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Table 2 Assumed and estimated (italic type) parameters for the base model

From: Crustal deformation model of the Beppu−Shimabara graben area, central Kyushu, Japan, based on inversion of three-component GNSS data in 2000–2010

Name Lat. (°) Lon. (°) Rotation ratea (°/m/year)
Euler pole of rigid block for block [1]
 [2] 35.59 131.98 1.14
 [3] 29.44 132.73 1.37
 [4] 27.19 140.46 0.36
 [5] 32.21 131.05 2.42
Name Lat.b (°) Lon.b (°) Dep.b (m) Leng. (m) Width (m) Dip (°) Strike (°) Disl1c (m/year) Disl2d (m/year) Disl3e (m/year)
Dislocation on block boundary and subduction plate interface
 N1 33.90 130.43 1000 78,341 12,500 90 145 0.004 0.001 (0)
 N2 33.32 130.91 1000 23,386 12,500 90 132 (0) (0) (0)
 C1 33.38 131.80 1000 48,611 14,400 60 253 0.007 0.002 (0)
 C2 33.25 131.30 1000 37,363 12,500 90 209 0.003 0.006 (0)
 C3 32.96 131.11 1000 34,611 14,400 60 233 0.001 0.001 (0)
 C4 32.77 130.81 1000 44,083 12,700 80 212 0.008 0.007 (0)
 C5 32.43 130.56 1000 56,266 12,500 90 229 0.004 0.000 (0)
 U1 33.25 131.30 1000 122,536 12,500 90 249 (0) (0) (0)
 H1 32.43 130.56 1000 100,000 12,500 90 118 (0) (0) (0)
 T1 32.70 133.30 15,000 113,689 95,000 11 244 0.011 0.046 (0)
 T2 32.50 132.55 10,000 77,510 1e + 05 8 200 0.003 0.012 (0)
Name Lat. (°) Lon. (°) Dep. (m) Volume changef ×106 (m3/year)
Point source of volcano deformation
 Kuju 33.09 131.25 5000 0.653
 Aso 32.88 131.09 7000 1.464
 Unzen 32.76 130.25 11,000 1.068
  1. aPositive value means counterclockwise rotation
  2. bLocation at a northern corner of an upper edge of a rectangular fault
  3. cPositive value means left-lateral strike slip
  4. dPositive value means reverse dip slip
  5. eTensile component is fixed to be zero
  6. fPositive value means inflation of magma reservoir