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Different ways of Detecting Tsunami

A natural disaster like a tsunami cannot be stopped, but early warnings can help in saving people and containing the damage it can cause to a large extent.

Coastal tidal gauges can identify a tsunami closer to the shore.

Tsunami detectors are placed in the sea about 50 km. from the shore.

They are linked to the land by submarine cables.

The detectors record any disturbances in the sea and transmit it to the land through the cables.

These detectors can only identify tsunamis closer to the sea.

Now, satellite technology has made it possible to detect tsunami genic earthquakes almost immediately. The warning time depends on the distance of the epicentre from the coast line.

The warning includes predicted times the tsunami may hit different coastal cities, where the tsunami could travel in a few hours.

Deep-ocean Assessment and Reporting of Tsunamis (DART) Project was developed by the U.S. National Tsunami Hazard Mitigation Program. It strives at early tsunami detection and real-time reporting capability.

Tsunameter and Buoys used by DART System

Now that technology has improved to enable early warnings of tsunamis, it is the duty of the state to be prepared, to meet the eventuality and ensure minimum harm to its citizens.

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