Hazard realisations

Produce Hazard realisations

flowchart LR
    classDef nshm stroke:lightgreen, stroke-width:3px
    classDef AWS stroke:orange, stroke-width:3px

    RHR[/run hazard realizations/]:::nshm
    runzi:::nshm
    oq[openquake]
    HR[(hazard realizations)]:::AWS

    RHR --> |with| runzi -->|using| oq -->|produces| HR 

NSHM Seismicity Rate Model Logic Tree (SRM LT) has 49 parts (ref NSHM)

For each component branch of the source rate model logic tree:

Run a job with

inputs:

• inversion solution and distributed seismicity rate models (multiple) for the fault systems (i.e. one part of the SRM LT).
• GMCM Logic Tree
• site specifications config
• user configs IMTS, etc
• calculation configs

outputs:

• one HDF5 file, size (TBA): NZSHM22 4k sites => 300 MB
• CSV files: 200MB
• optional export to DynamoDB => THH Hazard Realizations table
• optional export to cache table => THH Hazard Realizations CACHE

resource/cost/metrics:

• 49 * 300MB of realisations for NSHM model => 15GB
• Currently ~24 hours for 4k sites, all NSHM periods. For the largest component branch of the SRM LT (typically crustal sources). AWS M5 instance 8 CPU.