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1. EARTHQUAKE HAZARD AND
RISK REDUCTION METHOD
Ad.legaspi23
DISASTER READINESS AND RISK REDUCTION

2. Ano ang
pinakatumatak sa
iyo na balita na
tungkol sa lindol?
Activate Prior knowledge

4. 1. Body Wave
Travel inside the Earth and carry energy.
P wave (moves parallel to wave direction)
•Travels through air, liquid, and solid
S wave (moves perpendicular to wave
direction)
•Move only through solids
SEISMIC WAVE

5. SEISMIC WAVE
2. Surface waves
•Radiate from the epicenter
along the Earth’s surface
–Travel more slowly than
body waves
–Two occur simultaneously:
up-and-down rolling motion
and a side-to-side vibration

6. •Seismograph: a device that records
seismic waves
–Pen remains still as paper (and
ground) moves up and down
•Seismogram: the record of the
Earth’s vibration
Measurement of Seismic Waves

8. Mercalli Scale- measures the
structural damage the earthquake
causes
Richter Scale- measures the energy
released from the earthquake
https://www.officialgazette.gov.ph/laginghanda/phivolcs-earthquake-intensity-scale-filipino/

9. Plate Boundaries

10. Plate Boundaries
•Transform (San
Andreas Fault Zone)
-When plates move
horizontally past one
another

11. Plate Boundaries
•Convergent
(Himalayas)
-When plates move
together

12. Plate Boundaries
•Divergent (East
African Rift)
-When plates move
apart

13. Knowing the Hazards
in your area is key
Most Valuable Preparation

14. Hazard Associated with Earthquake