Advertisements
Advertisements
Question
Is there any relations between dam and earthquake? Explain.
Solution
The construction of dams creates a huge water reservoir in which a large portion of land is submerged. Thus, these dams cause excess water pressure in the micro-cracks and fissures in the ground near or under the reservoir. Due to this excess pressure, the water seeps into the ground and lubricates the rocks. In the worst scenario, when the water pressure is very high, the water reaches the fault planes and lubricates them. This lubrication reduces friction between the tectonic plates, thereby causing the slipping of plates over one another. Hence, in this way dams construction can trigger an earthquake.
RELATED QUESTIONS
List three states in India where earthquakes are more likely to strike.
Suppose you are outside your home and an earthquake strikes. What precaution would you take to protect yourself?
Name the scale on which the destructive energy of an earthquake is measured. An earthquake measures 3 on this scale. Would it be recorded by a seismograph? Is it likely to cause much damage?
How is the magnitude of the earthquake related to the collapse of houses?
Give scientific reasons.
It is safer to find shelter under things like a bed, table at the time of the earthquake.
Write the causes of the following:
Earthquakes
Give any two destructive effects of earthquakes?
Tsunami when did the Indian ocean attack the coastal area of Indonesia, India Srilanka, and Thailand.
State whether the following statement is True/False.
The plates of the outermost layer of the earth are always in continuous motion.
State whether the following statement is True/False.
Tremors on the earth can also be caused by the eruption of a volcano.
