While the prompt lists fewer than five signs, based on available information and common knowledge, here are five signs that a tsunami might be approaching:
- Strong or Long-Lasting Earthquake: A significant earthquake, particularly one that lasts for a considerable time, is a primary indicator that a tsunami may be generated. The closer the epicenter is to the coast, the greater the risk.
- Loud Roar from the Ocean: A sudden, loud roar emanating from the ocean, often described as sounding like a train or airplane, can signify the arrival of a tsunami. This sound is caused by the approaching wave.
- Unusual Ocean Behavior: This encompasses a range of atypical changes in the sea.
- Sudden Rise in Sea Level: The ocean may appear to rise rapidly, flooding coastal areas in a manner resembling a fast-rising tide or a wall of water.
- Unusual Withdrawal of Water (Rapid Receding Tide): The sea may recede unexpectedly far, exposing the sea floor, reefs, and fish. This is often a dramatic and obvious sign.
