def test_within_rupture_distance(self):
"""
Tests the function to select within Joyner-Boore distance
"""
self.catalogue.data["longitude"] = np.arange(4.0, 7.5, 0.5)
self.catalogue.data["latitude"] = np.arange(4.0, 7.5, 0.5)
self.catalogue.data["depth"] = np.ones(7, dtype=float)
selector0 = CatalogueSelector(self.catalogue)
# Construct Fault
trace0 = np.array([[5.5, 6.0], [5.5, 5.0]])
fault_trace = Line([Point(trace0[i, 0], trace0[i, 1]) for i in range(0, 2)])
# Simple fault with vertical dip
fault0 = SimpleFaultSurface.from_fault_data(fault_trace, 0.0, 20.0, 90.0, 1.0)
# Within 100 km
test_cat_100 = selector0.within_rupture_distance(fault0, 100.0)
np.testing.assert_array_almost_equal(test_cat_100.data["longitude"], np.array([5.0, 5.5, 6.0]))
np.testing.assert_array_almost_equal(test_cat_100.data["latitude"], np.array([5.0, 5.5, 6.0]))
np.testing.assert_array_almost_equal(test_cat_100.data["depth"], np.array([1.0, 1.0, 1.0]))
# Simple fault with 30 degree dip
fault0 = SimpleFaultSurface.from_fault_data(fault_trace, 0.0, 20.0, 30.0, 1.0)
# Within 100 km
test_cat_100 = selector0.within_rupture_distance(fault0, 100.0)
np.testing.assert_array_almost_equal(test_cat_100.data["longitude"], np.array([4.5, 5.0, 5.5, 6.0]))
np.testing.assert_array_almost_equal(test_cat_100.data["latitude"], np.array([4.5, 5.0, 5.5, 6.0]))
np.testing.assert_array_almost_equal(test_cat_100.data["depth"], np.array([1.0, 1.0, 1.0, 1.0]))
def count_ruptures(self):
"""
See :meth:
`openquake.hazardlib.source.base.BaseSeismicSource.count_ruptures`.
"""
whole_fault_surface = SimpleFaultSurface.from_fault_data(
self.fault_trace, self.upper_seismogenic_depth,
self.lower_seismogenic_depth, self.dip, self.rupture_mesh_spacing)
whole_fault_mesh = whole_fault_surface.mesh
mesh_rows, mesh_cols = whole_fault_mesh.shape
fault_length = float((mesh_cols - 1) * self.rupture_mesh_spacing)
fault_width = float((mesh_rows - 1) * self.rupture_mesh_spacing)
self._nr = []
n_hypo = len(self.hypo_list) or 1
n_slip = len(self.slip_list) or 1
for (mag, mag_occ_rate) in self.get_annual_occurrence_rates():
if mag_occ_rate == 0:
continue
rup_cols, rup_rows = self._get_rupture_dimensions(
fault_length, fault_width, mag)
num_rup_along_length = mesh_cols - rup_cols + 1
num_rup_along_width = mesh_rows - rup_rows + 1
self._nr.append(num_rup_along_length * num_rup_along_width *
n_hypo * n_slip)
counts = sum(self._nr)
return counts
def make_rupture_fordpp(self, rupture_class, **kwargs):
# Create the rupture surface.
upper_seismogenic_depth = 0.
lower_seismogenic_depth = 15.
dip = 90.
mesh_spacing = 1.
fault_trace_start = Point(10., 45.2)
fault_trace_end = Point(10., 45.919457)
fault_trace = Line([fault_trace_start, fault_trace_end])
default_arguments = {
'mag': 7.2,
'rake': 0.,
'tectonic_region_type': const.TRT.STABLE_CONTINENTAL,
'hypocenter': Point(10.0, 45.334898, 10),
'surface': SimpleFaultSurface.from_fault_data(
fault_trace, upper_seismogenic_depth, lower_seismogenic_depth,
dip=dip, mesh_spacing=mesh_spacing),
'source_typology': object(),
'rupture_slip_direction': 0.
}
default_arguments.update(kwargs)
kwargs = default_arguments
rupture = rupture_class(**kwargs)
for key in kwargs:
assert getattr(rupture, key) is kwargs[key]
return rupture
def iter_ruptures(self):
"""
See :meth:
`openquake.hazardlib.source.base.BaseSeismicSource.iter_ruptures`.
Generates a ruptures using the "floating" algorithm: for all the
magnitude values of assigned MFD calculates the rupture size with
respect to MSR and aspect ratio and then places ruptures of that
size on the surface of the whole fault source. The occurrence
rate of each of those ruptures is the magnitude occurrence rate
divided by the number of ruptures that can be placed in a fault.
"""
whole_fault_surface = SimpleFaultSurface.from_fault_data(
self.fault_trace, self.upper_seismogenic_depth,
self.lower_seismogenic_depth, self.dip, self.rupture_mesh_spacing)
whole_fault_mesh = whole_fault_surface.mesh
mesh_rows, mesh_cols = whole_fault_mesh.shape
fault_length = float((mesh_cols - 1) * self.rupture_mesh_spacing)
fault_width = float((mesh_rows - 1) * self.rupture_mesh_spacing)
for mag, mag_occ_rate in self.get_annual_occurrence_rates():
rup_cols, rup_rows = self._get_rupture_dimensions(
fault_length, fault_width, mag)
num_rup_along_length = mesh_cols - rup_cols + 1
num_rup_along_width = mesh_rows - rup_rows + 1
num_rup = num_rup_along_length * num_rup_along_width
occurrence_rate = mag_occ_rate / float(num_rup)
for first_row in range(num_rup_along_width):
for first_col in range(num_rup_along_length):
mesh = whole_fault_mesh[first_row: first_row + rup_rows,
first_col: first_col + rup_cols]
if not len(self.hypo_list) and not len(self.slip_list):
hypocenter = mesh.get_middle_point()
occurrence_rate_hypo = occurrence_rate
surface = SimpleFaultSurface(mesh)
yield ParametricProbabilisticRupture(
mag, self.rake, self.tectonic_region_type,
hypocenter, surface, occurrence_rate_hypo,
self.temporal_occurrence_model)
else:
for hypo in self.hypo_list:
for slip in self.slip_list:
surface = SimpleFaultSurface(mesh)
hypocenter = surface.get_hypo_location(
self.rupture_mesh_spacing, hypo[:2])
occurrence_rate_hypo = occurrence_rate * \
hypo[2] * slip[1]
rupture_slip_direction = slip[0]
yield ParametricProbabilisticRupture(
mag, self.rake, self.tectonic_region_type,
hypocenter, surface, occurrence_rate_hypo,
self.temporal_occurrence_model,
rupture_slip_direction)
def test_get_strike_1(self):
p1 = Point(0.0, 0.0)
p2 = Point(0.0635916966572, 0.0635916574897)
surface = SimpleFaultSurface.from_fault_data(Line([p1, p2]), 1.0, 6.0,
89.9, 1.0)
self.assertAlmostEquals(45.0, surface.get_strike(), delta=1e-4)
def test_get_dip_2(self):
p1 = Point(0.0, 0.0)
p2 = Point(0.0635916966572, 0.0635916574897)
surface = SimpleFaultSurface.from_fault_data(Line([p1, p2]), 1.0, 6.0,
30.0, 1.0)
self.assertAlmostEquals(30.0, surface.get_dip(), 1)
def test_inclined_non_planar_surface(self):
p1 = Point(0.1, 0.1, 0.0)
p2 = Point(0.1, 0.117986432118, 0.0)
p3 = Point(0.117986470254, 0.117986426305, 0.0)
p4 = Point(0.117986470254, 0.0999999941864, 0.0)
surface = SimpleFaultSurface.from_fault_data(Line([p1, p2, p3, p4]),
2.0, 4.0, 30.0, 1.0)
self.assertAlmostEqual(surface.get_width(), 4.0, places=2)
def test_get_mesh_5(self):
p1 = Point(179.9, 0.0)
p2 = Point(180.0, 0.0)
p3 = Point(-179.9, 0.0)
fault = SimpleFaultSurface.from_fault_data(Line([p1, p2, p3]), 1.0,
6.0, 90.0, 1.0)
self.assert_mesh_is(fault, test_data.TEST_5_MESH)
def test_get_dip_1(self):
p1 = Point(0.0, 0.0)
p2 = Point(0.0635916966572, 0.0635916574897)
p3 = Point(0.0860747816618, 0.102533437776)
surface = SimpleFaultSurface.from_fault_data(Line([p1, p2, p3]), 1.0,
6.0, 90.0, 1.0)
self.assertAlmostEquals(90.0, surface.get_dip(), delta=1e-6)
def test_get_mesh_topo(self):
p1 = Point(0.0, 0.0, -2.0)
p2 = Point(0.0, 0.0359728811759, -2.0)
p3 = Point(0.0190775080917, 0.0550503815182, -2.0)
p4 = Point(0.03974514139, 0.0723925718856, -2.0)
fault = SimpleFaultSurface.from_fault_data(Line([p1, p2, p3, p4]),
-2.0, 2.0, 90.0, 1.0)
self.assert_mesh_is(fault, test_data.TEST_TOPO_MESH)
def test_get_mesh_1(self):
p1 = Point(0.0, 0.0, 0.0)
p2 = Point(0.0, 0.0359728811759, 0.0)
p3 = Point(0.0190775080917, 0.0550503815182, 0.0)
p4 = Point(0.03974514139, 0.0723925718856, 0.0)
fault = SimpleFaultSurface.from_fault_data(
Line([p1, p2, p3, p4]), 0.0, 4.2426406871192848, 45.0, 1.0)
self.assert_mesh_is(fault, test_data.TEST_1_MESH)
def _make_source(self, *args, **kwargs):
source = super(ComplexFaultSourceSimpleGeometryIterRupturesTestCase,
self)._make_source(*args, **kwargs)
surface = SimpleFaultSurface.from_fault_data(
source.fault_trace, source.upper_seismogenic_depth,
source.lower_seismogenic_depth, source.dip,
source.rupture_mesh_spacing
)
mesh = surface.get_mesh()
top_edge = Line(list(mesh[0:1]))
bottom_edge = Line(list(mesh[-1:]))
return ComplexFaultSource(
source.source_id, source.name, source.tectonic_region_type,
source.mfd, source.rupture_mesh_spacing,
source.magnitude_scaling_relationship, source.rupture_aspect_ratio,
[top_edge, bottom_edge], source.rake
)
def create_geometry(self, input_geometry, dip, upper_depth, lower_depth,
mesh_spacing=1.0):
'''
If geometry is defined as a numpy array then create instance of
nhlib.geo.line.Line class, otherwise if already instance of class
accept class
:param input_geometry:
Trace (line) of the fault source as either
i) instance of nhlib.geo.line.Line class
ii) numpy.ndarray [Longitude, Latitude]
:param float dip:
Dip of fault surface (in degrees)
:param float upper_depth:
Upper seismogenic depth (km)
:param float lower_depth:
Lower seismogenic depth (km)
:param float mesh_spacing:
Spacing of the fault mesh (km) {default = 1.0}
'''
assert((dip > 0.) and (dip <= 90.))
self.dip = dip
self._check_seismogenic_depths(upper_depth, lower_depth)
if not isinstance(input_geometry, Line):
if not isinstance(input_geometry, np.ndarray):
raise ValueError('Unrecognised or unsupported geometry '
'definition')
else:
self.fault_trace = Line([Point(row[0], row[1]) for row in
input_geometry])
else:
self.fault_trace = input_geometry
# Build fault surface
self.geometry = SimpleFaultSurface.from_fault_data(self.fault_trace,
self.upper_depth,
self.lower_depth,
self.dip,
mesh_spacing)
def test_hypocentre_index_multi_segments(self):
hypocentre = Point(0.588100, 0.479057, 7.1711)
upper_seismogenic_depth = 0.5
lower_seismogenic_depth = 15.
dip = 56.5
mesh_spacing = 2.
fault_trace = Line([Point(0., 0.), Point(0.55, 0.5), Point(1.2, 1.2)])
whole_fault_surface = SimpleFaultSurface.from_fault_data(
fault_trace, upper_seismogenic_depth,
lower_seismogenic_depth, dip, mesh_spacing
)
target_rupture_surface = whole_fault_surface.get_resampled_top_edge()
index = SimpleFaultSurface.hypocentre_patch_index(
hypocentre, target_rupture_surface, upper_seismogenic_depth,
lower_seismogenic_depth, dip)
# The value used for this test is by hand calculation
self.assertEqual(index, 2)
def _make_source(self, *args, **kwargs):
source = super()._make_source(*args, **kwargs)
surface = SimpleFaultSurface.from_fault_data(
source.fault_trace, source.upper_seismogenic_depth,
source.lower_seismogenic_depth, source.dip,
source.rupture_mesh_spacing
)
mesh = surface.mesh
top_edge = Line(list(mesh[0:1]))
bottom_edge = Line(list(mesh[-1:]))
cfs = ComplexFaultSource(
source.source_id, source.name, source.tectonic_region_type,
source.mfd, source.rupture_mesh_spacing,
source.magnitude_scaling_relationship, source.rupture_aspect_ratio,
source.temporal_occurrence_model, [top_edge, bottom_edge],
source.rake
)
assert_pickleable(cfs)
return cfs
def test_hypocentre_index_large_mesh_spacing(self):
hypocentre = Point(10.443522, 45.379006, 20.0)
upper_seismogenic_depth = 10.
lower_seismogenic_depth = 28.
dip = 30.
mesh_spacing = 10.
fault_trace = Line([Point(10., 45.2), Point(10., 45.487783)])
whole_fault_surface = SimpleFaultSurface.from_fault_data(
fault_trace, upper_seismogenic_depth,
lower_seismogenic_depth, dip, mesh_spacing
)
target_rupture_surface = whole_fault_surface.get_resampled_top_edge()
index = SimpleFaultSurface.hypocentre_patch_index(
hypocentre, target_rupture_surface, upper_seismogenic_depth,
lower_seismogenic_depth, dip)
# The value used for this test is by hand calculation
self.assertEqual(index, 1)
def __init__(self, trace, dip, upper_depth, lower_depth, mesh_spacing=1.0):
'''
Sets up the fault geometry parameters from the input fault definitions
:param float mesh_spacing:
Spacing (km) of the fault surface mesh
'''
self.typology = 'Simple'
self.trace = trace
self.dip = dip
self.upper_depth = upper_depth
self.lower_depth = lower_depth
self.surface = SimpleFaultSurface.from_fault_data(self.trace,
self.upper_depth,
self.lower_depth,
self.dip,
mesh_spacing)
self.length = trace.get_length()
self.downdip_width = None
self.surface_width = None
self.area = None
def count_ruptures(self):
"""
See :meth:
`openquake.hazardlib.source.base.BaseSeismicSource.count_ruptures`.
"""
whole_fault_surface = SimpleFaultSurface.from_fault_data(
self.fault_trace, self.upper_seismogenic_depth,
self.lower_seismogenic_depth, self.dip, self.rupture_mesh_spacing
)
whole_fault_mesh = whole_fault_surface.get_mesh()
mesh_rows, mesh_cols = whole_fault_mesh.shape
fault_length = float((mesh_cols - 1) * self.rupture_mesh_spacing)
fault_width = float((mesh_rows - 1) * self.rupture_mesh_spacing)
counts = 0
for (mag, mag_occ_rate) in self.get_annual_occurrence_rates():
rup_cols, rup_rows = self._get_rupture_dimensions(
fault_length, fault_width, mag)
num_rup_along_length = mesh_cols - rup_cols + 1
num_rup_along_width = mesh_rows - rup_rows + 1
counts += num_rup_along_length * num_rup_along_width
return counts
def test_hypocentre_index_2ndpatch(self):
hypocentre = Point(10.237155, 45.562761, 8.0)
upper_seismogenic_depth = 0.
lower_seismogenic_depth = 15.
dip = 30.
mesh_spacing = 1.
fault_trace = Line([Point(10., 45.2), Point(10.0, 45.559729),
Point(10.365145, 45.813659)])
whole_fault_surface = SimpleFaultSurface.from_fault_data(
fault_trace, upper_seismogenic_depth,
lower_seismogenic_depth, dip, mesh_spacing
)
target_rupture_surface = whole_fault_surface.get_resampled_top_edge()
index = SimpleFaultSurface.hypocentre_patch_index(
hypocentre, target_rupture_surface, upper_seismogenic_depth,
lower_seismogenic_depth, dip)
# The value used for this test is by hand calculation
self.assertEqual(index, 2)
def test_get_resampled_top_edge_non_planar(self):
upper_seismogenic_depth = 0.
lower_seismogenic_depth = 40.
dip = 90.
mesh_spacing = 10.
fault_trace = Line([Point(0.0, 0.0), Point(0.5, 0.5), Point(1.5, 1.0)])
whole_fault_surface = SimpleFaultSurface.from_fault_data(
fault_trace, upper_seismogenic_depth,
lower_seismogenic_depth, dip, mesh_spacing
)
ref = Line([Point(0., 0.), Point(0.5, 0.5), Point(1.5, 1.0)])
result = whole_fault_surface.get_resampled_top_edge()
for ref_point, result_point in zip(ref.points, result.points):
self.assertAlmostEqual(ref_point.longitude,
result_point.longitude, delta=0.1)
self.assertAlmostEqual(ref_point.latitude,
result_point.latitude, delta=0.1)
self.assertAlmostEqual(ref_point.depth,
result_point.depth, delta=0.1)
def test_get_dip_5(self):
p1 = Point(0.0, 0.0)
p2 = Point(0.0, 0.0899322029395)
p3 = Point(0.0899323137217, 0.0899320921571)
p4 = Point(0.0899323137217, -1.10782376538e-07)
surface = SimpleFaultSurface.from_fault_data(Line([p1, p2, p3, p4]),
0.0, 10.0, 45.0, 1.0)
# fault contains three segments. the one in the middle is inclined
# with dip of 45 degrees. other two are purely vertical (they are
# perpendicular to the middle one). the middle segment is rectangle
# and the side ones are parallelograms. area of those parallelograms
# is area of middle segment times sine of their acute angle.
mid_area = 1.0
mid_dip = pi / 4 # 45 degree
side_area = sin(mid_dip) * mid_area
side_dip = pi / 2 # 90 degree
expected_dip = degrees(atan2(
(mid_area * sin(mid_dip) + 2 * (side_area * sin(side_dip))) / 3.0,
(mid_area * cos(mid_dip) + 2 * (side_area * cos(side_dip))) / 3.0
))
self.assertAlmostEquals(surface.get_dip(), expected_dip, delta=1e-3)
Line([Point(14.975, 15.0, 20.0),
Point(15.025, 15.0, 20.0)])]
COMPLEX_FAULT = ComplexFaultSource("CFLT000", "Complex Fault Source",
"Active Shallow Crust",
EvenlyDiscretizedMFD(7.0, 0.1, [1.0]),
1.0,
PeerMSR(),
1.0,
PoissonTOM(1.0),
COMPLEX_EDGES,
0.0)
SIMPLE_FAULT_SURFACE = SimpleFaultSurface.from_fault_data(SIMPLE_TRACE,
0.0,
20.0,
90.0,
1.0)
CHARACTERISTIC_FAULT = CharacteristicFaultSource(
"CHRFLT000",
"Characteristic 000",
"Active Shallow Crust",
EvenlyDiscretizedMFD(7.0, 0.1, [1.0]),
PoissonTOM(1.0),
SIMPLE_FAULT_SURFACE,
0.0)
class RateGridTestCase(unittest.TestCase):
"""
def _parse_distance_data(self, event, site, metadata):
"""
Read in the distance related metadata and return an instance of the
:class: smtk.sm_database.RecordDistance
"""
# Compute various distance metrics
# Add calculation of Repi, Rhypo from event and station localizations
# (latitudes, longitudes, depth, elevation)?
target_site = Mesh(np.array([site.longitude]),
np.array([site.latitude]),
np.array([-site.altitude / 1000.0]))
# Warning ratio fixed to 1.5
ratio=1.5
if not event.rupture.area:
event.rupture.area = WC1994().get_median_area(event.magnitude.value,
None)
surface_modeled = rcfg.create_planar_surface(
Point(event.longitude, event.latitude, event.depth),
event.mechanism.nodal_planes.nodal_plane_1['strike'],
event.mechanism.nodal_planes.nodal_plane_1['dip'],
event.rupture.area,
ratio)
hypocenter = rcfg.get_hypocentre_on_planar_surface(
surface_modeled,
event.rupture.hypo_loc)
try:
surface_modeled._create_mesh()
except:
dip = surface_modeled.get_dip()
dip_dir = (surface_modeled.get_strike() - 90.) % 360.
ztor = surface_modeled.top_left.depth
d_x = ztor * np.tan(np.radians(90.0 - dip))
top_left_surface = surface_modeled.top_left.point_at(d_x,
-ztor,
dip_dir)
top_left_surface.depth = 0.
top_right_surface = surface_modeled.top_right.point_at(d_x,
-ztor,
dip_dir)
top_right_surface.depth = 0.
surface_modeled = SimpleFaultSurface.from_fault_data(
Line([top_left_surface, top_right_surface]),
surface_modeled.top_left.depth,
surface_modeled.bottom_left.depth,
surface_modeled.get_dip(),
1.0)
# Rhypo
Rhypo, Repi, Rrup, Rjb, Ry0 = tuple(map(
get_positive_float, [metadata[key] for key in [
"Hypocentral Distance (km)", "Epicentral Distance (km)",
"Rupture Distance (km)", "Joyner-Boore Distance (km)",
"Ry0 (km)"]]))
Rx = get_float(metadata["Rx (km)"]) # Rx can be negative
#Rhypo = get_float(metadata["Hypocentral Distance (km)"])
if Rhypo is None or Rhypo < 0.0:
Rhypo = hypocenter.distance_to_mesh(target_site)
# Repi
#Repi = get_float(metadata["Epicentral Distance (km)"])
if Repi is None or Repi < 0.0:
Repi= hypocenter.distance_to_mesh(target_site, with_depths=False)
# Rrup
#Rrup = get_float(metadata["Rupture Distance (km)"])
if Rrup is None or Rrup < 0.0:
Rrup = surface_modeled.get_min_distance(target_site)[0]
# Rjb
#Rjb = get_float(metadata["Joyner-Boore Distance (km)"])
if Rjb is None or Rjb < 0.0:
Rjb = surface_modeled.get_joyner_boore_distance(
target_site)[0]
# Need to check if Rx and Ry0 are consistant with the other metrics
# when those are coming from the flatfile?
# Rx
#Rx = get_float(metadata["Rx (km)"])
if Rx is None or Rx < 0.0:
Rx = surface_modeled.get_rx_distance(target_site)[0]
# Ry0
Ry0 = get_float(metadata["Ry0 (km)"])
if Ry0 is None or Ry0 < 0.0:
Ry0 = surface_modeled.get_ry0_distance(target_site)[0]
distance = RecordDistance(
repi = Repi,
rhypo = Rhypo,
rjb = Rjb,
rrup = Rrup,
r_x = Rx,
ry0 = Ry0)
distance.azimuth = get_float(metadata["Source to Site Azimuth (deg)"])
#distance.hanging_wall = get_float(metadata["FW/HW Indicator"])
if metadata["FW/HW Indicator"] == "HW":
distance.hanging_wall = True
elif metadata["FW/HW Indicator"] == "FW":
distance.hanging_wall = False
else:
pass
return distance
return
def test_get_strike_along_meridian(self):
line = Line([Point(0, 0), Point(1e-5, 1e-3), Point(0, 2e-3)])
surface = SimpleFaultSurface.from_fault_data(line, 1.0, 6.0, 89.9, 0.1)
self.assertAlmostEquals(0, surface.get_strike(), delta=6e-2)
def test_vertical_planar_surface(self):
p1 = Point(0.1, 0.1, 0.0)
p2 = Point(0.1, 0.126979648178, 0.0)
surface = SimpleFaultSurface.from_fault_data(Line([p1, p2]), 2.0, 4.0,
90.0, 1.0)
self.assertAlmostEqual(surface.get_width(), 2.0)
def test_vertical_planar_surface(self):
p1 = Point(0.1, 0.1, 0.0)
p2 = Point(0.1, 0.126979648178, 0.0)
surface = SimpleFaultSurface.from_fault_data(Line([p1, p2]),
2.0, 4.0, 90.0, 1.0)
self.assertAlmostEqual(surface.get_width(), 2.0)
def _parse_distance_data(self, event, site, metadata):
"""
Read in the distance related metadata and return an instance of the
:class: smtk.sm_database.RecordDistance
"""
# Compute various distance metrics
# Add calculation of Repi, Rhypo from event and station localizations
# (latitudes, longitudes, depth, elevation)?
target_site = Mesh(np.array([site.longitude]),
np.array([site.latitude]),
np.array([-site.altitude / 1000.0]))
# Warning ratio fixed to 1.5
ratio = 1.5
surface_modeled = rcfg.create_planar_surface(
Point(event.longitude, event.latitude, event.depth),
event.mechanism.nodal_planes.nodal_plane_1['strike'],
event.mechanism.nodal_planes.nodal_plane_1['dip'],
event.rupture.area, ratio)
hypocenter = rcfg.get_hypocentre_on_planar_surface(
surface_modeled, event.rupture.hypo_loc)
try:
surface_modeled._create_mesh()
except:
dip = surface_modeled.get_dip()
dip_dir = (surface_modeled.get_strike() - 90.) % 360.
ztor = surface_modeled.top_left.depth
d_x = ztor * np.tan(np.radians(90.0 - dip))
top_left_surface = surface_modeled.top_left.point_at(
d_x, -ztor, dip_dir)
top_left_surface.depth = 0.
top_right_surface = surface_modeled.top_right.point_at(
d_x, -ztor, dip_dir)
top_right_surface.depth = 0.
surface_modeled = SimpleFaultSurface.from_fault_data(
Line([top_left_surface,
top_right_surface]), surface_modeled.top_left.depth,
surface_modeled.bottom_left.depth, surface_modeled.get_dip(),
1.0)
# Rhypo
Rhypo = get_float(metadata["Hypocentral Distance (km)"])
if Rhypo is None:
Rhypo = hypocenter.distance_to_mesh(target_site)
# Repi
Repi = get_float(metadata["Epicentral Distance (km)"])
if Repi is None:
Repi = hypocenter.distance_to_mesh(target_site, with_depths=False)
# Rrup
Rrup = get_float(metadata["Rupture Distance (km)"])
if Rrup is None:
Rrup = surface_modeled.get_min_distance(target_site)
# Rjb
Rjb = get_float(metadata["Joyner-Boore Distance (km)"])
if Rjb is None:
Rjb = surface_modeled.get_joyner_boore_distance(target_site)
# Rcdpp
Rcdpp = get_float(metadata["Rcdpp"])
if Rcdpp is None:
Rcdpp = surface_modeled.get_cdppvalue(target_site)
# Need to check if Rx and Ry0 are consistant with the other metrics
# when those are coming from the flatfile?
# Rx
Rx = surface_modeled.get_rx_distance(target_site)
# Ry0
Ry0 = surface_modeled.get_ry0_distance(target_site)
distance = RecordDistance(repi=float(Repi),
rhypo=float(Rhypo),
rjb=float(Rjb),
rrup=float(Rrup),
r_x=float(Rx),
ry0=float(Ry0),
rcdpp=float(Rcdpp))
distance.azimuth = get_float(metadata["Source to Site Azimuth (deg)"])
#distance.hanging_wall = get_float(metadata["FW/HW Indicator"])
if metadata["FW/HW Indicator"] == "HW":
distance.hanging_wall = True
elif metadata["FW/HW Indicator"] == "FW":
distance.hanging_wall = False
else:
pass
return distance
PeerMSR(), 1.0, PoissonTOM(1.0), 0.0, 20.0,
SIMPLE_TRACE, 90., 0.0)
COMPLEX_EDGES = [
SIMPLE_TRACE,
Line([Point(14.975, 15.0, 20.0),
Point(15.025, 15.0, 20.0)])
]
COMPLEX_FAULT = ComplexFaultSource("CFLT000", "Complex Fault Source",
"Active Shallow Crust",
EvenlyDiscretizedMFD(7.0, 0.1, [1.0]), 1.0,
PeerMSR(), 1.0, PoissonTOM(1.0),
COMPLEX_EDGES, 0.0)
SIMPLE_FAULT_SURFACE = SimpleFaultSurface.from_fault_data(
SIMPLE_TRACE, 0.0, 20.0, 90.0, 1.0)
CHARACTERISTIC_FAULT = CharacteristicFaultSource(
"CHRFLT000", "Characteristic 000", "Active Shallow Crust",
EvenlyDiscretizedMFD(7.0, 0.1, [1.0]), PoissonTOM(1.0),
SIMPLE_FAULT_SURFACE, 0.0)
class RateGridTestCase(unittest.TestCase):
"""
General test class for Rate Grid calculation
"""
def setUp(self):
"""
Set up limits
"""
def test_get_strike_along_meridian(self):
line = Line([Point(0, 0), Point(1e-5, 1e-3), Point(0, 2e-3)])
surface = SimpleFaultSurface.from_fault_data(line, 1.0, 6.0, 89.9, 0.1)
self.assertAlmostEquals(0, surface.get_strike(), delta=6e-2)
def iter_ruptures(self):
"""
See :meth:
`openquake.hazardlib.source.base.BaseSeismicSource.iter_ruptures`.
Generates a ruptures using the "floating" algorithm: for all the
magnitude values of assigned MFD calculates the rupture size with
respect to MSR and aspect ratio and then places ruptures of that
size on the surface of the whole fault source. The occurrence
rate of each of those ruptures is the magnitude occurrence rate
divided by the number of ruptures that can be placed in a fault.
"""
whole_fault_surface = SimpleFaultSurface.from_fault_data(
self.fault_trace, self.upper_seismogenic_depth,
self.lower_seismogenic_depth, self.dip, self.rupture_mesh_spacing)
whole_fault_mesh = whole_fault_surface.get_mesh()
mesh_rows, mesh_cols = whole_fault_mesh.shape
fault_length = float((mesh_cols - 1) * self.rupture_mesh_spacing)
fault_width = float((mesh_rows - 1) * self.rupture_mesh_spacing)
for (mag, mag_occ_rate) in self.get_annual_occurrence_rates():
rup_cols, rup_rows = self._get_rupture_dimensions(
fault_length, fault_width, mag)
num_rup_along_length = mesh_cols - rup_cols + 1
num_rup_along_width = mesh_rows - rup_rows + 1
num_rup = num_rup_along_length * num_rup_along_width
occurrence_rate = mag_occ_rate / float(num_rup)
for first_row in range(num_rup_along_width):
for first_col in range(num_rup_along_length):
mesh = whole_fault_mesh[first_row:first_row + rup_rows,
first_col:first_col + rup_cols]
if not len(self.hypo_list) and not len(self.slip_list):
hypocenter = mesh.get_middle_point()
occurrence_rate_hypo = occurrence_rate
surface = SimpleFaultSurface(mesh)
yield ParametricProbabilisticRupture(
mag, self.rake,
self.tectonic_region_type, hypocenter, surface,
type(self), occurrence_rate_hypo,
self.temporal_occurrence_model)
else:
for hypo in self.hypo_list:
for slip in self.slip_list:
surface = SimpleFaultSurface(mesh)
hypocenter = surface.get_hypo_location(
self.rupture_mesh_spacing, hypo[:2])
occurrence_rate_hypo = occurrence_rate * \
hypo[2] * slip[1]
rupture_slip_direction = slip[0]
yield ParametricProbabilisticRupture(
mag, self.rake, self.tectonic_region_type,
hypocenter, surface, type(self),
occurrence_rate_hypo,
self.temporal_occurrence_model,
rupture_slip_direction)
def _parse_distance_data(self, event, site, metadata):
"""
Read in the distance related metadata and return an instance of the
:class: smtk.sm_database.RecordDistance
"""
# Compute various distance metrics
# Add calculation of Repi, Rhypo from event and station localizations
# (latitudes, longitudes, depth, elevation)?
target_site = Mesh(np.array([site.longitude]),
np.array([site.latitude]),
np.array([-site.altitude / 1000.0]))
# Warning ratio fixed to 1.5
ratio=1.5
surface_modeled = rcfg.create_planar_surface(
Point(event.longitude, event.latitude, event.depth),
event.mechanism.nodal_planes.nodal_plane_1['strike'],
event.mechanism.nodal_planes.nodal_plane_1['dip'],
event.rupture.area,
ratio)
hypocenter = rcfg.get_hypocentre_on_planar_surface(
surface_modeled,
event.rupture.hypo_loc)
try:
surface_modeled._create_mesh()
except:
dip = surface_modeled.get_dip()
dip_dir = (surface_modeled.get_strike() - 90.) % 360.
ztor = surface_modeled.top_left.depth
d_x = ztor * np.tan(np.radians(90.0 - dip))
top_left_surface = surface_modeled.top_left.point_at(d_x,
-ztor,
dip_dir)
top_left_surface.depth = 0.
top_right_surface = surface_modeled.top_right.point_at(d_x,
-ztor,
dip_dir)
top_right_surface.depth = 0.
surface_modeled = SimpleFaultSurface.from_fault_data(
Line([top_left_surface, top_right_surface]),
surface_modeled.top_left.depth,
surface_modeled.bottom_left.depth,
surface_modeled.get_dip(),
1.0)
# Rhypo
Rhypo = get_float(metadata["Hypocentral Distance (km)"])
if Rhypo is None:
Rhypo = hypocenter.distance_to_mesh(target_site)
# Repi
Repi = get_float(metadata["Epicentral Distance (km)"])
if Repi is None:
Repi= hypocenter.distance_to_mesh(target_site, with_depths=False)
# Rrup
Rrup = get_float(metadata["Rupture Distance (km)"])
if Rrup is None:
Rrup = surface_modeled.get_min_distance(target_site)
# Rjb
Rjb = get_float(metadata["Joyner-Boore Distance (km)"])
if Rjb is None:
Rjb = surface_modeled.get_joyner_boore_distance(target_site)
# Rcdpp
Rcdpp = get_float(metadata["Rcdpp"])
if Rcdpp is None:
Rcdpp = surface_modeled.get_cdppvalue(target_site)
# Need to check if Rx and Ry0 are consistant with the other metrics
# when those are coming from the flatfile?
# Rx
Rx = surface_modeled.get_rx_distance(target_site)
# Ry0
Ry0 = surface_modeled.get_ry0_distance(target_site)
distance = RecordDistance(
repi = float(Repi),
rhypo = float(Rhypo),
rjb = float(Rjb),
rrup = float(Rrup),
r_x = float(Rx),
ry0 = float(Ry0),
rcdpp = float(Rcdpp) )
distance.azimuth = get_float(metadata["Source to Site Azimuth (deg)"])
#distance.hanging_wall = get_float(metadata["FW/HW Indicator"])
if metadata["FW/HW Indicator"] == "HW":
distance.hanging_wall = True
elif metadata["FW/HW Indicator"] == "FW":
distance.hanging_wall = False
else:
pass
return distance
def _parse_distance_data(self, event, site, metadata):
"""
Read in the distance related metadata and return an instance of the
:class: smtk.sm_database.RecordDistance
"""
# Compute various distance metrics
# Add calculation of Repi, Rhypo from event and station localizations
# (latitudes, longitudes, depth, elevation)?
target_site = Mesh(np.array([site.longitude]),
np.array([site.latitude]),
np.array([-site.altitude / 1000.0]))
# Warning ratio fixed to 1.5
ratio = 1.5
if not event.rupture.area:
event.rupture.area = WC1994().get_median_area(
event.magnitude.value, None)
surface_modeled = rcfg.create_planar_surface(
Point(event.longitude, event.latitude, event.depth),
event.mechanism.nodal_planes.nodal_plane_1['strike'],
event.mechanism.nodal_planes.nodal_plane_1['dip'],
event.rupture.area, ratio)
hypocenter = rcfg.get_hypocentre_on_planar_surface(
surface_modeled, event.rupture.hypo_loc)
try:
surface_modeled._create_mesh()
except:
dip = surface_modeled.get_dip()
dip_dir = (surface_modeled.get_strike() - 90.) % 360.
ztor = surface_modeled.top_left.depth
d_x = ztor * np.tan(np.radians(90.0 - dip))
top_left_surface = surface_modeled.top_left.point_at(
d_x, -ztor, dip_dir)
top_left_surface.depth = 0.
top_right_surface = surface_modeled.top_right.point_at(
d_x, -ztor, dip_dir)
top_right_surface.depth = 0.
surface_modeled = SimpleFaultSurface.from_fault_data(
Line([top_left_surface,
top_right_surface]), surface_modeled.top_left.depth,
surface_modeled.bottom_left.depth, surface_modeled.get_dip(),
1.0)
# Rhypo
Rhypo, Repi, Rrup, Rjb, Ry0 = tuple(
map(get_positive_float, [
metadata[key] for key in [
"Hypocentral Distance (km)", "Epicentral Distance (km)",
"Rupture Distance (km)", "Joyner-Boore Distance (km)",
"Ry0 (km)"
]
]))
Rx = get_float(metadata["Rx (km)"]) # Rx can be negative
#Rhypo = get_float(metadata["Hypocentral Distance (km)"])
if Rhypo is None or Rhypo < 0.0:
Rhypo = hypocenter.distance_to_mesh(target_site)
# Repi
#Repi = get_float(metadata["Epicentral Distance (km)"])
if Repi is None or Repi < 0.0:
Repi = hypocenter.distance_to_mesh(target_site, with_depths=False)
# Rrup
#Rrup = get_float(metadata["Rupture Distance (km)"])
if Rrup is None or Rrup < 0.0:
Rrup = surface_modeled.get_min_distance(target_site)[0]
# Rjb
#Rjb = get_float(metadata["Joyner-Boore Distance (km)"])
if Rjb is None or Rjb < 0.0:
Rjb = surface_modeled.get_joyner_boore_distance(target_site)[0]
# Need to check if Rx and Ry0 are consistant with the other metrics
# when those are coming from the flatfile?
# Rx
#Rx = get_float(metadata["Rx (km)"])
if Rx is None or Rx < 0.0:
Rx = surface_modeled.get_rx_distance(target_site)[0]
# Ry0
Ry0 = get_float(metadata["Ry0 (km)"])
if Ry0 is None or Ry0 < 0.0:
Ry0 = surface_modeled.get_ry0_distance(target_site)[0]
distance = RecordDistance(repi=Repi,
rhypo=Rhypo,
rjb=Rjb,
rrup=Rrup,
r_x=Rx,
ry0=Ry0)
distance.azimuth = get_float(metadata["Source to Site Azimuth (deg)"])
#distance.hanging_wall = get_float(metadata["FW/HW Indicator"])
if metadata["FW/HW Indicator"] == "HW":
distance.hanging_wall = True
elif metadata["FW/HW Indicator"] == "FW":
distance.hanging_wall = False
else:
pass
return distance
return