9 Questions
What is the main focus of the text?
Tsunamis
Which natural disaster is caused by underwater seismic activity?
Tsunamis
What factor contributes to the formation of tsunamis?
Underwater earthquakes
What is the primary cause of tsunamis?
Underwater seismic activity
Which type of natural disaster can trigger a tsunami?
Earthquakes
What distinguishes tsunamis from regular ocean waves?
Tsunamis travel at high speeds
What geological event is likely to trigger a tsunami?
Volcanic eruption
How do tsunamis differ from regular ocean waves in terms of wavelength and speed?
Tsunamis have longer wavelengths and slower speeds
What factor contributes significantly to the destruction caused by both earthquakes and tsunamis?
Landslides
Study Notes
Tsunamis
- Tsunamis are caused by underwater seismic activity, such as earthquakes, volcanic eruptions, and landslides.
- The primary cause of tsunamis is the displacement of large amounts of water, usually as a result of earthquakes.
- Earthquakes can trigger tsunamis, especially those with an epicenter under the ocean.
- Tsunamis are distinguished from regular ocean waves by their extremely long wavelengths, up to 100 km, and high speeds, up to 500 mph.
- Geological events, such as earthquakes and volcanic eruptions, are likely to trigger a tsunami.
- The destruction caused by both earthquakes and tsunamis is significantly contributed to by the factor of proximity to the coast, with areas closer to the coast being more vulnerable to damage.
- Underwater seismic activity contributes to the formation of tsunamis by displacing large amounts of water, which then travels at high speeds towards the coast.
Test your knowledge about tsunamis by answering questions related to the main focus of the text, the natural disaster caused by underwater seismic activity, and the factors contributing to the formation of tsunamis.
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