GEOLOGY

EARTH SCIENCE

NATURAL HAZARDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the cause of this tsunami?
A
a typhoon moving inland
B
a sudden violent windstorm above the ocean water
C
the impact of a large meteorite in the ocean
D
an earthquake beneath the ocean
Explanation: 

Detailed explanation-1: -A tsunami is a series of enormous waves created by an underwater disturbance usually associated with earthquakes occurring below or near the ocean. Volcanic eruptions, submarine landslides, and coastal rock falls can also generate a tsunami, as can a large asteroid impacting the ocean.

Detailed explanation-2: -By far, the most destructive tsunamis are generated from large, shallow earthquakes with an epicenter or fault line near or on the ocean floor. These usually occur in regions of the earth characterized by tectonic subduction along tectonic plate boundaries.

Detailed explanation-3: -Most tsunamis are caused by earthquakes on converging tectonic plate boundaries.

Detailed explanation-4: -A continental plate is dragged down and bent by an oceanic plate. The continental plate cannot bend any more and snaps back, pushing the seawater up. The seawater spreads in all directions as a tsunami and reaches land, sometimes hours later.

There is 1 question to complete.