PRVI GMM - Gomez (2022)

Implement Puerto Rico-specific crustal and non-crustal GMMs:

• Gómez, D.F.C., 2022, Ground motion prediction equations for Puerto Rico, Dissertation, Univ. Puerto Rico, Mayagüez campus.

GMM coefficient Tables 4-2 and 4-4 attached

• Gomez_2022_Table4-4_noncrustal.csv
• Gomez_2022_Table4-2_crustal.csv

Applicability of Gomez (2022) to different site classes. GMM uses binary variables S and H to capture local site effects with values shown for each site class below (appended to Table 3.8).

Table 3.8. Site Class Definitions Used in Japan for Engineering Design Practice, Zhao et al. (2006b).

Site Classes	Average Shear-Wave Velocity	NEHRP Class Approximately		S	H
SC I: (Rock/stiff soil)	Vs30 > 600 m/sec	A+B		0	0
SC II: (Hard soil)	300 m/sec < Vs30 £ 600 m/sec	C		0	1
SC III: (Medium soil)	200 m/sec < Vs30 £ 300 m/sec	D		1	0
SC IV: (Soft soil)	Vs30 £ 200 m/sec	E		1	0

changed milestone to %GMM Sprint

added To Do label

mentioned in merge request !396 (merged)

Implement site term as done in Zhao06; no interpolation, just vs30 bins.

Done - Vs30 bins based on Japan site classes

changed milestone to %GMM Sprint 2

added GMM label

removed To Do label

added In Progress label

assigned to @jaltekruse

closed with commit 357597dc

changed milestone to %Finalize 2023 NSHM and ongoing GMM work