"Data resource surveys were mailed to nearly 1400 potential sources of natural hazards data in the winter of 1988-89. These sources were identified from existing data bases at the Natural Hazards Center as well as through a wide-ranging search for other appropriate data resources. Following the mail survey, the responses were screened and sorted, including those which provided, data, technical assistance, or services related to hazards on a regional or national basis. In addition, a follow-up telephone survey was conducted of all non-respondents believed to be maintaining valuable data resources. Those not included were primarily private for-profit firms, and state agencies with data pertaining only to a specific state"--How this directory was compiled