ocr: Hidden thrust faults don't break the surtace. Over time they can build uP hills, in the Process causing earthquakes. EARTHQUAKES Surface faults slip Sideways K - - - - - - - - - A quake occurs when the edges of two Plates suddenly slide past each other along a fault line. TIME 10/23/89
(.png)
(Time).iso/time/graphics/g_quake.pcx/g_quake.png)