|
Event date
|
Methoda
|
Caseb
|
Volumec (×106 m3)
|
Mass (×109 kg)
|
|---|
|
Fallout deposit and proximal pyroclastic density current deposit
|
|
27 September
|
a
|
1
|
0.77–1.1 (0.31–0.46)
|
0.77–1.1
|
|
27 September
|
a
|
2
|
0.67–1.3 (0.27–0.52)
|
0.67–1.3
|
|
27 September
|
b
|
1
|
0.70–1.2 (0.28–0.49)
|
0.70–1.2
|
|
27 September
|
b
|
2
|
0.77–1.4 (0.31–0.54)
|
0.77–1.4
|
|
27 September
|
c
|
1
|
0.63–1.4 (0.25–0.56)
|
0.63–1.4
|
|
27 September
|
c
|
2
|
0.74–1.2 (0.30–0.48)
|
0.74–1.2
|
|
Event date
|
Methodd
| |
Volumec (×106 m3)
|
Mass (×109 kg)
|
|---|
|
Pyroclastic density current deposit in S and W slopes
|
|
27 September
|
d
|
Max
|
0.072 (0.029)
|
0.072
|
|
27 September
|
d
|
Min
|
0.036 (0.015)
|
0.036
|
|
27 September
|
e
|
Max
|
0.03 (0.01)
|
0.03
|
|
27 September
|
e
|
Min
|
0.005 (0.002)
|
0.005
|
-
aMethod for fallout: (a) integrating log[mass per unit area (kg/m2)] versus log[area (m2)], (b) exponential fitting for log[thickness (m)] versus [area (m2)]1/2, (c) Weibull fitting for log[mass per unit area (kg/m2)] versus [area (m2)]1/2
-
bCase: Cases 1 and 2 represent calculations that include and exclude proximal isopach data, respectively
-
cVolume in parentheses is DRE (dense rock equivalence) value
-
dMethod for PDC: (d) 2 cm and 1 cm in average thickness were assumed for maximum and minimum cases, respectively, (e) Scaling analyses using a depth-averaged gravity flow model
