after the long propagation path cannot be completely regained
by the instrument removal. Other stations with Lennartz 1 Hz + RD3 instruments are asm, gyg,
hei, kri, sau skh and sol. They are all within
130 km epicentral distance so the low frequencies
are not entirely lost in the instrument. Data from station hla are omitted from the data set.
20
Another station with diminished seismic amplitudes
/media/vedurstofan/utgafa/skyrslur/2009/VI_2009_012.pdf