18 Questions
What is the main cause of most earthquakes?
Movement of the earth's plates
Why are the boundaries of the earth's plates considered weak zones?
As they are prone to earthquakes due to plate movements
What is the main reason for the immense damage caused by major earthquakes?
Collapsing buildings and bridges
In which regions of India are earthquakes more likely to occur?
Kashmir, Western and Central Himalayas, North-East, Rann of Kutch
How do tectonic plates contribute to the occurrence of earthquakes?
By brushing past each other and creating tremors
Why is it challenging to predict when and where the next earthquake will strike?
Unpredictable nature of plate movements and seismic events
Which natural disasters can be triggered by earthquakes?
Floods and tsunamis
What is the role of mythical stories mentioned in the text in understanding natural phenomena like earthquakes?
They express ideas before scientific understanding develops
Why did ancient people believe earthquakes occurred?
Due to shifts in the balance of the Earth
How do disturbances in the earth's crust manifest on the surface during an earthquake?
Earthquake tremors
How does the Richter scale measure the intensity of earthquakes?
By quantifying ground shaking as recorded by seismographs
What plays a significant role in causing disturbances deep down inside the Earth's crust?
Continual motion of tectonic plates
What instrument is used to record seismic waves?
Seismograph
Why are earthquakes of magnitude 6 and magnitude 4 not directly comparable in terms of destructive energy?
Richter scale is not linear
What is one similarity between the Bhuj and Kashmir earthquakes?
Had magnitudes greater than 7.5 on the Richter scale
What causes the vibrations recorded by a seismograph?
Earthquake tremors
Why do scientists use seismographs to construct maps of earthquakes?
To understand plate tectonics better
How do earthquakes, volcanoes, and meteor impacts relate to tremors on Earth's surface?
They all produce seismic waves
Explore the causes and effects of earthquakes, including tsunamis and landslides. Learn about the immense damage they can cause to buildings, bridges, dams, and people, leading to significant loss of life and property.
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