本文件给出了基于社区的灾害预警系统（EWS）的实施指南。它描述了要实施的方法和程序，并提供了示例。 本文件适用于易受灾害影响的社区，不考虑次生/间接影响。

This document gives guidelines for the implementation of a community-based disaster early warning system (EWS). It describes the methods and procedures to be implemented and provides examples. This document is applicable to communities vulnerable to disasters, without taking secondary/indirect effects into consideration.