What causes the seismic waves experienced during an earthquake? Explain why there is a pattern as to where earthquakes occur. What is the difference betw
Assignment Instructions
Access this video demonstrating P and S waves before answering the following questions:
Keith Miller (2012, Jan 22)Demonstrating P and S Seismic Waves (Video). Retrieved from Youtube (https://www.youtube.com/watch?v=gjRGIpP-Qfw)
While using this video and its information, refer to the Privacy Policy.(https://policies.google.com/privacy?hl=en)
Please answer these questions in your own words. Most will require 3-4 sentences to provide enough detail (you may draw a picture to help illustrate the concept as desired).
Part A
- What causes the seismic waves experienced during an earthquake?
- Explain why there is a pattern as to where earthquakes occur.
- What is the difference between the focus of an earthquake and the epicenter?
- The energy released from an earthquake propagates as seismic waves. What is the difference between a P wave, an S wave, and a surface wave? Explain why are they recorded at different arrival times on the seismometer at a seismic monitoring station.
Part B
Visit this United State Geological Survey (USGS) site and then answer the following questions:
- Discuss some of the causes that the USGS believe are triggering the seismic activity in Oklahoma.
- Explain how the earthquakes in Oklahoma are different from the earthquakes experienced in California near the San Andreas fault.
- From what you know so far, could what is happening in Oklahoma happen in South Florida? Why or why not?
Part C
Select an earthquake (https://earthquaketrack.com/recent) with a magnitude of 7 or above that has occurred within the last 5 years, and answer the following questions:
- Wheat was the date of this earthquake, where was the epicenter located, how deep was the focus, and what was the magnitude of the earthquake on the Richter Scale?
- Are earthquakes common to this area? Take a look at the history of this general area further back in time to see if quakes are common or not.
- Was this earthquake associated with a plate boundary, and if so, what type of plate boundary? If not, what is the likely cause of the earthquakes?
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