Table 4: Comparison of the common region between the pyroclastic flow (PF) simulation and Landsat supervised classification hazard zone in Figure 7.

Pyroclastic flow volume (m3)Orientation (direction)Common region between Landsat and PF simulation (pixels)Pyroclastic flow inundation area from PF simulation (pixels)Proportion of common region (%)

Region A 20,000EUnderestimatedUnderestimatedUnderestimated
SE
SSE
S
Total

Region B 27,000E25228488.73
SE11013482.09
SSE9013666.18
S13013894.20
Total58269284.10

Region C 30,000E25629287.67
SE11014078.57
SSE6014242.25
S13614494.44
Total56271878.27

Region E 40,000E27235676.40
SE11017064.71
SSE6017434.48
S14418080.00
Total58688066.59

Region F 50,000E27240267.66
SE11020453.92
SSE6019830.30
S14420470.59
Total586100858.13

Region G 60,000E27247457.38
SE11023047.83
SSE6023825.21
S14422663.72
Total586116850.17

Region H 70,000E27250054.40
SE11026241.98
SSE6025223.81
S14425855.81
Total586127246.07