carlos
invrad has not been used much and it requires neqar data of good quality.
we recommned to use amplitude ratios instead and focmec.
for your questions
all P'smust be read as Pg and with polarity, same with S so IP woul dnot
work, see manual.
amplitude readings are made peak to peak, ideally for thsi to work, the
first swing should be the biggest.
jens
On Mon, 20 Aug 2018, Carlos Roberto Pinto Oróstica wrote:
Dear all,
I'm kindly seeking help with moment tensor inversion program (INVRAD). I'm
struggling to use this program (INVRAD) when im using it i get the message
which says " 0 data for inversion, not enough". I'm not sure of what might be
the problem, i have picked 10 clear P- phases (IP) and their amplitudes (AMPG)
and 10 clear S- phases.
My other cuestion is how of to peak on the amplitud of S and P wave, How pick
that? the
P-phase from the beginin to the first pick (1/4 ?)and the s-wave, is peak to
peak (1/2 ?)o cero to
peak (1/4 ?). Thank.
--
Carlos Pinto Oróstica
Ingeniero en Construcción
F: 955180830
Temuco-Chile.
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