The head of a geothermal energy company has gone on trial in Switzerland accused of damaging property by triggering earthquakes. Markus Haering's company had been working with the authorities in Basel to try to convert the heat in deep-seated rocks into electricity. But the project was suspended in 2006 when drilling triggered the quakes. They caused no injuries but led to $9m (£5.54m) of damage. Mr Haering denies deliberately damaging property. The project was shut down permanently last week after a government study found that similar quakes caused by the project would lead to millions of dollars worth of damage each year.