回首页


2005年3月29日印尼苏门答腊北部8.5级地震震源机制
　　
USGS Fast Moment Tensor Solution

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. 
 05/03/28 16:09:37.06
 NORTHERN SUMATRA, INDONESIA     
 Epicenter:   2.093   97.016
 MW 8.1

 USGS MOMENT TENSOR SOLUTION
 Depth  21         No. of sta: 17
 Moment Tensor;   Scale 10**21 Nm
   Mrr= 0.26       Mtt=-0.20
   Mff=-0.07       Mrt= 1.12
   Mrf=-1.04       Mtf=-0.20
  Principal axes:
   T  Val=  1.70  Plg=47  Azm= 45
   N       -0.33       3      312
   P       -1.37      43      219

 Best Double Couple:Mo=1.5*10**21
  NP1:Strike=251 Dip= 4 Slip=  29
  NP2:       132     88        93
                                      
               -------                
          --##############-           
        -####################         
      -########################       
    #---########################-     
   #------#############   ########    
   ---------########### T ########    
  ------------#########   #########   
  --------------###################   
  ----------------#################   
  ------------------###############   
  --------------------#############   
   --------   ----------##########    
   -------- P ------------########    
    -------   ---------------####     
      -------------------------       
        ---------------------         
          -----------------           
               -------

Moment Tensor Solution

　

Harvard Moment Tensor Solution

Magnitude 8.7 NORTHERN SUMATRA, INDONESIA
Monday, March 28, 2005 at 16:09:36 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver 

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
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
 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

            -#######---           
        #################--       
      #####################--     
    -########################--   
   ----##############   #######-  
  ------############# T ########- 
  --------###########   ########- 
 -----------#####################-
 -------------###################-
 ----------------################-
 ------------------##############-
  -------------------############ 
  -------   ------------########- 
   ------ P --------------#####-  
    -----   -----------------#-   
      -----------------------     
        -------------------       
            -----------

　
关闭窗口