The processes that have formed the earth continually act on or beneath its surface.The movement of plates in the earth's crust and local concentrations of heat are a continuing source of hazards to people and their structures.Geologic events are distinctive for their extremely rapid onset.Unlike a flood or hurricane, whose impact at a site can be forecast hours or days in advance, earthquakes give virtually no warning.In addition to speed of onset, geologic hazards also tend to have impacts covering large areas.
But in the cyberage, when even the verb "to type" is being replaced with the verb "to keyboard," typewriter repair is an endangered art. The resurgence of interest in typewriters among creative people has led to increased business for many of the surviving shops, and some young people are learning to repair typewriters.) This page lists businesses around the world that practice the art of typewriter repair. Please contact me, Richard Polt, with information about people you can recommend in your part of the globe that will work on typewriters.Landslides are an exception: they can often be prevented.Areas prone to such events can be identified as earthquake fault zones, active volcanoes, and coastal areas susceptible to tsunamis.However, not all earthquake faults have been identified.Estimates of an occurrence of a given hazardous event are probabilistic, based on consideration of the magnitude of an event and its occurrence in time and space.