Downloaded 1,759 times
Uploaded bymae2388
Earthquakes
1. The document discusses earthquakes and faults, explaining that the Philippines is prone to earthquakes due to its location along the Ring of Fire. 2. It defines a fault as a break in the earth's crust where significant movement has occurred, and explains how faults produce earthquakes through the buildup and sudden release of energy from inside the earth. 3. The document provides information on earthquake waves, intensity scales, and safety tips for both indoors and outdoors during and after an earthquake.
More Related Content
Earthquakes
- 1. GRADE 8 SCIENCEUNIT 2: EARTH AND SPACE At home before an earthquake: MODULE 1: EARTHQUAKES AND FAULTS krisannmaeyapbonilla Subic National High School
- 2. Grade 7 Discoverthat our country’s location near the equator and along the Ring of Fire influences what makes up the Philippine environment (e.g. natural resources, climate).
- 3. Grade 8 Beinglocated along the Ring of Fire, the Philippines is prone to earthquakes. Using models, explain how earthquakes are generated by faults. Try to identify faults in the community and differentiate active faults from inactive ones.
- 4. Why do weneed to learn about earthquakes?
- 5. Where do earthquakesoccur?
- 7.
- 8. WHAT IS AFAULT? A BREAK in the Earth’s crust, and along the break, significant movement has taken place.
- 9. HOW DO FAULTS PRODUCE
- 13. Energy from insidethe Earth make the ground move (pulling the rubber band). There is no movement friction right away because of the FRICTION ( connecting tape). Friction held the rocks together. Once the friction is overcome, the ground will move and the earthquake will occur.
- 16. Where does anearthquake start?
- 17. Widescreen Test Pattern(16:9) Aspect Ratio Test (Should appear circular) 16x9 4x3
- 18. FOCUS/ HYPOCENTER -start (origin) of the earthquake - region where rocks break EPICENTER - The point on Earth’s surface, above the focus - the most violent shaking of the ground occurs
- 19. Use your modelto show different types of movement along a fault. How would the surroundings be affected?
- 22. Waves of energycaused by sudden breaking of rock within the Earth or an explosion.
- 25. P wave (PRIMARYWAVE) - Fastest seismic wave S wave ( SECONDARY WAVE) - Slower than P wave. - Do not travel thru liquid L wave ( SURFACE WAVES) - Travel from focus up to the epicenter -Causes MOST of the damage during an earthquake
- 26. 1.When an earthquakesoccurs, where would shaking be greater? Near the epicenter or away the epicenter? 2.Where would damage be more? Near the epicenter or away from the epicenter? 3.Where would be the intensity higher? Near the epicenter or away from the epicenter?
- 30. Roman Numerals (I – X) Hindu –Arabic Numerals 1- 9
- 31. PHIVOLCS Earthquake Intensity Scale How strong is the earthquake? I. Scarcely Perceptible - Can be felt under favorable circumstances. Delicately balanced objects are disturbed slightly. Still water in containers oscillates slowly. X. Completely Devastating - Nearly all man-made structures are destroyed. Massive landslides and liquefaction, large scale subsidence, uplift of landforms, many ground fissures are observed. Changes in river courses and destructive seiches in large lakes occur. Many trees are toppled, broken, and uprooted.
- 32. DO YOU LIVE NEAR AN ACTIVE FAULT?
- 35. At home beforean earthquake: Prepare an earthquake emergency kit with non- perishable food, bottled water, flashlights, first aid materials, blankets, spare glasses and other essential items and store it where it will be easily accessible in case of earthquake.
- 36.
- 39. At home beforean earthquake: Turn off the electricity and water supply. Anchor heavy furniture down to the floor.
- 42. Indoors during an earthquake: Go to a safe such as under the table or desk, or wall away from windows or hazardous objects. Cover the back of your head and eyes. Beware of any falling objects or electrical wires. If cooking, turn off heating elements ASAP.
- 44. Triangle of Life (Indoors)
- 45. outdoors during an earthquake: Stay in open areas away from buildings, power lines, trees, and other potential hazards. If driving, stop quickly.
- 46. outdoors during anearthquake:
- 49.
- 50.
- 51.