(b) (a) 141.1 141.8 141.6 141.4 M: 12 3 LF HF 141.2 141. 14.98 14.96 14.94 14.92 14.9 5 1 3 5 7 9 11 1998 1 3 5 7 9 11 1 3 5 7 9 11 1999 1 3 5 4 M:12 3 LF HF Magnitude 3 2 1 1 3 5 7 9 11 1 3 5 7 9 11 1 3 5 7 9 11 1998 1999 1 3 5
Cumulative No. 45 4 35 3 25 2 15 1 5 98 99 1 Year Cumulative No. 1 9 8 7 6 5 4 3 2 1 98 99 1 Year Cumulative No. 25 2 15 1 5 98 99 1 Year Cumulative Number 4 35 3 25 2 15 1 5 98 99 1 Year
HF N=59 LF N=9 HF N=44 LF N=7 39 5' 5 km 5 km 39 45' 14 55' M: 1 2 3 141 ' 141 5' 14 55' M: 1 2 3 141 ' 141 5' Depth (km) -1 HF N=14 LF N=5 HF N=1547 LF N=178 39 5' 5 km 5 km 39 45' 14 55' M: 1 2 3 141 ' 141 5' 14 55' M: 1 2 3 141 ' 141 5' -1
(a) (b) MTO /1/1-/5/15 ATMP 3hPa/div 12 15 12 9 6 MTO 12 15 9 YKB 6 BSD1 (N38 ) 2 train/div 39 52' BSD2 (N128 ) 2 train/div Extention 9 12 18 BSD3 (N83 ) 2 train/div 12 9 6 GNB 6 3 ANS BSD4 (N173 ) 2 train/div 39 48' TLNS 1 radian/div TLEW 1 radian/div N-down E-down 5 km 14 52' 14 56' 141 ' 141 4' TMP1 1mdeg/div 39 44' /1 /3 /5 /7 /9 /11 /1 /3 /5 (c) 1998/1/1-/5/15 (d) 1998/1/1-/5/15 Dilatation ANS TLNS 1 radian/div N-down E-down ANS BSMD 1 train/div ANS TLEW 1 radian/div YKB BSMD 1 train/div YKB TLNS 1 radian/div YKB TLEW 1 radian/div GNB BSMD 2 train/div GNB TLNS 5 radian/div GNB TLEW 5 radian/div SEISMICITY 1count/div 1998/1 1999/1 /1 /1 Benioff trn 5.E+8/div 1998/1 1999/1 /1 /1
6 1998/6/1--/5/22 (a) DAILY NUMBER OF EVENTS DAILY NUMBER 5 4 3 2 AZM N= 127 A>4 nm/ 1 14 12 J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M 1998 1999 (b) CUMULATIVE NUMBER OF EVENTS CUMULATIVE NUMBER 1 8 6 4 2 J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M 1998 1999 DURATION (MIN) 25 2 15 1 5 AZM DURATION AMPLITUDE ( 1microm/) J 1996 FMAMJ J ASONDJ FMAMJ J ASONDJ FMAMJ J ASONDJ FMAMJ J ASONDJ FMAMJ J ASONDJ FMAM 1997 1998 1999
37º 5' 5 km SRB Mt Azuma AZM 37º 4' SAZ Mt Bandai Mt Adatara ADT M: 1 2 Depth(km) 2 4 6 8 1 14º 1' 14º 2' AZM U 1/5/11/ 9h1m. 1.5E-5 m/ AZM N 1.32E-5 m/ AZM E 8.66E-6 m/ ADT U 1.6E-6 m/ ADT N 2.64E-6 m/ ADT E 3.35E-6 m/ SRB U 4.1E-7 m/ SAZ U 6.6E-7 m/ SAZ N 7.29E-7 m/ 5 1 Lape Time ()
1/4/3/ 4h36m42.688 AZM U 1.32E-6 m/ 1 2 3 4 5 1-6 AMPLITUDE(m) 1-7 1-8 1-9 1-1 1-1 1 1 1 1 2 FREQUENCY (Hz) 1/5/1/ 2h35m18.578 AZM U 2.56E-6 m/ 1 2 1-6 AMPLITUDE(m) 1-7 1-8 1-9 1-1 1-1 1 1 1 1 2 FREQUENCY (Hz)
37 4' SAZ URB TBT AKH BND BWS RNG 5 km 14 ' 14 1' BND SAZ AKH, RNG TBT,BWS: URB 37 4' SHMZ BND URBN g i h c a d e b j OSPA f KNGM AKH BWSW GPS Tiltmeter 5 km a j 14 ' 14 1' KNGM,URBN,OSPA,BWSW,SHMZ BND AKH
14 12 (a) /4/1,:--/5/23,11:59 HOURLY NUMBER OF EVENTS BND A>5 nm/ HOURLY NUMBER 1 8 6 4 CUMULATIVE NUMBER 2 6 5 4 3 1 APR MAY JUN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY (b) CUMULATIVE NUMBER OF EVENTS N= 5349 APR MAY JUN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY
2 km Jul-Aug, 37º 35' 14º 5' 2 4 2 km Oct-Dec, 37º 35' 14º 5' 2 4 2 km Jan-Mar, 37º 35' 14º 5' 2 4 2 km Apr-May22, 37º 35' Apr.28 14º 5' 2 4
1983/1/1 :-/5/15 23:59 N=2 37.7N 139.9 14. 14.1 14.2E M-T 3. 1983/1/1-/5/15 N= 2 2.5 37.6 37.5 Mt. Bandai Magnitude 2. 1.5 1..5. 37.4 Lake Inawahiro H:Z=1: 1 -.5 84 86 88 9 92 94 96 98 25-45km (a) (b) (c)m-t 1983 5 11 1 Depth ( km ) 2 3 4 5 Magnitude 3. 4.
(a) (b) URB 12 12 14 1 VLP 37 36' o TBT BND 6 16 14 4' o Mt Bandai AKH 2 km BWS M 1 2 3 4 14 8' o o 37 35' 1 Tremor 12 1 km 14 16 Mt Bandai o 14 5' AKH Depth(km) 2 4 Depth (km) 2 (a) Diplacement Seimogmram (b) Velocity Seimogram /5/1 4.78e+3 nm /5/1 3.2e+4 nm/ /1/7 7.63e+3 nm /1/7 5.9e+4 nm/ 1/1/3 2.45e+4 nm 1/1/3 9.56e+4 nm/ 1/5/22 6.14e+3 nm 1/5/22 2.4e+4 nm/ 1 2 3 4 5 6 7 8 9 1 1 2 3 4 5 6 7 8 9 1 Lape Time() Lape Time()
(a) /6/21--/5/23 URBN-KNGM NS(1cm/div) -2983.577m EW(1cm/div) -1138.62m UD(2cm/div) 94.4m L (1cm/div) 3196.886m 1 1 2 1 1 2 1 JUN JUL AUG (b) OSPA-KNGM 1 2 1 1 2 1 1 2 1 1 2 1 SEP OCT NOV DEC 1 2 1 JAN 1 2 1 1 2 1 1 2 1 1 2 1 1 2 FEB MAR APR MAY NS(1cm/div) -9381.661m EW(1cm/div) -2867.537m UD(2cm/div) -179.215m L (1cm/div) 9816.964m 1 1 2 1 1 2 1 JUN JUL AUG (c) URBN-OSPA 1 2 1 1 2 1 1 2 1 1 2 1 SEP OCT NOV DEC 1 2 1 JAN 1 2 1 1 2 1 1 2 1 1 2 1 1 2 FEB MAR APR MAY NS(1cm/div) 6398.9m EW(1cm/div) 1729.478m UD(2cm/div) 273.216m L (1cm/div) 6636.448m 1 1 2 1 1 2 1 JUN JUL AUG 1 2 1 1 2 1 1 2 1 1 2 1 SEP OCT NOV DEC 1 2 1 JAN 1 2 1 1 2 1 1 2 1 1 2 1 1 2 FEB MAR APR MAY
(d) BWSW-KNGM /6/21--/5/23 NS(1cm/div) -7811.392m EW(1cm/div) 2444.346m UD(2cm/div) -81.762m L (1cm/div) 8189.81m 1 1 2 1 1 2 1 JUN JUL AUG (e) URBN-BWSW 1 2 1 1 2 1 1 2 1 1 2 1 SEP OCT NOV DEC 1 2 1 JAN 1 2 1 1 2 1 1 2 1 1 2 1 1 2 FEB MAR APR MAY NS(1cm/div) 4827.822m EW(1cm/div) -3582.45m UD(2cm/div) 175.771m L (1cm/div) 625.374m 1 1 2 1 1 2 1 JUN JUL AUG (f) OSPA-BWSW 1 2 1 1 2 1 1 2 1 1 2 1 SEP OCT NOV DEC 1 2 1 JAN 1 2 1 1 2 1 1 2 1 1 2 1 1 2 FEB MAR APR MAY NS(1cm/div) -157.268m EW(1cm/div) -5311.88m UD(2cm/div) -97.449m L (1cm/div) 5566.818m 1 1 2 1 1 2 1 JUN JUL AUG 1 2 1 1 2 1 1 2 1 1 2 1 SEP OCT NOV DEC 1 2 1 JAN 1 2 1 1 2 1 1 2 1 1 2 1 1 2 FEB MAR APR MAY