Nevada's first platinum-certified LEED (Leadership in Energy and Environmental Design) buildings stand proudly here, constructed of recycled materials and rammed-earth walls, with passive cooling, renewable heating, reclaimed water and solar-electricity panels, all harvesting clean energy.

BBC: Discover life in the Nevada desert

The largest earthquakes in the world occur close to plate margins, areas of the Earth's upper layers that are being rammed together or pulled apart.

BBC: Q&A: UK's small-scale earthquakes