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Nation | Zone | Threshold type | Landslide code | Equation | Range | Notes | Reference | Image |
| Puerto Rico | n.a. | ID | D | I = 66.18×D-0.52 | 0.5 < D < 12 | n.a. | Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55 | Graphic |
| Puerto Rico | n.a. | ID | A | I = 91.46×D-0.82 | 2 < D < 312 | n.a. | Larsen MC, Simon A (1993) A rainfall intensity-duration threshold for landslides in a humid-tropical environment, Puerto Rico. Geografiska Annaler Series A-Physical Geography 75(1-2): 13-23 | Graphic |
| Puerto Rico | n.a. | IMAPD | D | IMAP = 0.06×D-0.59 | 1 < D < 12 | n.a. | Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55 | Graphic |
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