Here is the solution for the recent
event.
 
February 28, 2001, WASHINGTON, Mw=6.8
Natasha Maternovskaya
Goran Ekstrom
CENTROID, MOMENT TENSOR SOLUTION
HARVARD EVENT-FILE NAME C022801C
DATA USED: GSN 
L.P. BODY WAVES: 36S,100C, T= 45
MANTLE WAVES:    30S, 70C, T=135
CENTROID LOCATION:
ORIGIN TIME       18:54:36.5 0.1
LAT 47.02N 0.01;LON 122.54W 0.01
DEP  52.9 0.8;HALF-DURATION  6.2
MOMENT TENSOR; SCALE 10**26 D-CM
  MRR=-0.97 0.01; MTT=-0.12 0.01
  MFF= 1.09 0.01; MRT=-0.03 0.02
  MRF=-1.40 0.02; MTF= 0.04 0.01
 PRINCIPAL AXES:
 1.(T) VAL=  1.80;PLG=27;AZM= 92
 2.(N)      -0.12;     0;      1
 3.(P)      -1.68;    63;    271
BEST DOUBLE COUPLE:M0=1.7*10**26
 NP1:STRIKE=183;DIP=18;SLIP= -89
 NP2:         1;    72;      -90
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  ##-----------------############ 
 ###-------   -------#############
 ###------- P -------#######   ###
 ###-------   -------####### T ###
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      ###----------##########     
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Subtract 8 hours from Greenwich Mean Time to obtain PST or 4 hours for EST
Location Quality: A (good), B (fair), C (poor), D (bad)
Magnitude: Ml (local or Richter magnitude), Lg (mblg), Md (duration), Mb (body wave), Ms (surface wave), Mw (moment)

Standard Sources Include:
U.S. Geological Survey, National Earthquake Information Center, Golden, CO (NEIC)
Harvard Geophysical Observatory, Harvard University, Cambridge, MA (HRV)
U.S. Geological Survey, Northern California Seismic Network (NCSN)
University of California, Berkeley, Seismological Laboratory (UCBSL)
California Institute of Technology, Pasadena, California (Caltech)
various wire reports and/or personal communications

All data are preliminary and subject to change.
Copyright © 2001 Advanced Geologic Exploration, Inc.
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