According to the National Oceanographic and Atmospheric Administration, a hurricane is a cyclonic storm that forms over tropical or subtropical waters and has sustained wind speeds of at least 74 mph, while a tsunami is a tidal wave created by an earthquake or underwater volcano. Hurricanes and tidal waves both can be extremely dangerous to those living near the coastline.Know More
Hurricanes occur when warm, calm ocean waters create convection air currents. As warm air rises, it creates a zone of low pressure, drawing in more air from outside areas. This motion carries moisture into the atmosphere, creating high level clouds and causing them to rotate. If the storm remains over warm water long enough, its winds may reach 74 miles per hour, at which point it becomes a hurricane. Hurricanes can push ocean water ahead of them, creating storm surges and dangerous waves, but these are markedly different from tsunamis.
A tsunami occurs when an earthquake or volcanic eruption creates a shockwave on the ocean's surface. This wave may only be a few feet high in the deep ocean, but its energy and height can increase as the storm travels into shallower water. Depending on the waveform, water may actually retreat from the shoreline before the tsunami strikes land for the first time.Learn more about Storms
The main difference between a hurricane and a tornado is that hurricanes form over warm water while tornados form over land. As of 2014, the largest tornado ever recorded was 2.5 miles wide, while hurricanes can measure over 1,000 miles wide.Full Answer >
A hurricane is a tropical cyclone with sustained winds reaching speeds of at least 74 miles per hour, according to The Weather Channel. Hurricanes are classified on a scale of 1 to 5 using the scale Saffir-Simpson hurricane wind scale.Full Answer >
A tsunami's time of danger can last for several hours after the first wave has hit the shore. A tsunami is a series of waves or surges that can hit at intervals of 5 minutes to 1 hour. There is no direct method to predicting the precise amount of time that a tsunami poses a threat to people in the area, as the surges make it appear as if the ocean water is retreating before advancing again upon the shore.Full Answer >
A tropical disturbance is a meteorological event in tropical or subtropical waters that maintains its area of organized convection for at least 24 hours. These disturbances, which have a nonfrontal migratory character, are typically 100 to 300 nautical miles in diameter.Full Answer >