
Tsunamis
• Huge ocean waves caused by underwater earthquakes or landslides.
![Page 7: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/7.jpg)
• Displaces water and forms a large ocean wave.– Waves travel at speeds up
to 750km/h or 500mph.– Wave height is low until it
reaches land.• Six story building (30ft)
• Threatens coast lines.
Tsunamis
![Page 8: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/8.jpg)
2004 Tsunami
![Page 9: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/9.jpg)
Making Buildings Safer
• To reduce damage new buildings must be made stronger and more flexible.
• Older buildings must be modified to withstand stronger quakes.
![Page 10: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/10.jpg)
Choice of Location
• Steep slopes- pose the danger of landslides.
• Filled land (loose soil) can shake violently
• Avoid building near faults.
![Page 11: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/11.jpg)
Construction Methods
• Anchor buildings and road supports into solid rock below.
• Base-isolated buildings– Rests on shock absorbing
rubber pads or springs.– Allows the building to
move back and forth gently.
![Page 12: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/12.jpg)
Protecting Yourself
• Most danger is due to falling objects.
• Stop, Cover and Hold
• Stay along an inner wall and cover your head and neck.
![Page 13: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/13.jpg)
Protecting Yourself
• Avoid windows, mirrors and furniture that may fall over.
• Make an earthquake kit- with first aid supplies, canned food and water.
![Page 14: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/14.jpg)
Protecting Yourself
• If outside-– Move to an open area away
from falling objects:• Power lines• Trees• Buildings
– Sit down to avoid being thrown down.
![Page 15: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/15.jpg)
Earthquake Safe House
![Page 16: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/16.jpg)
Earthquake Supplies
![Page 17: Earthquake CH 5 Prentice Hall p.154-159 CH 5 Prentice Hall p.154-159 Safety Hazards and.](https://reader030.fdocuments.net/reader030/viewer/2022032702/56649f4a5503460f94c6babe/html5/thumbnails/17.jpg)
Earthquake Quizzes