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Scientists Achieve Major Breakthrough in Forecasting Earthquakes
Despite years of searching for earthquake precursors, there is currently no method to reliably predict the time of a future earthquake. Yet, most scientists agree that some form of early warning system could save tens of thousands of lives.
Now, according to a report in BBC News, NASA scientists teamed up with experts in the UK to investigate a possible space-based early warning system.
The ionosphere is distinguished from other layers of Earth's atmosphere because it is electrically charged through exposure to solar radiation.
On a significant number of occasions, satellites have picked up disturbances in this part of the atmosphere 100-600km above areas that have later been hit by earthquakes.
One of the most important of these is a fluctuation in the density of electrons and other electrically charged particles in the ionosphere.
Though full details have yet to be released, according to the BBC, scientists observed a "huge" signal in the ionosphere before the Magnitude 7.8 earthquake in China on 12 May.
The team at NASA has also been working with Surrey Satellite Technology Limited (SSTL) in the UK, to investigate the feasibility of a satellite-based early warning system.
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