The correct option (b) a strike-slip fault on land.
A tsunami from pronounced is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake.
Earthquakes, volcanic eruptions and other underwater explosions (including detonations, landslides, glacier calvings, meteorite impacts and other disturbances) above or below water all have the potential to generate a tsunami.
Unlike normal ocean waves, which are generated by wind, or tides, which are in turn generated by the gravitational pull of the Moon and the Sun, a tsunami is generated by the displacement of water from a large event.
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