In the wake of the 9.0 magnitude quake and tsunami that have devastated northeastern Japan, the head of Taiwan's seismology centre said the device would give seconds or even minutes of extra time ahead of a natural disaster.

"It is expected to give us an average of 10 seconds' extra warning if earthquakes hit off the east," Kuo Kai-wen told AFP. Nearly 70 percent of Taiwan's quakes strike off the east.

"It will also allow us extra 10 minutes to issue tsunami warnings," he said.

The Tw$4.28 million ($14.5 million) sensor, 45 kilometres (28 miles) off Toucheng in Taiwan's Yilan county, is due to start working in October.

Taiwan has more than 100 quake sensors, making it -- like Japan -- one of the world's best-equipped countries with earthquake monitoring devices.

"But many of the temblors off the island had not been detected," Kuo said, adding that the centre would deploy several more seabed sensors if the government approves their construction.

Taiwan is regularly hit by earthquakes, as the island lies near the junction of two tectonic plates.

In September 1999, a 7.6-magnitude tremor killed around 2,400 people in the deadliest natural disaster in the island's recent history.

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Viscous Cycle: Quartz Is Key To Plate Tectonics
Washington DC (SPX) Mar 18, 2011
More than 40 years ago, pioneering tectonic geophysicist J. Tuzo Wilson published a paper in the journal Nature describing how ocean basins opened and closed along North America's eastern seaboard. His observations, dubbed "The Wilson Tectonic Cycle," suggested the process occurred many times during Earth's long history, most recently causing the giant supercontinent Pangaea to split into ... read more