10 Questions
What is a characteristic of the rocks in Eastern North America that affects the distance seismic waves can travel?
They are older and harder
Which of the following earthquakes had a smaller felt area despite releasing more energy?
The 2014 California earthquake
What is a factor that scientists are researching to understand regional differences in earthquake effects?
The size and age of buildings
Approximately how far was the 2017 Delaware earthquake felt from the epicenter?
200 miles
How many times more energy did the 2014 California earthquake release compared to the 2011 Virginia earthquake?
2 times
Why do seismic waves tend to cross older rocks more effectively during an earthquake?
Because older rocks have had more time to heal
Why may older structures in the East not fare well during an earthquake?
Because they were not designed to endure earthquakes
What is a characteristic of earthquakes in the East that makes them more damaging to smaller structures?
They have higher-frequency shaking
Why did the 2011 Virginia earthquake cause significant damage in Washington, DC?
Because of the amplified ground shaking in the area
What is a reason why taller structures are more susceptible to damage during an earthquake?
Because they are more prone to slow shaking
This quiz compares the effects of two earthquakes: one in Virginia in 2011 and another in California in 2014. It explores the differences in the distance the earthquakes were felt and the damage they caused. Test your knowledge of seismic activity and earthquake measurement!
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