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.

No abstract

No abstract

No abstract

No abstract

No abstract

Forms scarps and affects local base level in small rivers. In the states of Sergipe and Alagoas, this fault (lineament) establishes the contact between the regions comprised of internal plateaus and the coastal tablelands. In the state of Bahia, the fault establishes the margin of the Mezosoic Tucano-Jatobá basins and the Recôncavo basin, where it has a very impressive scarp. RECURRENCE INTERVAL: Unknown SLIP RATE: Unknown, probably <1 mm/yr. TIME OF MOST RECENT OF MOVEMENT: Quaternary (< 1.6 Ma) Comments The timing is based on geomorphological evidence and on faults that affect Pliocene sediment of the Barreiras Group. It is probable that, at least in the state of Bahia, fault activity extends to the Holocene, as is suggested by evidence of subsidence in the Todos os Santos Bay.

No abstract