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Question 36652

posted 1 years ago

In your own words, explain why the arrival times of P-waves and S-waves can be used to determine the distance from the earthquake to the instrument.

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Question 36646

posted 1 years ago

A, B, and C represent the first arrival of different types of seisimc waves from the same earthquake.
What type of wave is arriving at A?

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Question 36650

posted 1 years ago

What is the approximate lag time between the first P and first S-waves for an earthquake that is about 500 km away?

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Question 36647

posted 1 years ago

What type of wave is arriving at B?
A, B, and C represent the first arrival of different types of seisimc waves from the same earthquake.

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Question 36648

posted 1 years ago

A, B, and C represent the first arrival of different types of seisimc waves from the same earthquake.
What type of wave is arriving at C

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Question 36649

posted 1 years ago

The P-waves from an earthquake strike our seismic station at 3PM. The S-waves from the same earthquake arrive about 41 seconds later. We conclude that the epicenter of the earthquake is about km away.

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Question 36651

posted 1 years ago

What is the minimum number of seismic stations required to identify the location of an earthquake's epicenter?

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Question 31362

posted 1 years ago

For questions 46 through 50 please refer to Figure X5, the topographic map of the Logan Pass quadrangle, Colorado Questions 46 through 50: More True/False Note: True (a) False (b)
For each of the following statements determine whether it is true or false..
50.This area is typical of a desert landscape.
47 )The shape of the valley that extends from H2 through E4, Preston Park, is V-shaped, typical of stream carved canvons.
49.The Valley mentioned in question 47 is an example of a "hanging valley."
46.This area shows signs of past glaciation.
48 The slope gradient of the major stream in the valley mentioned in question 47 is gentler than you would expect for a youthful stream in an alpine environment.

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Question 31355

posted 1 years ago

Oceanic portions of the North American Plate (NA) have two different plate boundaries with respect to the Caribbean Plate (CB). To the east along with the South American Plate (SA) you have a:26.
a. Subduction Zone with the North American and South American plates subducting to the west underneath the Caribbean Plate (CB).
e. None of the above statements are true.
d. Transform Boundary.
b. Subduction Zone with the Caribbean Plate (CB) subducting to the east under theNorth American (NA) and South American (SA) Plates.
c. Divergent boundary.

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Question 31356

posted 1 years ago

Which of the following statements is TRUE for the plate boundary mentioned in question 26?
b. This type of plate boundary is characterized by only moderate earthquakes.
d. Both b and c are correct.
e. None of the above statements are true.
c. This is the same type of plate boundary that we see in the San Francisco Bayregion.
a. This type of plate boundary is characterized by the strongest earthquakes.

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