groundmotion-processing
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Extremely large PGA values for processed ground motions
Describe the bug Extremely large PGA values (e.g., 10^10 g) are observed from some ground motions.
To Reproduce I got more than 600 ground motions with PGArotD50 larger than 10g from network AM, YG, YH and ZY. Examples are provided below.
- network ZY, event ID ci14745580, station ID ZY.OCBC.HH; to reproduce, the configuration file is here.
- network YH, event ID nc21438324, station ID YH.LEEP.EH; to reproduce, the configuration file is here.
- network YG, event ID, nc21266207 station ID YG.MCL.HH; to reproduce, the configuration file is here.
- network AM, event ID, ci38457511 station ID AM.R286C.EH; to reproduce, the configuration file is here.
Environmnet:
- OS: macOS Catalina v10.15.7
- Python Version 3.8.10
- Libcomcat Version 2.0.13
- Numpy Version 1.21.2
Thank you for reporting this issue, which is very concerning. Since the problem seems to be confined to a few (somewhat obscure) networks, as a short term measure, I'm going to add these networks to the "exclude_networks" list since it may take some time to find a proper solution.