12 Questions
Which type of ground deformation is associated with the generation of earthquakes?
Surface faulting
What is the primary cause of ground cracking during an earthquake?
Soil layer breaks and causes fissures, scarps, horsts, and grabens
Which type of ground deformation is most likely to occur in sites with loose or compressible soils?
Ground subsidence
What is the primary mechanism behind soil liquefaction during earthquakes?
Fine saturated granular soils temporarily change from solid to liquid state
Which type of ground deformation is often triggered by strong earthquakes?
Landslides
What is the primary effect of surface faulting on structures during an earthquake?
Structures may be damaged when the fault slips during the earthquake
What is the primary cause of liquefaction during an earthquake?
Rapid compaction of saturated soil due to earthquake vibrations
What is the primary mechanism responsible for generating tsunamis?
Dislocation of the ocean floor due to undersea earthquake faults
Which of the following phenomena is characterized by long-period oscillating waves in enclosed water bodies?
Seiches
What is the most devastating indirect effect of earthquakes mentioned in the given text?
Fires
Which of the following statements about tsunamis is correct?
When a tsunami reaches a coastal area, its height can increase to catastrophic levels.
What is the primary mechanism responsible for generating seiches in water bodies?
Resonance between the natural frequency of the water body and the frequency of the incoming earthquake waves
Learn about surface faulting and ground cracking, two geological features associated with earthquakes. Understand how structures can be damaged by fault slip and how ground cracking occurs due to soil displacement.
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