This is a python-based code to be run under PyNomo software to construct a type 1/type 8 combined nomogram for earthquake seismic magnitude determination, knowing that the Richter magnitude has the following expression: \(M_{L}-\log_{10}\left({A_{\max }}\right)+0.000008\times D^{2}-0.01\times D-1.8783=0\) which represents a mathematical function of the form (type 1 nomogram): \(f_{1}\left({M_{L}}\right)+f_{2}\left({A_{\max }}\right)+f_{3}\left({D}\right)=0\)