Multiple choice general knowledge

What is the point of origin of an earthquake called?

  1. Quake centre

  2. Epicentre

  3. Seismic focus

  4. Tectonic point
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The point of origin of an earthquake is called the seismic focus or hypocenter - the exact location where the earthquake rupture begins within the Earth's crust. The epicentre is the point on the Earth's surface directly above the focus, which is different.

AI explanation

To answer this question, you need to understand the concept of earthquakes.

An earthquake occurs when there is a sudden release of energy in the Earth's crust, leading to seismic waves. The point within the Earth where the earthquake originates is called the seismic focus or hypocenter.

Now, let's go through each option to understand why it is correct or incorrect:

Option A) Quake centre - This option is incorrect because there is no specific term called "quake centre" associated with earthquakes.

Option B) Epicentre - This option is incorrect. The epicenter refers to the point on the Earth's surface directly above the seismic focus. It is the location where the earthquake's effects are most strongly felt.

Option C) Seismic focus - This option is correct. The seismic focus (or hypocenter) is the point within the Earth where the earthquake originates. It is the point where the energy is released and seismic waves radiate outwards.

Option D) Tectonic point - This option is incorrect. There is no specific term called "tectonic point" associated with earthquakes.

The correct answer is C) Seismic focus. This option is correct because the seismic focus is the point of origin of an earthquake.

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