1. EARTHQUAKE
UTSO NARJINARY, 49
B.Ed, University B.T. & Evening College

2. What is an Earthquake?
It is a sudden slipping or movement of a portion of the earth’s crust accompanied and followed by a series of vibrations.

3. What happens actually?
When two blocks of the earth suddenly slip past one another, earthquake occurs.
The location below the earth’s surface where
the earthquake starts is called the hypocenter,
The location directly above it
on the surface of the earth is called the epicenter.
The surface where they slip is called the fault or fault plane

4. Preliminary Determination of EPICENTRE

5. Measuring the Earthquake?
Earthquakes Are Measured Using Observations From A Sensitive Instrument Called  SEISMOGRAPH.
Any motion of the ground moves the frame. The mass tends not to move because of its INERTIA, and by measuring the motion between the frame and the mass, the motion of the ground can be determined.

6. SCALES 1. MOMENT MAGNITUDE :
The most common scale on which Earthquakes larger than approximately 5 are reported for the entire globe is called the MOMENT Magnitude.
2. RITCHER SCALE:
While the Earthquakes smaller than magnitude 5 reported by national seismological observatories are measured mostly on the local magnitude scale, also referred to as the RITCHER scale.

7. IT IS NOT ALWAYS A NATURAL PHENOMENON
Storing large amounts of water behind a DAM
(and possibly building an extremely heavy Building
Drilling
Injecting liquid into Wells
Coal Mining
Oil Drilling

8. EFFECTS OF EARTHQUAKE

9. 1. Shaking and Ground Ruptures

10. 2. Landslides and Avalanche

11. 3. Fires

12. 4. Soil Liquefaction

13. 5. Tsunami
Ref:

14. 6. Human Impact

15. Can we stop natural phenomenon.
No! it is something beyond our capability. Thus the best measure we can reach out for is to be precautious and be always on guard. Whether be it while dealing with your neighbor in society or against the so called natural hazard.

16. Precaution Against
EARTHQUAKE

17. Before The Earthquake.. b) AMBULANCE SERVICE c) POLICE HELP d) RESCUE
Always keep you Heavy Furnishing and heavy objects in lower shelves
(Do not hang heavy items such as Decorative/ Fancy lights, Pictures, and Mirrors above the bed or sitting area
Make sure your roof and wall foundation are Crack free.
3. Repair defective Electrical wiring and leaky Gas connection.
4. Make sure you have all the Emergency phone your reach.
a) FIRE SERVICE
b) AMBULANCE SERVICE
c) POLICE HELP
d) RESCUE
e) GAS DEPARTMENT
F) ELECTRIC DEPARTMENT
5. Decide where your family will meet if separated.

18. During the EARTHQUAKE
If indoor, stay indoors, where you are. Most injuries occur as people are entering or leaving buildings.
2. Take shelter under a sturdy table, desk or bed and protect your head and face as that will provide you with air space and protection against falling objects.
3. Do not use elevators, use stairways in multi-storey buildings.
If you are outdoors, stay away from buildings, trees and overhead electrical cables. Remain in the open until the tremor stops.
4. If you are driving, stop as quickly as safety permits. Stay in your vehicle.

19. AFTER THE TREMOR
Check yourself and others for injuries. Administer first aid quickly and carefully.
Do not lit Fire objects as there might be a Gas leak
Do not touch any damaged wiring.
Be prepared for aftershocks which may maximize the damage.

20. IF TRAPPED UNDER DEBRIS;
Avoid unnecessary movement so that you don’t kick up dust.
Maintain moral and fighting spirits high.
Periodically move your fingers and toes to
ensure blood circulation.
(hopefully if not dead).

21. CONCLUSION
CONCLUSION:
It is clear by now what an earthquake is, what its main effects are and the necessary steps to be maintained before, during and after the tremor occurs. The Guidelines are especially helpful for us because we are completely under the Epicenter. And I hope you maintain the Fighting spirits always high throughout your life not only against any calamity but against life’s all odds too.
Good Luck

22. FIGHTING SPIRIT, THAT’S WHAT IS NEEDED
THANK YOU