Advertisements
Advertisements
Question
What are known as seismic focus and epicenter with respect to an earthquake?
Advertisements
Solution
The point of origin of earthquake waves is called the seismic focus, and the center vertically above the seismic focus nearest to the earth’s crust is called the epicenter.
APPEARS IN
RELATED QUESTIONS
Identify and name the internal movement.
Molten magma is thrown out of the earth’s mantle.
Fill in the blank:
Most earthquakes occur on account of the strain in the _________.
Fill in the blank:
___________ are the first earthquake waves to be recorded on a seismograph of an earthquake.
Fill in the blank:
The last of the earthquake waves to arrive on the surface of the earth are ___________ waves.
Fill in the blank:
The giant sea waves caused by earthquakes in the oceans are called ___________.
Fill in the blank:
About 70 percent of the earthquakes occur in the _________________ Belt.
State two natural causes of an earthquake.
How are earthquakes useful?
How is the intensity of an earthquake measured?
How an earthquake is caused?
Name the causes of earthquakes.
Why are earthquakes related to volcanoes?
Name three causes of Earthquakes.
Give one word for the following :
The surface position immediately above the origin of an earthquake.
Give reasons for the following:
Internal processes are different from external processes.
Seismology is the study of ______.
The earthquake is measured by the ______ scale.
How the earthquake can be recorded?
Name the point where the vibrations originate in an earthquake.
What is the point of the earth’s surface directly above the focus called?
