Tsunamis are a series of large ocean waves generated by major earthquakes beneath the ocean floor or major landslides into the ocean. When the waves enter shallow water, they may rise to several feet or, in rare cases, tens of feet, striking the coast with devastating force. The first wave in a tsunami may not be the largest, and even waves only 1 or 2 feet high still have the capacity to move large debris, pushing it inward and causing damage and loss of life. People on the beach or in low coastal areas need to be aware that a tsunami could arrive within minutes after a severe earthquake. The tsunami danger period can continue for many hours after a major earthquake and a tsunami can occur during any season of the year and at any time, day or night. Although a tsunami cannot be prevented, the impact of it can be mitigated though proper community preparedness, timely warnings, and effective response. [Source: NOAA]
How do I prepare?
Local and National Government
What do I need to know?
The recent development of real-time deep ocean tsunami detectors and tsunami inundation models have given some coastal communities the tools they need to reduce the impact of future tsunamis; however, one should not wait for the official warnings to act, rather familiarize themselves with the natural warning signs of tsunamis and act immediately. When coast earthquakes occur, it may be only minutes before the tsunami arrives Remember, in a local event, the natural warning signs are your earliest and possibly only alert.
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