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

Earth, Planets and Space

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

Name	Lat. (°)	Lon. (°)	Rotation rate^a (°/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 (°)	Disl1^c (m/year)	Disl2^d (m/year)	Disl3^e (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 change^f ×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