What kind of fault movement will create a tsunami?

Explanation:

The scientific community is working to better understand these faults. Earthquakes generally occur on three types of faults: normal, strike-slip, and reverse (or thrust). Tsunamis can be generated by earthquakes on all of these faults, but most tsunamis, and the largest, result from earthquakes on reverse faults.

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I THINK IT'S BECAUSE THE EARTH UNDER THE SEA SHIFTS AND THE VIBRATION OF THE WATER GETS BIGGER UNTIL IT BECOMES A TSUNAMI. BRAINLIST ???

the correct answer is a