• Ntw, Nsg: number of time-windows, and number of fault segments, respectively
• LEN, SHF: length (in sec) of slip-function, and the overlap (in sec) of successive time-windows
• SVF: type of slip-velocity function used in the inversion
• In the Data-section, the number of stations are listed for the different types of data used in the inversion; PHmx is a rough estimate of the maximum angle between any two neighboring stations (ie. PHmx > 180 deg means the event was outside the observational array). Rmin estimates the distance of the closest station to the nearest point on the fault.
  We make a special case for InSAR data wherein NoS refers to "number of InSAR data points", and PHImx corresponds to "number of independent interferograms".
• Data on the velocity-density structure at the source is preceeded by the corresponding number of layers.
• Nsbfs: number of sub-faults, either for the single-plane rupture or given for each segment separately.

The format for 'single segment' model and 'multi-segment' model differs slightly.

An example for single segment model:

% ---------------------------------- FINITE-SOURCE RUPTURE MODEL -------------------------------- %
% Event : Yamaguchi (Japan) 06/25/1997 [Ide (1999) ]
% EventTAG: s1997YAMAGU01IDEx
%
% Loc : LAT = 34.441 LON = 131.676 DEP = 7.5
% Size : LEN = 16.0 km WID = 12.0 km Mw = 5.81 Mo = 5.86e+17 Nm
% Mech : STRK = 235.0 DIP = 86.0 RAKE = 182.0 Htop = 0.1 km
% Rupt : HypX = 6.00 km HypZ = 7.00 km avTr = 4.2 s avVr = 3.0 km/s
%
% ---------------------------------- inversion-related parameters --------------------------------
%
% Invs : Nx = 17 Nz = 13 Fmin = 0.10 Hz Fmax = 2.00 Hz
% Invs : Dx = 1.00 km Dz = 1.00 km
% Invs : Ntw = 13 Nsg = 1 (# of time-windows,# of fault segments)
% Invs : LEN = 0.6 s SHF = 0.3 s (time-window length and time-shift)
% SVF : triang (type of slip-velocity function used)
%
% Data : SGM TELE TRIL LEVEL GPS INSAR SURF OTHER
% Data : 0 10 0 0 0 0 0 0
% PHImx: 0 79 0 0 0 0 0 0
% Rmin : 0 79 0 0 0 0 0 0
%
% --------------------------------------------------------------------------------------------------
%
% VELOCITY-DENSITY STRUCTURE
% No. of layers = 5
%
% DEPTH P-VEL S-VEL DENS QP QS
% [km] [km/s] [km/s] [g/cm^3]
% 0.00 5.60 3.20 2.50 400 200
% 3.00 6.00 3.47 2.70 600 300
% 16.00 6.60 3.82 3.00 800 400
% 30.00 7.80 4.50 3.20 1000 500
% 70.00 8.00 4.62 3.25 1000 500
%
% --------------------------------------------------------------------------------------------------
% 23-Jul-2007 PMM (mai@sed.ethz.ch)
% --------------------------------------------------------------------------------------------------
%
% SOURCE MODEL PARAMETERS
% Nsbfs = 221 subfaults
% X,Y,Z coordinates in km; SLIP in m
% if applicable: RAKE in deg, RISE in s, TRUP in s, slip in each TW in m
%
% Coordinates are given for top-center of each subfault or segment: |'|
% Origin of local coordinate system at epicenter: X (EW) = 0, Y (NS) = 0
% LAT LON X==EW Y==NS Z SLIP TRUP
% --------------------------------------------------------------------------------------------------
34.4710 131.7372 5.6046 3.3283 0.1000 0.0000 3.0730
34.4658 131.7282 4.7854 2.7547 0.1000 0.0000 2.8670
34.4606 131.7193 3.9663 2.1811 0.1000 0.0000 2.6870
34.4555 131.7103 3.1471 1.6075 0.1000 0.0000 2.5390
........ many rows omitted here ....

An example for multiple segment model:

% ---------------------------- FINITE-SOURCE RUPTURE MODEL --------------------------------
%
% Event : Kobe (Japan) 01/17/1995 [Sekiguchi etal (2000)]
% EventTAG: s1995KOBEJ1seki
%
% Loc : LAT = 34.598 LON = 135.044 DEP = 16.37
% Size : LEN = 63.55 km WID = 20.50 km Mw = 6.99 Mo = 3.44e+019 Nm
% Mech : STRK = 45 DIP = 85 RAKE = 180 Htop = 1.00 km
% Rupt : avTr = 3.3 s avVr = 3.1 km/s
%
% ---------------------------- inversion-related parameters --------------------------------
%
% Invs : Nx = 31 Nz = 10 Fmin = 0.10 Hz Fmax = 1.0 Hz
% Invs : Dx = 2.05 km Dz = 2.05 km
% Invs : Ntw = 6 Nsg = 5 (# of time-windows,# of fault segments)
% Invs : LEN = 0.80 s SHF = 0.30 s (time-window length and time-shift)
% SVF : tanhyp (type of slip-velocity function used)
%
% Data : SGM TELE GPS tril level
% NoS : 25 0 0 0 0
% PHImx: 110 0 0 0 0
% Rmin : 0.2 0.0 0.0 0.0 0.0
%
% -----------------------------------------------------------------------------------------
%
% VELOCITY-DENSITY STRUCTURE
% No. of layers = 4
%
% DEPTH P-VEL S-VEL DENS QP QS
% [km] [km/s] [km/s] [g/cm^3]
% 0.00 5.50 3.20 2.60 9999 9999
% 5.10 6.00 3.46 2.70 9999 9999
% 18.00 6.70 3.87 2.80 9999 9999
% 34.50 7.50 4.33 3.00 9999 9999
%
% -----------------------------------------------------------------------------------------
% 18-Jul-2007, created by P.Martin Mai (mai@sed.ethz.ch)
% -----------------------------------------------------------------------------------------
%
% SOURCE MODEL PARAMETERS
% X,Y,Z coordinates in km; SLIP in m
% if applicable: RAKE in deg, RISE in s, TRUP in s, slip in each TW in m
%
% Coordinates are given for top-center of each subfault or segment: |'|
% Origin of local coordinate system at epicenter: X (NS) = 0, Y (EW) = 0
% ------------------------------------------------------------------------------------------
% --------------------------- MULTISEGMENT MODEL -------------------------------------------
% ------------------------------------------------------------------------------------------
% SEGMENT # 1: STRIKE = 45 deg DIP = 78.0 deg
% LEN = 20.50 km WID = 20.50 km
% depth to top: Z2top = 1.00 km
% coordinates of top-center:
% LAT = 34.5530, LON = 134.9402
% hypocenter on SEG # 1 : along-strike (X) = 20.50, down-dip (Z) = 15.37
% Nsbfs = 100 subfaults
% -------------------------------------------------------------------------------------------
% LAT LON X==EW Y==NS Z SLIP RAKE TW1 rkTW1 TW2 rkTW2 ...
% -------------------------------------------------------------------------------------------
34.4943 134.8689 -11.5234 -16.0192 1.0000 0.224 166.504 0.057 108.435 0.000 90.000 ...
34.5073 134.8847 -10.0738 -14.5696 1.0000 0.876 221.820 0.205 222.797 0.148 250.201 ...
34.5204 134.9006 -8.6242 -13.1200 1.0000 0.647 241.314 0.005 90.000 0.128 220.101 ...

........ many rows omitted here ....