作者swingle (国科会计画搞定啦)
看板EarthScience
标题Havard CMT的解
时间Tue Mar 29 11:21:59 2005
March 28, 2005, NORTHERN SUMATRA, INDONESIA, MW=8.6
Natasha Maternovskaya
CENTROID, MOMENT TENSOR SOLUTION -#######---
HARVARD EVENT-FILE NAME M032805A #################--
DATA USED: GSN #####################--
MANTLE WAVES: 72S,194C, T=200 -########################--
CENTROID LOCATION: ----############## #######-
ORIGIN TIME 16:10:31.8 0.4 ------############# T ########-
LAT 1.64N 0.04;LON 96.98E 0.04 --------########### ########-
DEP 24.9 1.1;HALF-DURATION 50.3 -----------#####################-
MOMENT TENSOR; SCALE 10**29 D-CM -------------###################-
MRR= 0.25 0.00; MTT=-0.10 0.00 ----------------################-
MPP=-0.14 0.00; MRT= 0.83 0.05 ------------------##############-
MRP=-0.68 0.05; MTP= 0.14 0.00 -------------------############
PRINCIPAL AXES: ------- ------------########-
1.(T) VAL= 1.10;PLG=51;AZM= 37 ------ P --------------#####-
2.(N) 0.01; 2; 130 ----- -----------------#-
3.(P) -1.11; 38; 222 -----------------------
BEST DOUBLE COUPLE:M0=1.1*10**29 -------------------
NP1:STRIKE=329;DIP= 7;SLIP= 109 -----------
NP2:STRIKE=130;DIP=83;SLIP= 88
另外,USGS的震源机制解还是写MW8.1,理由如下
Because of the size (M 8.7) of this earthquake, point-source methods that use
only the body-wave portion of the seismogram are inadequate for measuring the
true magnitude.
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