The correct answer is (c) Can move in any direction.
The movement of tectonic plates that led to the shaking of surface of the earth. The energy is released in the form of seismic waves. The place from where the earthquake starts is called focus. These waves are very intense. There are two more types of waves that are responsible for the movement of ground surface. The raylegh wave makes the ground surface move up and down. They cause most of the movement of ground. The side to side movement of ground surface is controlled by love wave.
During an earthquake, the ground surface can move in any direction.
Further Explanation:
An earthquake is a phenomenon that is characterized by the sudden slip of tectonic plates one past the other. The fault plane is the surface where they slip. The hypocenter is the location beneath the earth's surface from where the earthquake starts. The epicenter is the location directly on top of the surface.
The earth has different layers :
The edges of the tectonic plates are called plate boundaries.Many faults make up the plate boundaries and mainly earthquakes occur around these faults.
When the plates are moving they get stuck because the verge of the plates is uneven. Finally, when the plates have moved far enough from its edge in any direction this results in earthquake. Thus, at the time of earthquake surface of the ground can move in any direction. The intensity of an earthquake is measured by seismographs.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Ecology
Keywords:
Tectonic plate, seismograph, plate boundaries, fault, earthquake, hypocenter, epicenter, crust, mantle, earth.
