Seismic waves - Study guides, Class notes & Summaries

How do earthquake early warning systems work? - ️️seismic waves travel below the speed of light; therefore, a warning can arrive seconds before an earthquake (since EM radiation travels at the speed of light) Why does the mantle below the asthenosphere not flow easily? - ️️it is at higher pressure than the asthenosphere Why does the US Geological Survey believe there is high seismic hazard in the Midwest? - ️️historical data from previous earthquakes shows that a 500 year old fault...

ISP 203B Final Exam 100% Solved The scientific method - answer1. observe 2. formulate a hypothesis 3. test/falsify the hypothesis 4. theory What is science: - answerobservation, formulation and falsification of hypotheses, the development of a scientific theory. Recurrence intervals: - answerTime span (in years) until today over which these combined events took place / number of events that meet the criterion (geographical area and minimum magnitude, for example) -ex: 50 years / 10 ear...

Week 8 Final Exam (timed and single access) Return to Assessment List Part 1 of 4 - 52.0/ 52.0 Points Question 1 of 50 2.0/ 2.0 Points Which of the following surficial processes results in the most poorly sorted sediments?  A. rivers  B. glaciers  C. ocean waves  D. deep marine  E. wind Question 2 of 50 2.0/ 2.0 Points What information is needed to determine the distance from the epicenter of an earthquake to a seismic receiving station?  A. The amplitude o...

1. Objects under water appear 60 percent larger than they do on land. ANS true 2. As you descend ANS Colors appear to fade. Reds and oranges are among the first colors to disappear. At 30 m/99 ft, little color remains other than blues, grays, blacks and whites. All of the above. 3. Because sound travels faster under water ANS It is harder to determine the direction from which a sound is coming. 4. Which of the following is/are true? ANS Water conducts heat away from your body 25 times f...

If a xenolith included within an igneous pluton has a numerical age of 55 million years (Ma) old, what can you infer about the age of the pluton? - Answer-the pluton formed after 55 Ma ago Radiocarbon is first produced in the ______ when neutrons strike ______ atoms. - Answer-atmosphere; nitrogen-14 A minimum of ______ seismic stations is necessary to determine the focus of an earthquake. - Answer-3 Which seismic wave will be the last to reach a seismic station following an earthquake? - An...

Elastic modulus ~ Relative stiffness of a material; ratio of elastic stress to elastic strain Strength ~ Stress level when failure/yield occurs for a given material Cohesion ~ Shear strength of a material not dependent on normal pressure Friction ~ Shear strength of a material that is dependent on normal pressure Ductility ~ Relationship between stress and strain after the yield of a material has been reached Porosity ~ The percentage of the total volume of a rock or sediment that c...

ISP 203B Final Exam 100% Solved The scientific method - answer1. observe 2. formulate a hypothesis 3. test/falsify the hypothesis 4. theory What is science: - answerobservation, formulation and falsification of hypotheses, the development of a scientific theory. Recurrence intervals: - answerTime span (in years) until today over which these combined events took place / number of events that meet the criterion (geographical area and minimum magnitude, for example) -ex: 50 years / 10 ear...

ISP 203B Final Exam 100% Solved The scientific method - answer1. observe 2. formulate a hypothesis 3. test/falsify the hypothesis 4. theory What is science: - answerobservation, formulation and falsification of hypotheses, the development of a scientific theory. Recurrence intervals: - answerTime span (in years) until today over which these combined events took place / number of events that meet the criterion (geographical area and minimum magnitude, for example) -ex: 50 years / 10 ear...

GY 102- Topic 4B Correctly Answered Questions 2024. Rank the different seismic waves according to their speed, with the fastest on top. - CORRECT ANSWER 1.Primary wave 2.Secondary wave 3.Surface wave Match the hazard associated with basaltic eruptions to the harm caused by it. - CORRECT ANSWER Volcanic bomb- being hit by this large, flying blob of hardened lava could severely hurt or kill a person Volcanic ash- breathing in this microscopic volcanic glass causes lung damage Volca...

Geology 111 Exam Questions And Answers (Verified And Updated) Most natural disasters are which of the following? - answerrarely if ever cyclic because there are too many overlapping effects The costs of catastrophic events continue to increase primarily because ____. - answermore people are moving into areas at high risk for natural disasters When is a large event such as a major earthquake not a disaster? - answerwhen it happens in an area without any people Which of the following was t...