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Classify GCMT tectonic type with Haynie et al. (2026) #238

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Classify GCMT tectonic type with Haynie et al. (2026) #238

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6 changes: 4 additions & 2 deletions tests/test_gcmt_to_realisation.py
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,9 @@
@pytest.mark.parametrize(
"event_id, tect_type",
[
("2103645", "subduction_interface"), # 2003 Fiordland
# 2003 Fiordland: ~9 km below the Slab2 interface with slip very oblique
# to the Puysegur plate motion, so Haynie et al. (2026) favours slab.
("2103645", "subduction_slab"),
("2016p858000", "active_shallow"), # 2016 Kaikoura
("2017p795065", "subduction_slab"),
],
Expand Down Expand Up @@ -67,7 +69,7 @@ def test_gcmt_to_realisation_most_likely_nodal_plane(tmp_path: Path) -> None:
solution_origin=solutions_ffp,
)

# The 2003 Fiordland earthquake ruptured the shallow-dipping interface.
# The shallow-dipping plane agrees with the subducting Puysegur slab.
fault = SourceConfig.read_from_realisation(realisation_ffp).source_geometries[
"2103645"
]
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5 changes: 3 additions & 2 deletions workflow/scripts/gcmt_to_realisation.py
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Expand Up @@ -164,8 +164,9 @@ def gcmt_to_realisation(
Defaults to `MOST_LIKELY`.
tectonic_type : focal_mechanism.TectonicType | None
The tectonic type used to select the empirical ground motion models.
If not provided, it is classified from the solution with the NZ NSHM
2022 rule (see `source_modelling.focal_mechanism`).
If not provided, it is classified from the solution with the
Haynie et al. (2026) interface/intraslab classification (see
`source_modelling.focal_mechanism`).
solution_origin : Path | None
If provided, use a supplied CSV of CMT solutions to lookup geometry.
Must follow the format of the Geonet CMT solutions file.
Expand Down
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