MQ_San Andreas

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Dec 6, 2023

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EES 0836 San Andreas Movie Questions Disasters: Geology vs. Hollywood Introduction In the aftermath of a massive earthquake in California, a rescue-chopper pilot makes a dangerous journey with his ex-wife across the state in order to rescue his daughter. - imdb.com Learning Objectives ● Critically assess the portrayal of science, earthquake behavior, and emergency response along the San Andreas fault system in the movie San Andreas (2015). (4, 5, a) Part 1: Watch the movie As you are watching the video clips, look for the answers to the following questions. 1. It’s unclear if an earthquake caused the landslide in the opening scene, but in real life, can earthquakes cause mass wasting events? How can this happen? Yes, when an earthquake occurs it causes the ground to shake, which then can cause mass wasting events. 2. Is Dr. Hayes’s prediction about the “next big one” different from how earthquakes are predicted today? scientists now use seismographs to try and keep track of when the next big earthquake will hit. Dr. Hayes used magnetic pulses. 3. If you “discovered” that there are active fault lines in Nevada, does it seem plausible that you would be able to use them to help you predict earthquakes? What is the likely reason why they are recording earthquakes in this area? (Feel free to review lecture notes.) studying this area might be able to show past occurrences and will be able to better predict future earthquakes in the same area they occurred previously. 4. Is evacuating a building the best course of action during an earthquake? If not, what is? if there is time, I think evacuating the building is the best approach, but if there is not any time; getting as low to the ground as possible and staying far away from windows is the next best course of action to take. 5. Whoa, that’s a lot of destruction! You can clearly see seismic waves propagating across the landscape. What type of wave do you think this is? Explain your reasoning. I think they are S waves because they are very dangerous and make the ground shake and move in different directions as shown in the movie.

EES 0836 6. Dr. Hayes explains on the news that San Francisco will “get hit again, with a 9.5M event or higher. It will be so big that people on the east coast will feel it.” What is wrong with this statement? Dr. Hayes’ statement is problematic for several reasons. It mentions an extremely high earthquake magnitude of 9.5 or higher, which is unrealistic and not predictable with such precision. Additionally, suggesting that people on the east coast would feel the effects of an earthquake in San Francisco with specific magnitudes and distant impacts, are beyond current scientific capabilities. 7. The Rock and his wife are warned that the road is out ahead. They come to a place where the earth has been displaced. There are two types of faults here. Name one of them and explain your reasoning. ( If you can name them both, that would be awesome! ) One is a thrust fault, which occurs when rocks are pushed together, leading to one side moving up and over the other side, potentially causing a steep slope or displacement in the road. The other is a normal fault, which occurs when rocks are pulled apart, causing one side of the road to drop down relative to the other, potentially creating a depression or gap in the road. 8. How does the Rock know that a tsunami is coming? What is this part of the wave actually called? The Rock might assume that a tsunami is on the way by noticing a type of wave called a “Tidal Bore.” This wave goes against the usual direction of the water in a river and can be very strong. He would see it when the water begins to act strangely, makes a loud noise, rises quickly, and looks like a big wall of water. 9. What is wrong with how the tsunami wave is depicted? In the movie, the way tsunamis are shown is not accurate to how they are in real life. They are much bigger and faster in the movie. In reality, tsunamis can be of different sizes and do not happen right after an earthquake. The characters in the movie also escape from tsunamis in ways that would not work in a real situation. 10. Why would you NOT see a local tsunami occur in the San Francisco area? Local tsunamis are unlikely to occur in the San Francisco are due to its tectonic setting and geographical factors. The region is not near a subduction zone, which is a common source of tsunamis, and its underwater topography is not well-suited for generating significant tsunamis.

EES 0836 While the area can still experience distant-source tsunamis from events farther away, the impact is typically less severe. 11. As the parents are looking for their daughter, the water is no longer moving inland. Should our heroes be concerned about anything else? Why/why not? If the water is no longer moving inland during a tsunami, our heroes should still be concerned about potential dangers. They need to be aware of the possibility of backflow or additional waves, hazards from debris, structural damage, aftershocks, ongoing flooding, and contamination. 12. The aerial shot at the end?!?! Really again with this misconception? What happened? Why is this not valid? 13. In the movie, the dramatic aerial shot at the end featuring a massive tsunami wave is a cinematic exaggeration for entertainment purposes. It does not accurately depict how real tsunamis behave. Tsunamis in reality have long wavelengths and do not typically form towering mega-waves like those seen in the film. While visually thrilling, its crucial to recognize that this portrayal is a creative exaggeration for dramatic effect and not an accurate representation of tsunamis.

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