It sounds like a disaster waiting to happen – but scientists have just set off thousands of earthquakes deep beneath the Swiss Alps.
The controversial experiment was carried out by researchers from ETH Zurich in a bid to ‘understand what happens at depth when Earth moves.’
To trigger the earthquakes, the researchers injected 750,000 litres of water into the ground via two boreholes over 50 hours.
Despite an unexpected power outage, the experiment proved a success, with a total of 8,000 tiny quakes triggered.
‘While some seismic events occurred on the target fault zone, a large number of events took place on neighbouring geological
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