Many people acted heroically in the aftermath of Hurricane Katrina. The Coast Guard, for instance, rescued some 34,000 people in New Orleans alone, and many ordinary citizens commandeered boats, offered food and shelter, and did whatever else they could to help their neighbors.
Tidal waves, or tides, are a predictable, com-mon occurrence along coastal communities, generated by forces beyond Earthâthe gravitational pull of the sun and moon. However, tsunamis are not predictable. They are often generated by earth-quakes, volcanic activity, and slope failure.idal waves, or tides, are a predictable, com-mon occurrence along coastal communities, generated by forces beyond Earthâthe gravitational pull of the sun and moon. However, tsunamis are not predictable. They are often generated by earth-quakes, volcanic activity, and slope failure.
It is true that both of these types of waves may be very destructive. However, there is a significant difference between tsunamis and tidal waves based on their origins and characteristics. A tidal wave is quite a predictable event impacted by the atmosphere.It is a result of the daily tides caused by the imbalanced, gravitational influences of the Moon, Sun, and planets (hence the name). Tidal waves are most pronounced in narrow bays or in rivers along the coast.lthough, the impact of a tsunami could be influenced by the tidal level at the time it strikes. Bonus Facts: 1  The highest tidal waves are found in the Bay of Fundy, in the Canadian province of New Brunswick, where the water level can rise with the tide by 50 feet.