Recurrence interval (RI) distributions for debris flows in SW U.S.

Recurrence interval (RI) distributions corresponding to all debris flow observations in the southwestern United States for (A) 15-, (B) 30- and (C) 60-minute rainfall intensities. The x-axis is the estimated recurrence interval (RI) between rainfalls of a particular intensity, and the y-axis is the number of debris flows that were caused by that particular rainfall intensity within (A) 15, (B) 30 and (C) 60 minutes.