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Author Question: Describe the composition of a cinder cone. ... (Read 26 times)

ARLKQ

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on: Aug 7, 2018
Describe the composition of a cinder cone.

Question 2

Explain, in general terms, how the moment magnitude earthquake scale works. For example, is a magnitude 2.0 earthquake slightly smaller than a magnitude 3.0, and half as energetic as a magnitude 4.0?


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rleezy04

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Reply #1 on: Aug 7, 2018
Answer to Question 1

Cinder cones, which are the smallest type of volcano, usually consist of predominantly gravel-sized pyroclastics. Gas-charged eruptions throw molten lava and solid pyroclastic fragments into the air. Falling under the influence of gravity, these particles accumulate around the almost pipe-like conduit for the eruption as a large pile of tephra.

Answer to Question 2

A magnitude 3.0 earthquake is actually much larger than a magnitude 2.0 because every whole number increase in magnitude represents amplitude that is 10 times greater and approximately 32 times more energy is released.


ARLKQ

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Reply 2 on: Aug 7, 2018
Wow, this really help

Sarahjh

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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