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If there are 3 records of the same earthquake how can the epicenter be determined?
Wiki User
∙ 15y ago
The epicenter can be determined by measuring the time difference between the arrival of P and S waves, and then calculating the distance of the epicenter from each of the 3 stations. Once you have estimated the distance for each station you then draw a circle around each one. The place where the circles meet or intersect, is the epicenter.
Wiki User
∙ 15y ago
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Is the epicenter of an earthquake the same as the focus?
Suppose you're at a extinct volcano with a steep sides.The ground is mostly ash and small pieces of rock.What Type of valcano is this?
How can geologists tell where the epicenter of an earthquake is?
The epicenter refers to the point on the earth's surface above the focus of an earthquake. Geologists determine the epicenter with the use of 3 seismographs. This method is called triangulation.
How are faults and epicenters related?
The violent shaking and destruction associated with earthquakes are the result of rupture and slippage along fractures in Earth's crust called faults. Larger quakes result from the rupture of larger fault segments. The origin of an earthquake occurs at depths between 5 and 700 kilometers, at the focus(foci = a point). The point at the surface directly above the focus is called the epicenter.
How do scientists work out the epicentre of an earthquake?
S-waves and P-waves emit from the focus (epicenter) at the same time, yet one of them is faster than the other. therefore the S waves and P waves are directly proportional to each other. So all one needs is to do the math and trace the distance between the waves and there, you have found the Focus (epicenter) of the earthquake.
How do people now about earth layers?
From earthquake waves. There are 2 types of waves, p or primary waves and s or secondary waves that are generated when an earthquake occurs. Both types of waves move away from the epicenter of the earthquake in all directions including "down" through the layers of the Earth under the epicenter. Both waves start out at the same time from the same spot, but P waves move through the earth faster, hence the name primary waves. The farther the earthquake monitoring equipment is from the epicenter the bigger the lag time between when the p and s waves arrive. Monitoring stations on the side of the Earth opposite the epicenter do not receive any S waves. This is because S waves only move through solids so when the S waves hit the liquid outer core, the energy from these waves dissipates. When you move out far enough perpendicularly from the epicenter, S waves show up again on monitors. By overlapping these "shadow zones" from multiple quakes around the world, the depth at which the liquid outer core begins can be determined.
How can be determined the earthquake epicenter from seismic waves?
The simplified answer is that it works much in the same way you would determine the source of a sound (which is also in waves). Multiple measurements of the intensity are taken from different locations are used to triangulate an earthquake.
If the focus and the epicenter of an earthquake were in the exact same spot where would that spot have to be?
that cant happen
Is the vibration of an earthquake strongest where the earthquakes starts?
It certainly is. The point on the surface where the earthquake starts is the epicenter, located directly above the earthquake's focus point. The land nearest to the epicenter takes the most impact as the primary and secondary waves move outward and gradually weaken. Assuming that all buildings are the same, the buildings closest to the epicenter will always take the most damage.
Is the epicenter of an earthquake the same as the focus?
Suppose you're at a extinct volcano with a steep sides.The ground is mostly ash and small pieces of rock.What Type of valcano is this?
How can geologists tell where the epicenter of an earthquake is?
The epicenter refers to the point on the earth's surface above the focus of an earthquake. Geologists determine the epicenter with the use of 3 seismographs. This method is called triangulation.
Is epicenter the same as spot?
No. Epicenter is the same as precisely the spot.
How are faults and epicenters related?
The violent shaking and destruction associated with earthquakes are the result of rupture and slippage along fractures in Earth's crust called faults. Larger quakes result from the rupture of larger fault segments. The origin of an earthquake occurs at depths between 5 and 700 kilometers, at the focus(foci = a point). The point at the surface directly above the focus is called the epicenter.
How do scientists work out the epicentre of an earthquake?
S-waves and P-waves emit from the focus (epicenter) at the same time, yet one of them is faster than the other. therefore the S waves and P waves are directly proportional to each other. So all one needs is to do the math and trace the distance between the waves and there, you have found the Focus (epicenter) of the earthquake.
How do people now about earth layers?
From earthquake waves. There are 2 types of waves, p or primary waves and s or secondary waves that are generated when an earthquake occurs. Both types of waves move away from the epicenter of the earthquake in all directions including "down" through the layers of the Earth under the epicenter. Both waves start out at the same time from the same spot, but P waves move through the earth faster, hence the name primary waves. The farther the earthquake monitoring equipment is from the epicenter the bigger the lag time between when the p and s waves arrive. Monitoring stations on the side of the Earth opposite the epicenter do not receive any S waves. This is because S waves only move through solids so when the S waves hit the liquid outer core, the energy from these waves dissipates. When you move out far enough perpendicularly from the epicenter, S waves show up again on monitors. By overlapping these "shadow zones" from multiple quakes around the world, the depth at which the liquid outer core begins can be determined.
Why might waves from the same earthquake effect one area more than it will effect another area?
Well it all depends wher the epicenter is. Wherever that is the earthquake will be the strongest but still beable to be felt in other areas.
Explain why earthquakes of the same strength may cause different numbers of deaths?
Location: An earthquake with its epicenter in the middle of the Pacific Ocean probably won't even be felt on land. The same strength and depth, with its epicenter near San Francisco could potentially cause thousands of deaths.See the "Zoom In" link!
How do they use seismometers to locate the origin of the earthquake?
You can think of this in the same way that satellites work to find your location for the GPS in your car. An earthquake happens and it is picked up on 3+ seismometers. These seismometers measure the waves that the earthquake produced and the velocity at which they are traveling and you look at where all the seismometer calculations run together. You have the epicenter of your earthquake.
