The name of the San Andreas Fault precedes itself like, well, an immense and unavoidable rift in the earth’s surface. Running some 1,300 kilometres through the US state of California and reaching a depth of 15 to 20 kilometres, the San Andreas forms the tectonic boundary between the Pacific and North American Plates. Yet because of its vast size, it’s difficult to grasp this giant geological feature; except, that is, when you look at it from above.