Abstract
For some remote areas of Iran, as for other parts of the world, accurate and reliable details of the occurrence of earthquakes have only been available for events of the past 25 years. This paper provides a new approach to the problem of establishing the seismicity of eastern Iran, by examining not only the instrumental data, but also the literary and historical sources of information. Despite the fact that the data concerning Kuhistan is poor in comparison with some other areas of Iran, it has nevertheless been possible to identify several major earthquakes which have occurred there since the thirteenth century. These have been described within their tectonic context, often on the basis of field studies of the areas indicated by the historical account of the event. In addition, field studies of some of the earlier earthquakes of this century have made it possible to relocate these events more accurately by supplementing the meagre instrumental data available. A study of this kind, with a long historical perspective, indicates areas of high seismicity that are apparently quiescent today and, taken in conjunction with similar information for the rest of the country, suggests a definite tectonic framework for the major earthquakes in Iran.
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