Empirical Engine

Conceptual Model

Model Name	Year	Shorthand	IMs Calculated	TechtonicType
CampellBorzorgina	2012	CB_12	AI	ACTIVE_SHALLOW
CampellBorzorgina	2010	CB_10	CAV	ACTIVE_SHALLOW
Bradley	2013	BR_13	PGA, PGV, pSA	ACTIVE_SHALLOW, VOLCANIC
AfshariStewart	2016	AS_16	Ds575, Ds595, Ds2080	ACTIVE_SHALLOW
Zhao	2006	ZA_06	pSA (interpolated above 5.0s), PGA	ACTIVE_SHALLOW, SUBDUCTION_INTERFACE, SUBDUCTION_SLAB
AbrahamsonSilvaKamai	2014	ASK_14	PGV, PGA, pSA	ACTIVE_SHALLOW
BC_Hydro	2016	BC_16	PGA, pSA	SUBDUCTION_INTERFACE, SUBDUCTION_SLAB
BooreStewartSeyhanAtkinson	2014	BSSA_14	PGV, PGA, pSA	ACTIVE_SHALLOW
ChiouYoungs	2014	CY_14	PGV, PGA, pSA	ACTIVE_SHALLOW
McVerry	2006	MV_06	PGA, PGV, pSA (interpolated above 3.0s)	ACTIVE_SHALLOW, SUBDUCTION_INTERFACE, SUBDUCTION_SLAB

Parameter	Description	BR_13	AS_16	CB_12/CB_10	ZA_06	ASK_14	BC_16	BSSA_14	CY_14	MV_06
Rrup	Source-to-site distance (km) (Rrup distance)	✓	✓	✓	✓	✓	✓		✓	✓
Rjb		✓		✓		✓		✓	✓
Rx	distance measured perpendicular to fault strike from surface projection of updip edge of the fault rupture (+ve in downdip dir) (km)	✓				✓			✓
Ry						✓
hw	Flag for sites on the hanging wall	✓				✓			✓
Rtvz	source-to-site distance in the Taupo volcanic zone (TVZ) in km	✓								✓
Vs30		✓	✓	✓		✓	✓	✓	✓
Vs30measured	If the vs30 measurement is taken from a ____ True otherwise False	✓				✓			✓
siteclass	determined from vs30 'hardrock';'rock';'hardsoil';'mediumsoil';'softsoil' (also called siteType) %Hardrock 'hardrock' 1100 A %SCI 'rock' T=0.2s 600 A , B %SCII 'hardsoil' 0.2<T<0.4s 300<V30<600 C %SCIII 'mediumsoil' 0.4<T<0.6s 200<V30<300 D %SCIV 'softsoil' T<0.6s V30<200 E , F	✓			✓					✓
Z1p0	Can be estimated from vs30	✓	✓			✓		✓	✓
Z2p5	Can be estimated from vs30	✓		✓
backarc	Flag for if the site is on the backarc or forearc. Defaults to false.

Parameter	Description	BR_13	AS_16	CB_12/CB_10	ZA_06	ASK_14	BC_16	BSSA_14	CY_14	MV_06
Mw	Moment magnitude	✓	✓	✓	✓	✓	✓	✓	✓	✓
rake	rake angle	✓		✓		✓			✓
dip	dip angle	✓		✓		✓			✓
ztor	minimum dtop for finite faults from the srfinfo file Or hdepth for point sources	✓		✓		✓
rupture_type	(reverse, normal, strikeslip, oblique, unknown) This is currently estimated by Reverse <- 45 < rake < 135; Normal <- -135 < rake < -45; StrikeSlip <- 0 < abs(rake) < 45, 135 < abs(rake) < 180,		✓		✓			✓		✓
tect_type	(active_shallow, volcanic, subduction_interface, subduction_slab)				✓		✓			✓
hdepth	focal depth (km) (hypocentral depth)				✓		✓			✓
width	down dip rupture width					✓
as	flag to indicate aftershock (defaults to False)					✓

TBD

IM_file