Several technical questions
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Hadi
Feb 26, 2013, 2:25:57 AM2/26/13
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Dear all
Hi
As you know one of the fundamental hypothesis in probabilistic seismic hazard assessment is Poissonian (Time-independent) process of events now my questions are:
1- Where or in which part of the calculations or formulations this assumption shows its effect? Just in removing dependent events and calculating probability of exceedance? I mean in which parts of calculation this assumption shows its impacts, mathematically?
2-If we want change this assumption (Poissonian|, time-dependent) which parts of calculation or formulations should be modified?
3- In classic PSHA if we change the PDF of magnitude occurrences, how we can calculate seismicity parameters (b-value and occurrence rate) by Truncated Gutenberg-Riechter yet? I didn't understand the relations between the f(m) and G-R in PSHA formula. I should mentioned that read some taxes about this subjects and have not get the point yet.
your clear and simple answers will really helpful.
Cheers
Hadi
Hi
As you know one of the fundamental hypothesis in probabilistic seismic hazard assessment is Poissonian (Time-independent) process of events now my questions are:
1- Where or in which part of the calculations or formulations this assumption shows its effect? Just in removing dependent events and calculating probability of exceedance? I mean in which parts of calculation this assumption shows its impacts, mathematically?
2-If we want change this assumption (Poissonian|, time-dependent) which parts of calculation or formulations should be modified?
3- In classic PSHA if we change the PDF of magnitude occurrences, how we can calculate seismicity parameters (b-value and occurrence rate) by Truncated Gutenberg-Riechter yet? I didn't understand the relations between the f(m) and G-R in PSHA formula. I should mentioned that read some taxes about this subjects and have not get the point yet.
your clear and simple answers will really helpful.
Cheers
Hadi
monelli.damiano
Feb 26, 2013, 4:02:53 AM2/26/13
to openqu...@googlegroups.com
Dear Hadi,
this is the OpenQuake developer mailing list, and it's meant to discuss topics about the OpenQuake software, not general questions about PSHA. If you want to discuss features/capabilities of OpenQuake you can post your questions in the user mailing list (openqua...@googlegroups.com<mailto:openqua...@googlegroups.com>).
Your questions are related to the general theory of PSHA and you can probably find answers in PSHA textbooks and in the scientific literature. If you are interested in how OpenQuake computes PSHA please take a look at the online documentation: http://beta.globalquakemodel.org/openquake/support/documentation/
Best,
Damiano
this is the OpenQuake developer mailing list, and it's meant to discuss topics about the OpenQuake software, not general questions about PSHA. If you want to discuss features/capabilities of OpenQuake you can post your questions in the user mailing list (openqua...@googlegroups.com<mailto:openqua...@googlegroups.com>).
Your questions are related to the general theory of PSHA and you can probably find answers in PSHA textbooks and in the scientific literature. If you are interested in how OpenQuake computes PSHA please take a look at the online documentation: http://beta.globalquakemodel.org/openquake/support/documentation/
Best,
Damiano
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Hadi
Feb 26, 2013, 8:10:35 AM2/26/13
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Dear Dr Monelli
Hi
Thank a lot because of your fast and clear answer.
Hi
Thank a lot because of your fast and clear answer.
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