for future landslide activity is evidence of past landslide activity. For this reason, landslide inventory maps showing Quaternary, historic, and modern landslides are of criti cal importance and should continue to be compiled. Useful tools for predicting the occurrence of rainfall-triggered landslides in populated areas are rainfall intensity/duration thresh olds. New and existing rainfall and landslide data could be used to develop two thresh olds for Guatemala, one for debris flows triggered by intense bursts of rainfall, and one for deep-seated landslides triggered by prolonged rainfall.

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