GEOLOGY

EARTH SCIENCE

EARTHQUAKES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which one is not an earthquake?
A
an earthquake is a piece of the earth.
B
an earthquake is when the earth moves ‘shakes’ and some pieces fall apart.
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Tremors are caused by factors that have the potential to move the tectonic plates significantly, such as volcanoes, meteors showers, underground nuclear explosion etc. A tsunami is caused by an earthquake deep in the sea, or due to seismic activity in the ocean floor. But a tsunami does not cause an earthquake.

Detailed explanation-2: -An earthquake is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or fault plane.

Detailed explanation-3: -The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth’s crust and cause the shaking that we feel.

Detailed explanation-4: -Shallow fault earthquakes. A fault is a break in the rock beneath our feet. Subduction zone earthquakes. The largest earthquakes ever recorded are subduction zone earthquakes. Deep earthquakes. Deep earthquakes occur in the subducting ocean slab, deep beneath the continental crust.

There is 1 question to complete.