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.
TSUNAMI â âHarbour waveâ Tsunami â are large waves that are generated when the sea floor is deformed by seismic activity Tsunami wave caused by Coastal earthquakes Under sea volcanic eruptions Under sea landslides Tsunami is not a single wave, It is series of waves.Travel at a speed of more than 800Km/hr.SUNAMI â âHarbour waveâ Tsunami â are large waves that are generated when the sea floor is deformed by seismic activity Tsunami wave caused by Coastal earthquakes Under sea volcanic eruptions Under sea landslides Tsunami is not a single wave, It is series of waves. Travel at a speed of more than 800Km/hr.