All Classes and Interfaces

Class	Description
AbrahamsonEtAl_2014	Implementation of the Abrahamson, Silva & Kamai (2014) next generation ground motion model for active crustal regions developed as part of NGA West II.
AbrahamsonGulerce_2020	Implementation of the Abrahamson & Gülerce (2020) ground motion model for subduction regions developed as part of the NGA Subduction project.
AbrahamsonSilva_1997	Modified to work for Alaska.
ApproxGriddedSurface	A GriddedSurface defined by an upper and lower trace whose spacing is scaled to the be as close to a desired target spacing as possible over the entire surface.
AreaSourceAmake
Atkinson_2008p	Modified form of the relationship for the Central and Eastern US by Atkinson (2008).
Atkinson_2010	Implementation of the ground motion model by Atkinson (2010) for shallow and deep earthquakes in Hawaii.
Atkinson_2015	Implementation of the ground motion model by Atkinson (2015) for induced seismicity.
AtkinsonBoore_2003	Abstract implementation of the subduction ground motion model by Atkinson & Boore (2003).
AtkinsonBoore_2006	Abstract implementation of the ground motion model for stable continental regions by Atkinson & Boore (2006).
AtkinsonBoore_2006p	Modified form of the relationship for the Central and Eastern US by Atkinson & Boore (2006).
AtkinsonMacias_2009	Implementation of the subduction interface ground motion model by Atkinson & Macias (2009).
BcHydro_2012	Abstract implementation of the subduction ground motion model created for BC Hydro, Canada, by Addo, Abrahamson, & Youngs (2012).
BooreAtkinson_2008	Implementation of the Boore & Atkinson (2008) next generation attenuation relationship for active crustal regions developed as part of NGA West I.
BooreEtAl_1997	Implementation of the Boore, Joyner & Fumal (1997) ground motion model for shallow earthquakes in active continental crust.
BooreEtAl_1997_Alaska	Alaska-specific implementation of the Boore, Joyner & Fumal (1997) ground motion model for shallow earthquakes in active continental crust.
BooreEtAl_2014	Implementation of the Boore, Stewart, Seyhan, & Atkinson (2014) next generation ground motion model for active crustal regions developed as part ofNGA West II.
BorderType	A BorderType specifies how lines connecting two points on the earth's surface should be represented.
Bounds	A rectangular (in Mercator projection) bounding box specified by a lower-left coordinate (Bounds.min) and an upper-right coordinate (Bounds.max).
Branch<T>	A logic tree branch.
CalcConfig	Calculation configuration.
CalcConfig.Builder	A builder of configuration instances.
CalcConfig.Disagg	Disaggregation configuration.
CalcConfig.Disagg.Bins	The distance, magnitude, and epsilon bins into which contributing sources to hazard will be sorted.
CalcConfig.Gmm	Ground motion model configuration.
CalcConfig.Hazard	Hazard calculation configuration.
CalcConfig.Output	Data and file output settings.
CalcConfig.Performance	Performance and optimization settings.
CalcConfig.Rate	Magnitude-frequency distribution configuration.
CalcConfig.Rate.Bins	The mfd magnitude discretization.
Campbell_1997	Implementation of the Campbell (1997) ground motion model for worldwide earthquakes in active tectonic regions.
Campbell_2003	Implementation of the hybrid ground motion model for stable continental regions by Campbell (2003).
CampbellBozorgnia_2003	Implementation of the Campbell & Bozorgnia (2003) ground motion model for shallow earthquakes in active continental crust.
CampbellBozorgnia_2003_Alaska	Alaska-specific implementation of the Campbell & Bozorgnia (2003) ground motion model for shallow earthquakes in active continental crust.
CampbellBozorgnia_2003_Alaska.Gridded
CampbellBozorgnia_2008	Implementation of the Campbell & Bozorgnia (2008) next generation attenuation for active crustal regions relationship developed as part of NGA West I.
CampbellBozorgnia_2014	Implementation of the Campbell & Bozorgnia (2014) next generation ground motion model for active crustal regions developed as part of NGA West II.
ChiouYoungs_2008	Implementation of the Chiou & Youngs (2008) next generation attenuation relationship for active crustal regions developed as part of NGA West I.
ChiouYoungs_2014	Implementation of the Chiou & Youngs (2014) next generation attenuation relationship for active crustal regions developed as part of NGA West II.
ClusterRuptureSet	Cluster rupture set representation.
ConusStableCrust_2014	Implementation of GMMs for the stable crust used in the 2014 CONUS NSHM.
ConvertsMag	Implemented by ground motion models (GMMs) that perform a magnitude conversion prior to using the value.
Coordinates	Constants and utility methods pertaining to geographic coordinates.
DataType	Data type identifiers.
DefaultGriddedSurface	Deprecated. In the near future this class (and associated heirarchy) will be removed in favor of LocationGrid
DefaultGriddedSurface.Builder
DelimitedData	Container class for streaming delimited data.
Disaggregation	Hazard disaggregation.
Distance	Distance value wrapper.
Distance.Type
DistributionFormat	Distribution format.
DoubleData	Utilities for operating on double-valued data.
Earthquakes	Constants and utility methods pertaining to properties of earthquakes.
EqRate	General purpose earthquake rate and probability data container.
EqRate.Contributor	A contributor to the total earthquake rate.
EqRateExport	Earthquake rate and probability exporter.
ExceedanceModel	Uncertainty models govern how the values of a complementary cumulative normal distribution (or probability of exceedence) are computed given a mean, μ, standard deviation, σ, and other possibly relevant arguments.
FaultRuptureSet	Crustal finite fault rupture set.
Faults	Constants and utility methods pertaining to faults.
FaultStyle	Style-of-faulting identifier.
Feature	A GeoJSON feature.
Feature.Builder	A single-use feature builder.
FeatureCollection	A GeoJSON feature collection.
FocalMech	Generalized identifier for different focal mechanism types.
FrankelEtAl_1996	Implementation of the Frankel et al.
GeoJson	Entry point for creating and parsing GeoJSON features and feature collections.
GeoJson.Builder	A GeoJSON builder.
GeoJson.Type	GeoJSON type identifier.
Geomatrix_1993	Implementation of the subduction interface ground motion model by Geomatrix consultants (1993) to support the 2007 Alaska NSHM.
Gmm	GroundMotionModel (Gmm) identifiers.
Gmm.Group
Gmm.Type
GmmInput	Earthquake Rupture and receiver Site property container used as input to GroundMotionModels (GMMs).
GmmInput.Builder
GmmInput.Constraints	The constraints associated with each GmmInput field.
GmmInput.Field	GmmInput field identifiers.
GmmTotalTree	Convenience class for combined logic trees of GMMs.
GmmTree	GMM logic tree convenience container class that holds a LogicTree<Gmm> and properties derived from a GmmConfig.
GmmUtils	Ground motion model (Gmm) utilities.
Gomez_2022	Implementation of the Gómez (202) ground motion model for crustal and non-crustal regions of Puerto Rico.
GriddedRegion	A GriddedRegion is a Region that has been discretized in latitude and longitude.
GriddedRuptureSet	Base implementation for gridded rupture sets.
GriddedSurface
GridRuptureSet	Gridded seismicity rupture set implementation.
GridSource	Gridded earthquake source (rupture) container.
GridSourceType	Grid source implementation identifier.
GroundMotion	Ground motion model (Gmm) result container.
GroundMotionModel	Interface implemented by all ground motion models (GMMs); these are also commonly referred to as ground motion prediction equations (GMPEs) or attenuation relationships.
GroundMotions	Factory class for creating and working with logic trees of ground motions produced by ground motion models (GMMs).
Hazard	The result of a hazard calculation.
HazardCalcs	Static probabilistic seismic hazard analysis calculators.
HazardExport	Hazard calculation result exporter.
HazardInput	A GroundMotionModel input that carries Rupture rate information along with it
HazardModel	A HazardModel is the top-level wrapper for earthquake SourceTrees and associated GroundMotionModels used in probabilistic seismic hazard analyses (PSHAs) and related calculations.
Idriss_2014	Implementation of the Idriss (2014) next generation ground motion model for active crustal regions developed as part of NGA West II.
Imt	Intesity measure type (Imt) identifiers.
Indexing	Utilities pertaining to the creation, calculation, and derivation of data indices.
InputList	Lightweight List wrapper of HazardInputs.
InterfaceRuptureSet	Subduction interface rupture set.
Interpolator	Utility class to perform linear and log interpolations.
Interpolator.Builder	An interpolator builder.
IntervalArray	An array of immutable, double-valued data that is arranged according to increasing and uniformly spaced double-valued keys.
IntervalArray.Builder	A builder of immutable IntervalArrays.
IntervalData	Static utilities for working with and concrete implementations of 1-, 2- and 3-dimensional interval data containers.
IntervalTable	A 2-dimensional table of immutable, double-valued data that is arranged according to increasing and uniformly spaced double-valued keys.
IntervalTable.Builder	A builder of immutable IntervalTables.
IntervalVolume	A 3-dimensional volume of immutable, double-valued data that is arranged according to increasing and uniformly spaced double-valued keys.
IntervalVolume.Builder	A builder of immutable IntervalVolumes.
IterableRuptureSet	Base RuptureSet implementation that adds support for Rupture iteration and distance filtering functions (predicates).
KuehnEtAl_2020	Implementation of the Kuehn et al.
Location	A location represents a point with reference to the earth's ellipsoid.
LocationGrid	An immutable, tabular grid of locations that supplies row and column data as LocationLists.
LocationGrid.Builder	A single-use builder of LocationGrids.
LocationList	A list of locations.
LocationList.Builder	A reusable LocationList builder.
Locations	Static utility methods to operate on geographic Location data.
LocationVector	This utility class encapsulates information describing a vector between two Locations.
LogicGroup<T>	A logic group is a collection of branches, the weights of which are not required to sum to one.
LogicGroup.Builder<T>	A single-use LogicGroup builder.
LogicTree<T>	A logic tree.
LogicTree.Builder<T>	A single-use LogicTree builder.
LogicTree.EnumBuilder<E,T>	A single-use LogicTree builder where each Branch.id() of the built tree is an Enum.name() and each Branch.value() is any value type.
LogicTree.EnumValueBuilder<E>	A single-use LogicTree builder where each Branch.id() of the built tree is an Enum.name() and each Branch.value() is the enum value itself.
LogicTree.StringValueBuilder	A single-use LogicTree builder where each Branch.id() and Branch.value() of the built tree is the same string.
MagConverter	Magnitude conversion identifiers.
MagnitudeNote	Rupture magnitude description.
Maths	Miscellaneous math utilities.
Mfd	Entry point for creating a magnitude frequency distribution (MFD).
Mfd.Builder	Magnitude frequency distribution (MFD) builder.
Mfd.Properties	Properties object associated with a MFD.
Mfd.Properties.GutenbergRichter	Properties of a Gutenberg–Richter MFD.
Mfd.Properties.Single	Properties of a single magnitude MFD.
Mfd.Properties.TaperedGr	Tapered Gutenberg–Richter MFD properties.
Mfd.Type	Magnitude-frequency distribution (MFD) type identifier.
Mfds	Utility methods for working with magnitude frequency distributions (MFDs).
Models	Factory class for querying source models.
MotazedianAtkinson_2003	Implementation of the preliminary MA05 model that was used for PRVI.
MotazedianAtkinson_2005	Implementation of the ground motion relations for Puerto Rico by Motazedian and Atkinson (2005) in order to evaluate the model for use in the 2025 Puerto Rico and U.S.
MunsonThurber_1997	Implementation of the Munson & Thurber (1997) ground motion model for horizontal peak ground acceleration (PGA) for the island of Hawaii.
MutableXySequence	An XySequence with mutable y-values.
NamedLocation	Marker interface for Locations with place names that are used when comparing hazard models.
NehrpSiteClass	NEHRP site class identifier.
NgaEast	Implementation of the PEER NGA-East ground motion model (Goulet et al., 2018).
ParkerEtAl_2020	Implementation of the Parker et al.
PezeshkEtAl_2011	Implementation of the Pezeshk, Zandieh, & Tavakoli (2011) ground motion model for stable continental regions.
PezeshkEtAl_2018	Implementation of the Pezeshk et al.
Properties	GeoJSON properties helper class.
Properties.Builder	Reusable property map builder.
Properties.Style	Identifiers for simplestyle-spec (v1.1.0) properties.
RateType	Fault and earthquake rate types.
Region	A Region is a polygonal area on the surface of the earth.
Regions	Utility methods pertaining to geographic regions.
RegionUtils	Region export utilities.
RegularRupture	A Rupture is a proxy for an actual earthquake and encapsulates all the source information required by a ground motion model (Gmm).
Rupture	A Rupture is a proxy for an actual earthquake and encapsulates all the source information required by a ground motion model (Gmm).
RuptureFloating	Rupture floating models for gridded surfaces.
RuptureScaling	Identifiers for different rupture dimension scaling models.
RuptureScaling.Dimensions	Container class for computed rupture dimensions.
RuptureSet	A rupture set; usually some physical or pseudo-representation of a fault and associated Mfds governing the size and rate of all possible Ruptures.
RuptureSurface	A parameterization of an earthquake rupture surface.
SadighEtAl_1997	Implementation of the ground motion model for shallow crustal earthquakes by Sadigh et al.
Sequences	Static support methods for sequences.
Sequences.ArrayBuilder	Sequential value array builder.
ShahjoueiPezeshk_2016	Implementation of the Shahjouei and Pezeshk (2016) ground motion model for central and eastern North America (CENA).
SilvaEtAl_2002	Implementation of the Silva et al.
Site	Site characteristics container.
Site.Builder	A reusable Site builder.
Site.Key	Strings used to represent site properties in CSV and JSON files.
SiteData	Site data wrapper class.
SiteData.GmmRegion
SiteData.Values	Optional site data values associated with a location.
Sites	Factory class that generates Site lists from different resources.
SomervilleEtAl_2001	Implementation of the hard rock ground motion model for the Central and Eastern US by Somerville et al.
SourceFeature	An earthquake source feature.
SourceFeature.Decollement	A section of a subduction interface.
SourceFeature.Fault	A section of a crustal fault.
SourceFeature.Grid	A gridded seismicity source.
SourceFeature.Interface	A section of a subduction interface.
SourceFeature.Zone	A source zone.
SourceTree	Top level wrapper class used for any source logic trees.
SourceType	Identifier for different earthquake source or rupture types.
SpudichEtAl_1999_PRVI	PRVI-specific implementation of the Spudich et al.
SystemInputList	A List of HazardInputs that contains a reference to the parent SystemRuptureSet from which the inputs were derived.
SystemRuptureSet	Fault-system rupture set.
SystemRuptureSet.Statistics	Container of summary data for this sytem rupture set.
TavakoliPezeshk_2005	Implementation of the Tavakoli & Pezeshk (2005) ground motion model for stable continental regions.
TectonicSetting	Tectonic setting identifier.
Text	Miscellaneous String utilities.
Text.Delimiter	Delimiter identifiers, each of which can provide a Joiner and Splitter.
ThreadCount	The number of threads with which to intialize thread pools.
ToroEtAl_1997	Implementation of the Toro et al.
Trees	Factory class for manipulating and querying logic trees.
UsgsDampingScaling	USGS implementation of damping scaling factors (DSF).
UsgsDampingScaling.DampingTransformer
UsgsPrviBackbone2025	PRVI GMC class for backbone GMM implementations.
UsgsVerticalMotions	Placeholder class for computing vertical ground motions via vertical-to-horizontal spectral acceleration (V/H) ratios) using the equations of Gülerce and Abrahamson (2011).
ValueFormat	Hazard curve value types.
WongEtAl_2015	Implementation of the ground motion model by Wong et al.
XyPoint	Wrapper interface for xy-value data pairs.
XySequence	An immutable sequence of xy-value pairs that is iterable ascending in x.
YoungsEtAl_1997	Implementation of the subduction ground motion model by Youngs et al.
ZhaoEtAl_2006	Implementation of the subduction ground motion model by Zhao et al.