def test_area_with_tgr_mfd(self):
trunc_mfd = mfd.TruncatedGRMFD(
a_val=2.1, b_val=4.2, bin_width=0.1, min_mag=6.55, max_mag=8.91
)
np1 = geo.NodalPlane(strike=0.0, dip=90.0, rake=0.0)
np2 = geo.NodalPlane(strike=90.0, dip=45.0, rake=90.0)
npd = pmf.PMF(
[(decimal.Decimal("0.3"), np1), (decimal.Decimal("0.7"), np2)]
)
hd = pmf.PMF(
[(decimal.Decimal("0.5"), 4.0), (decimal.Decimal("0.5"), 8.0)]
)
polygon = geo.Polygon(
[geo.Point(-122.5, 37.5), geo.Point(-121.5, 37.5),
geo.Point(-121.5, 38.5), geo.Point(-122.5, 38.5)]
)
area = source.AreaSource(
source_id="1",
name="source A",
tectonic_region_type="Active Shallow Crust",
mfd=trunc_mfd,
rupture_mesh_spacing=self.rupture_mesh_spacing,
magnitude_scaling_relationship=scalerel.PeerMSR(),
rupture_aspect_ratio=1.0,
upper_seismogenic_depth=0.0,
lower_seismogenic_depth=10.0,
nodal_plane_distribution=npd,
hypocenter_distribution=hd,
polygon=polygon,
area_discretization=self.area_source_discretization,
temporal_occurrence_model=PoissonTOM(50.),
)
actual = list(source_input.area_to_point_sources(area, 10))
self.assertEqual(len(actual), 96) # expected 96 points
self.assertAlmostEqual(actual[0].mfd.a_val, 0.1177287669604317)
def test_area_with_incr_mfd(self):
incr_mfd = mfd.EvenlyDiscretizedMFD(
min_mag=6.55, bin_width=0.1,
occurrence_rates=[
0.0010614989, 8.8291627E-4, 7.3437777E-4, 6.108288E-4,
5.080653E-4,
]
)
np1 = geo.NodalPlane(strike=0.0, dip=90.0, rake=0.0)
np2 = geo.NodalPlane(strike=90.0, dip=45.0, rake=90.0)
npd = pmf.PMF(
[(decimal.Decimal("0.3"), np1), (decimal.Decimal("0.7"), np2)]
)
hd = pmf.PMF(
[(decimal.Decimal("0.5"), 4.0), (decimal.Decimal("0.5"), 8.0)]
)
polygon = geo.Polygon(
[geo.Point(-122.5, 37.5), geo.Point(-121.5, 37.5),
geo.Point(-121.5, 38.5), geo.Point(-122.5, 38.5)]
)
area = source.AreaSource(
source_id="1",
name="source A",
tectonic_region_type="Active Shallow Crust",
mfd=incr_mfd,
rupture_mesh_spacing=self.rupture_mesh_spacing,
magnitude_scaling_relationship=scalerel.PeerMSR(),
rupture_aspect_ratio=1.0,
upper_seismogenic_depth=0.0,
lower_seismogenic_depth=10.0,
nodal_plane_distribution=npd,
hypocenter_distribution=hd,
polygon=polygon,
area_discretization=self.area_source_discretization,
temporal_occurrence_model=PoissonTOM(50.0),
)
actual = list(source_input.area_to_point_sources(area, 10))
self.assertEqual(len(actual), 96) # expected 96 points
assert_allclose(
actual[0].mfd.occurrence_rates,
[1.10572802083e-05, 9.197044479166666e-06, 7.6497684375e-06,
6.3627999999999995e-06, 5.292346875e-06])
