Abstract
This study has identified an increase in the number of reported rainfall-triggered landslides in 2010 based on a global database of reports compiled since 2007. Three test areas are identified as having an increased number of landslide reports, including Central America, the Himalayan Arc, and central eastern China, and are compared with precipitation signatures from Tropical Rainfall Measuring Mission (TRMM) data at monthly and daily time scales for a record from 1998 to 2010. Several test statistics confirm that the monthly and daily rainfall patterns were anomalous for 2010 and closely mirror the occurrence of landslide reports over each region. Findings suggest that with additional landslide information and rainfall data, we may be able to better define relationships between extreme precipitation and landslide activity at regional and global scales.
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