Frequency plot and analysis

1

Dear all,
I want to produce a frequency plot and analysis the frequency content of my seismogram as below but I am not idea how to do that.

spectro
spectro1920×919 168 KB

2

Look here: obspy.imaging - Plotting routines for ObsPy — ObsPy 1.4.1.post0+393.g271569d37b.obspy.master documentation

Or you could do it via PPSD and it’s plot spectrogram routine (bit of a different approach): obspy.signal.spectral_estimation.PPSD.plot_spectrogram — ObsPy 1.4.1.post0+393.g271569d37b.obspy.master documentation

Example plots with links to code in gallery for both: