earthquake: a shaking of the ground caused by movement of the Earth's crust prone to tremors: likely to suffer from earthquakes earths crust: the Earth's surface broken and fragmented: split into small parts North Anatolian Fault: one of several areas, such as the San Andreas Fault in North America, where earthquakes are common built up areas: usually inner cities with a large number of buildings and therefore a large population sediment: soft deposits quicksand: a deep soft sand which people can easily sink inot when walking on it to withstand: to resist |