Table 1 Parameters related to the eruptive crises.

From: Forecasting Effusive Dynamics and Decompression Rates by Magmastatic Model at Open-vent Volcanoes

 

1985

2003

2007

2014

Elevation of the effusive vent (m a.s.l.)

680 m

580 m

400 m

650 m

H reservoir (m)

70

170

350

100

Duration (days)

141

205

35

107

Mean Effusion Rate (m3 s−1)

0.45

0.61

3.16

0.60

Erupted Volume (Mm3)

5.5

10.8

9.5

5.5

Effusion Rate days 0 to 35 (m3 s−1)

0.98

1.59

3.16

1.26

Volume days 0 to 35 (Mm3)

2.9

4.8

9.5

3.8

Effective reservoir radius (m, from total volume)

87

87

87

87

Density (kg m−3)

2950

2950

2950

2950

Viscosity (Pa s)

104

104

104

104

Effective vent radius (m)

2

2

2

2

Dyke length (m)

40

40

40

40

Decompression Rate (Pa s−1) (ϕ = 0.25)

5.9 ± 0.6

14.3 ± 1.6

29.3 ± 3.5

8.4 ± 0.9

  1. Parameters of the effusive eruptions and data used in the gravity-driven discharge model (see Figure 1b). As reported in the text, most of the values (e.g., elevation of the effusive vents, vent radius, durations of the effusive eruptions) were directly observed during the effusive eruptions, while others (e.g., the total lava volumes, effusion rates) are represented as ranges because of both their uncertainties and natural variabilities; their associated errors are reported in the text.
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