KeyError: 'SA' in Hazard Consistent Downsampling (ComputeIntensityMeasure.py line 532)

[pby22555]

Hello, I am encountering a reproducible error when running Hazard Consistent Downsampling in R2D.
The simulation stops during IM computation with the following message:

HazardSimulation: stations loaded.
HazardSimulation: loading scenarios.
HazardSimulation: scenarios loaded.
HazardSimulation: computing intensity measures.
Traceback (most recent call last):
File ".../HazardSimulationEQ.py", line 385, in
hazard_job(hazard_info)
File ".../HazardSimulationEQ.py", line 105, in hazard_job
im_raw, im_info = compute_im(scenarios, stations, scenario_info,
File ".../ComputeIntensityMeasure.py", line 532, in compute_im
if ho_period in im_info['SA'].get('Periods'):
KeyError: 'SA'

[jinyan1214]

Hello,

Thank you for using R2D and reporting the issue!

We have fixed this issue. The change will be reflected when the next R2D version is released.

At the same time, if you would like to try using this algorithm, you could try:

1. Select "Inferred" as the Hazard Curve Input. Instead of getting the "true" hazard curve from the USGS NSHM, the "Inferred" option will use the forecasted earthquake scenarios to calculate the "true" hazard curve and downsample the forecast into 40 scenarios.
2. In the Ground Motion Models page, select SA 0.1s and at least one more ground motion intensity measure. SA0.1s is needed because in your screenshot, you selected SA0.1s as the downsampling anchoring variable. At least another ground motion intensity measure is only needed because of a bad interface design. We have modified this, and in the future release, only SA0.1s is needed in "Ground Motion Models".

[pby22555]

您好，您的邮件我已收到，我会及时查收。谢谢！