answersLogoWhite

0

Earthquakes

User Avatar

Aileen Morissette

Lvl 10
2y ago
No Reviews
Leave the first rating

Rate this Study Guide:

Cards in this guide (17)
What is the Ring of Fire

The Ring of Fire (Pacific Ring of Fire) is an area of Pacific Plate subduction, rimming (of course) the Pacific Ocean. The plate subduction creates a line of volcanism geographically around its perimeter that appears to form a circle or ring.

The Ring of Fire is the subducting plate boundary of the shrinking Pacific Ocean. The subducting oceanic crust is being drawn under less dense oceanic and continental crust and is melting into the upper mantle which can lead to volcanism and earthquakes.

What process occurs when an earthquake's shaking turns loose soil into mud

the answer is liquefaction

Why was the seismograph created

A seismograph was created to measure out the magnitude of earthquakes.

How would you locate the epicenter of an earthquake once you have determined the distance from the epicenter of the earthquake to each of three seismographic stations

The three stations' rings that showed the distance from the epicenter and in that area would be where the epicenter is.

How much of an increase in wave amplitude is seen from an earthquake measuring 5.4 on the Richter scale compared to one measuring 4.4

Ten times

What is one way magma forms

it goes through lava and while in the process it changes so just put it goes through a lava rockformation

One way magma forms is rising rocks melt in the mantle a pressure decreases

Why did most scientist reject Wegener hypothesis of continental drift

Because Wegener could identify the cause of continental drift

When magma forms within the mantle it is most often a result of

Either the loss of confining pressure causing the melting point of the material to drop below the in-situ temperature or due to the presence of volatiles which enter the mantle where subduction occurs and also lower the melting point of the material.

What did wegener hypothesis happened to the continents

Continental Drift.

Which is not a factor in calculating the moment magnitude of an earthquake

magnitude of past earthquakes in the area

What is the difference of the P waves and S waves used to locate an earthquake's epicenter

P waves, also called primary waves, are the first waves to be registered on a seismograph. The S waves, or secondary waves, are the second and slower wave to register on the seismograph. When locating an earthquakes epicenter seismologists take the first reading of the P wave, and then take the reading from the S wave. At the station of where the earthquake was recorded, seismologists draw a large circle from where the earthquakes epicenter could be. TO exactly located the earthquakes epicenter there needs to be at least 3 dfferent staions where the earthquake hit to determine its epicenter using the S and P time interval. 

Why was Alfred wegeners idea that tidal forces might cause continental drift refuted as impossible

It would stop earth's rotation.

Showed that the tidal forces needed to move continents would stop earths rotation.

Do glaciers cover 70 percent of earths land

No. Only a fairly small percentage of Earth's land is covered by glaciers. However, about 75% of the surface is covered by water.

Did the 1906 earthquake cause a tsunami if yes where

No, the San Francisco earthquake of 1906 did not cause a tsunami.

What was the reason wegeners continental drift hypothesis was rejected

His evidence was incorrect.

The trace that records an earthquake from seismic instruments is called a

magnitude

How do ancient glacial deposits in Africa India Australia and South America support the idea of continental drift

G

Related study guides

Earthquakes

17 cards

What is the Ring of Fire

What is the difference between a seismograph and a seismogram

What process occurs when an earthquake's shaking turns loose soil into mud

How would you locate the epicenter of an earthquake once you have determined the distance from the epicenter of the earthquake to each of three seismographic stations

➡️
See all cards
No Reviews

Earthquakes

17 cards

What is the Ring of Fire

What process occurs when an earthquake's shaking turns loose soil into mud

How would you locate the epicenter of an earthquake once you have determined the distance from the epicenter of the earthquake to each of three seismographic stations

How much of an increase in wave amplitude is seen from an earthquake measuring 5.4 on the Richter scale compared to one measuring 4.4

➡️
See all cards
No Reviews

Earthquakes

16 cards

What is the Ring of Fire

What process occurs when an earthquake's shaking turns loose soil into mud

How would you locate the epicenter of an earthquake once you have determined the distance from the epicenter of the earthquake to each of three seismographic stations

How much of an increase in wave amplitude is seen from an earthquake measuring 5.4 on the Richter scale compared to one measuring 4.4

➡️
See all cards
No Reviews

Earthquakes

17 cards

What is the Ring of Fire

What process occurs when an earthquake's shaking turns loose soil into mud

How would you locate the epicenter of an earthquake once you have determined the distance from the epicenter of the earthquake to each of three seismographic stations

How much of an increase in wave amplitude is seen from an earthquake measuring 5.4 on the Richter scale compared to one measuring 4.4

➡️
See all cards
No Reviews

Earthquakes

17 cards

What is the Ring of Fire

What process occurs when an earthquake's shaking turns loose soil into mud

How would you locate the epicenter of an earthquake once you have determined the distance from the epicenter of the earthquake to each of three seismographic stations

How much of an increase in wave amplitude is seen from an earthquake measuring 5.4 on the Richter scale compared to one measuring 4.4

➡️
See all cards
No Reviews