EARTH SCIENCE
EARTHQUAKES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a seismic wave that travels through the body of a medium.
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a seismic wave that travels along the surface of a medium and that has a stronger effect near the surface of the medium than it has in the interior.
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the point on the Earth’s surface directly above an earthquake’s starting point.
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the location within Earth along a fault at which the first motion of an earthquake occurs.
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Detailed explanation-1: -The focus is the place inside Earth’s crust where an earthquake originates. The point on the Earth’s surface directly above the focus is the epicenter. When energy is released at the focus, seismic waves travel outward from that point in all directions.
Detailed explanation-2: -The earthquakes originate in tectonic plate boundary. The focus is point inside the earth where the earthquake started, sometimes called the hypocenter, and the point on the surface of the earth directly above the focus is called the epicenter.
Detailed explanation-3: -The location below the earth’s surface where the earthquake starts is called the hypocenter, and the location directly above it on the surface of the earth is called the epicenter.
Detailed explanation-4: -Epicenter is the location on the surface of the Earth directly above where the earthquake starts. Focus (aka Hypocenter) is the location in the Earth where the earthquake starts.
Detailed explanation-5: -Complete answer: Epicenter is the point that is directly above the focus on the surface of the earth.