**How do scentists find the focus of an earthquake answers.com**

The focus (more correctly termed the hypocenter) of an earthquake is the point in the earth where the earthquake rupture or fault movement actually occurred. The point on the surface directly above the hypocenter is known as the epicenter.... The point of origin of an earthquake is called its focus and the point on the Earth's surface directly above the focus is the epicenter. Since the 1970s, the use of the Richter magnitude scale has largely been replaced in the scientific community by the moment magnitude scale (MMS).

**What is the definition of a focus in an earthquake Answers**

6/07/2008 · The difference in velocities of P (primary) and S (secondary) waves is a method used to locate the epicenter of an earthquake. I suggest you research a bit on "seismograms" and "travel time graphs" if you want to go further in depth and understand how earthquake epicenters and focus are precisely located.... The epicenter of an earthquake is the place on the Earth's surface directly above the focus (more than one are called foci), which is the place inside the Earth where the quake originates. Foci are usually somewhere between the surface and 100 km in depth. Find out where the

**FOCUS OF AN EARTHQUAKE crossword answers clues**

The place right above the focus (on top of the ground) is called the epicenter of the earthquake. Try this little experiment: Break a block of foam rubber in half. ctv watch how to get away with murder The difference in velocities of P (primary) and S (secondary) waves is a method used to locate the epicenter of an earthquake. I suggest you research a bit on "seismograms" and "travel time graphs" if you want to go further in depth and understand how earthquake epicenters and focus …

**How do you locate an earthquake epicenter/focus? Yahoo**

The focus (more correctly termed the hypocenter) of an earthquakeis the point in the earth where the earthquake rupture or faultmovement actually occurred. The point on the su…rface directly how to find the centroid of a right triangle P waves are faster than S waves so by looking at seismograms, scientists can accurately locate the epicenter as well as the hypocenter, or focus of the earthquake at depth. (Recorded during a 2007 teacher workshop on earthquakes and tectonics. Speaker is Dr. Robert Butler, University of …

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### Hypocenter Wikipedia

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- How do scentists find the focus of an earthquake answers.com

## How To Find Focus Of Earthquake

6/07/2008 · The difference in velocities of P (primary) and S (secondary) waves is a method used to locate the epicenter of an earthquake. I suggest you research a bit on "seismograms" and "travel time graphs" if you want to go further in depth and understand how earthquake epicenters and focus are precisely located.

- be used to find the location of the focus or epicenter and the time of occurrence of the earthquake. The distance between the beginning of the first P wave and the first S wave tells you how many seconds the waves are apart. 11 Triangulation. P waves move about 5.5 kilometers per second (k/s) through granite, whereas the slower S waves move only about 3 k/s through granite. Imagine that at
- The focus (more correctly termed the hypocenter) of an earthquakeis the point in the earth where the earthquake rupture or faultmovement actually occurred. The point on the su…rface directly
- The earthquake occurred at the point where all three circles intersect. By looking at the seismograms from different recording stations we can find out the epicentre of an earthquake. The signals arrive first at the closest station and last at the one furthest away.
- 19/12/2018 · If you find yourself with several options about how to proceed during an earthquake indoors, attempt the drop, cover, and hold technique. There are several problems with the triangle of …