Seismic hazard is the danger we face from earthquakes. You know that the earth's crust is made up of big pieces called plates, and these plates move very slowly, which we can't even feel. But sometimes, these plates move suddenly and cause the ground to shake violently. That's what we call an earthquake.
Now, earthquakes are not always dangerous. But when they happen in areas where many people live and work, they can cause a lot of damage and even kill people. That's why we call it a hazard.
Scientists are always studying earthquakes and trying to understand how they work. They use special machines and instruments to measure the movements of the earth's crust and predict where and when earthquakes might happen. This helps us to prepare and take steps to prevent damage and loss of life.
Seismic hazard can be reduced by constructing buildings and other structures that can stand up to earthquakes. This is why you see many tall buildings with strong steel frames in earthquake-prone areas. People also practice earthquake drills and learn what to do in case an earthquake strikes.
So, in simple terms, seismic hazard is the risk or danger we face from earthquakes. But by understanding how earthquakes work and taking steps to prepare and protect ourselves, we can lessen that hazard and stay safe.