McColl and Cook reported a classification for the size of a landslide. The authors are from GNS Science in New Zealand and the University of Dundee.
This follows 10-fold increases, allowing for LOG10 strata.
Parameters:
(1) minimum volume in cubic meters, expressed in LOG10
(2) minimum area in square meters, expressed in LOG10
Volume ranges from 10^(-3) to 10^15 cubic meters.
Area ranges from 10^(-4) to 10^12 square meters.
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Figure 5
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LOG10 area
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LOG10 volume
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very small
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<=1
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<=1
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small (a)
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<2.69
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1.001 to 3
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small (b)
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1.001 to 2.69
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<=1
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medium (a)
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<6
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3.001 to 6
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medium (b)
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2.69 to 6
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<=3
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large (a)
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< 8
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6.001 to 9
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large (b)
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6.001 to 8
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<= 6
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giant (a)
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< 10
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9.001 to 12
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giant (b)
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8.001 to 10
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<= 9
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monster (a)
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NA
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>12
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monster (b)
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10 to 12
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<=12
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where:
• LOG10(500) = 2.69
Each zone is further subdivided into 3 zones corresponding to LOG10,
