The advancement of technology has led to excessive possibilities. New ideas have spurred to make our lives better and to protect humans from any catastrophes. The latest development is the Tsunami Warning System that is used to detect approaching tsunamis and alert far-away coasts. This serves as a global lifesaving strategy. Let us learn the details and significance of this life saving device.
Tsunami warning system on its 50th year
The Pacific Tsunami Warning System (PTWS) marks its 50th year this 2015. The organisation was established in response to the 1960 M9.5 earthquake of South Central Chile. This was the largest earthquake recorded by seismographs. A Pacific-wide tsunami was triggered, killing thousands in Japan, Hawaii, Philippines and West Coast of United States. The PTWS was organised over the decades by an international cooperation of countries under the Intergovernmental Oceanographic Commission IOC-UNESCO framework.
Deep-Ocean Tsunami Detection Buoy
The Deep-Ocean Tsunami Detection Buoy technology was developed to verify the presence of tsunami waves caused by submerged earthquake. This was developed in the United States of America by the Pacific Marine Environmental Laboratory (PMEL) of the National Oceanic and Atmospheric Administration (NOAA).
Buoys observe and record changes in sea level out in the deep oceans. The tsunami buoy system comprises of the pressure sensor and the surface buoy. The pressure sensor anchored to the sea floor measures the change in height of the water by calculating associated changes in the water pressure. The change in water column height is broadcasted to the surface buoy by acoustic telemetry and then delivered via satellite to the tsunami warning centre. In setting up the tsunami buoy it needs to be far enough from any potential earthquake epicentre. This is needed to establish that there is no obstruction amidst the earthquake signal at the buoy and the sea level signal from the tsunami.
How does the System Work
Once the Deep-Ocean Tsunami Detection Buoy sent tsunami warnings. PTWS staff analyses seismic and sea level data. Once they figured out that there is an approaching tsunami, they disseminate threat assessments to National Tsunami Warning Center around the affected areas. Then, the countries issue the tsunami warning to its people and prepare emergency response actions. The PTWS uses a network of sensors to detect tsunamis and a communications infrastructure to issue timely alarms to permit evacuation of the coastal areas.
Tsunami Watches and Warnings
There are different messages issued by the tsunami centres, these are warning, watch, advisory and information statement. The Tsunami Warning message warns that there is a possible inundating wave and residents are then advised for full evacuation. The Tsunami Advisory implies that there are strong currents and the communities are to stay away from the shore. The Tsunami Watch means danger level are not known yet and the populace is to stay alert for more information. The Tsunami Information Statement delivers message of minor waves there is no action needed. Tsunami messages may change from time to time depending on the earthquake’s magnitude and chance in the waves’ height.
Tsunami Warning System’s New Device
The Brinco is a small, round flat, and a metallic cylinder that connects to an international seismograph network and is able to provide the users with voice, flashing light and alarm alerts when an earthquake or tsunami is detected in the local vicinity. This serves as an in-house device that will warn you whenever an earthquake or tsunami is detected in the local area. Brinco can provide five, ten and more than thirty seconds of early notice before an earthquake will hit your home or office. This has an accompanying mobile application that allow users to receive alerts even when they are away from home. This will also provide users the image of earthquake activity in their area.
Tsunami Warning system works like a Wireless X-Ray that aims to save people’s life. The two devices are created to avoid loss of lives and to immediately respond in any emergency. The great thing added to these two devices is that, they already have a mobile application that can immediately notify a person. With the advancement of these tools people are more secured and safe. They are another great example that we can never do away with IT developments.