seismology

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Question 36652

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Seismology

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.

Question 36651

Verified

Seismology

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

Question 36650

Verified

Seismology

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

Question 36649

Verified

Seismology

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.

Question 36648

Verified

Seismology

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

Question 36647

Verified

Seismology

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.

Question 36646

Verified

Seismology

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?

Question 32050

Verified

Seismology

1. How does the theory of plate tectonics explain the recycling of old oceanic crust and the formation of new oceanic crust?

2. Describe a complete Wilson Cycle, as presented in Topic in Depth 2.10.

3. Compare and contrast the geologic characteristics of the continental margins of the west and east coasts of North America.

4. Explain the significance of volcanic hot spots. How do they relate to the development of chains of islands and seamounts?(See Topic in Depth 2.6; or access animation at:https://www.iris.edu/hq/inclass/animation/hotspot_volcanic_island_stages_in_the_life

Question 31362

Verified

Seismology

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..

47 )The shape of the valley that extends from H2 through E4, Preston Park, is V-shaped, typical of stream carved canvons.

50.This area is typical of a desert landscape.

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.

Question 31361

Verified

Seismology

For each of the following statements indicate the volcanic construct that BEST matches.

43.Flood Basalt.

40 ) Composed of alternating layers of lava and pyroclastic material (tephra).

38.Shield Volcano.

44.Explosive eruptions.

39.Dominated by pyroclastics (tephra).

42.Most associated with oceanic Hot Spot settings.

37.Composite cone (strato volcano).

41. Mostly associated with Subduction Zone settings.

45.Dominated by lava flows.

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