Weighting input variables by seismic source

[jiha...@gmail.com]

Hello,

I am a PhD student currently working on generating hazard maps using OpenQuake.
In defining the seismic sources, I would like to assign different weights to the a and b values, as well as to the minimum and maximum magnitudes, as shown below(source_model.xml):

<truncGutenbergRichterMFD aValue="5.5000000E+00" bValue="0.5000000E+00" probability="0.5000000E+00"/>
<truncGutenbergRichterMFD aValue="4.5000000E+00" bValue="0.5000000E+00" probability="0.5000000E+00"/>
<truncGutenbergRichterMFD maxMag="7.0000000E+00" minMag="5.0000000E+00" probability="0.5000000E+00"/>
<truncGutenbergRichterMFD maxMag="8.0000000E+00" minMag="5.0000000E+00" probability="0.5000000E+00"/>

  However, when I attempt this, I encounter the following error:

ValueError: node areaSource: too many values to unpack (expected 1), line 13 of C:\Users\Public\Documents\ESTsoft\CreatorTemp\tmpp9mmbgqx\calc_1507\source_model1.xml

Is there a way to assign weights to each of these variables separately?

Thank you very much for your help.

  

[Marco Pagani]

The epistemic uncertainties must be specified in the two .xml files. Please read the OQ documentation carefully (https://docs.openquake.org/oq-engine/manual/latest)

The uncertainties in your example can be modelled as described here:
https://github.com/gem/oq-engine/blob/master/openquake/qa_tests_data/logictree/case_36/source_model_logic_tree.xml

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[jiha...@gmail.com]

Thank you so much, Marco, for your clear and helpful answer to my OpenQuake question.

Your support made it much easier for me to move forward—thanks again!

2025년 9월 19일 금요일 오전 12시 56분 18초 UTC+9에 marco....@globalquakemodel.org님이 작성: