ふふ

4 ┷

ふ

PS ふ

ぜ┘ 2003 9 26 2003 M8.0 2004

26 M9.0 GPS ふ

ふPS TEC Total Electron Content ふ

ECふ2 ㈻

2 TECTotal election content ゝ ふ M7.5 ふ

Fig2 E,Calais et al(1998)

ふ GPS TECふ

Fig3 1 ぜ ぜGPS み み

24

E,Calais et al{1998} Ionospheric signature of surface mine blasts from Global Positioning System measurements.GJI.Vol.132,191-202

H,kanamori et al{1994} Excitation of atmospheric oscillations by volcanic eruptions. JGR.Vol.99,No.B11,21947-21061

J.Artru et al{2004}Acoustic waves generated from sesmic surface wave:propagation properties determined from Dopplersounding observations and normal-mode modelling GJI.Vol.158,1067-1077

V.Ducic et al{2003} Ionospheric remote sensing of the Denali Earthquake Rayleigh Surface waves. GRL.Vol.30.No18,ab#S12A-0370

┘├ 1.25km/s

㍂ ∞ 20.0210

Fig4 3 Fig4 1 ふ 2004/12/26㍂ ㍂ TEC

1.25km/s ゝ13 23

ぜ 20TEC

TECU 3TECUぜ

ふ 1996/8 Black-Thunder ふ 2

Fig2 1 ㍂ ㍂ GPSIP

1.2km/s ぞ

TEC ふ

Sub-Ionospheric Point GPS├ 350km Ⅴ Ⅴ350kmⅤ Ⅴ

2001/6/23 TEC ふ ig2 2

Fig2 2

Fig2 2

㍂ ㍂

ゝ1.5~2.5km/s

2ゝ ゝ ├

TEC ふ M6.5 ふ

ふ 1999/9/20 Chi-Chi M7.6 ふ 2 3

Fig2 3 J,Artru et al 2004

Fig2 3 1~50mHz 1-100mHz㍂ ㍂

2 168km186km ふ ゝ

1-D ゝ

10┞

ふ

GPS GPS ゝⅤ ゝ Fig3 1

GPS 300 SIP TEC ゝ

TEC

Fig3 1

TEC Fig4 1

Fig4 1

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GPS

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GPS Fig4 2

4 2 ㍂ ㍂ ″ SIP TEC

Ⅴ ├ ├

├

2 3Fig2 1 Fig4 2 1.2km/s

ふ Ⅴ

├├ Ⅴ Ⅴ

ふ ぜ

ふ ふ├ ふ

ふ ┘ 2 ┘ ぜ

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Fig4 3