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NSHM of 2003 for Puerto Rico and U.S. Virgin Islands (PRVI)

Detailed Description

From the 2003 NSHM by Mueller et al., 2010, the distribution of spectral acceleration (SA in %g) is shown for Puerto Rico and the U.S. Virgin Islands. A 2% probability of exceedance in 50 years (about 2,500-year return period) was modeled for 1 second spectral acceleration. Test sites (16) for the 2025 probabilistic seismic hazard analysis are shown as green circles. J.A. Herrick (12/12/2023)


Herrick JA, Shumway AM and Thompson Jobe JA (2023) Geospatial scope of the 2025 Puerto Rico-U.S. Virgin Islands National Seismic Hazard Model update, in Abstracts for Poster Presentations at 2023 Seismological Society of America Annual Meeting, San Juan, Puerto Rico, April 17–20, Seismological Research Letters.

Mueller C, Frankel A, Petersen M, et al. (2010) New Seismic Hazard Maps for Puerto Rico and the U.S. Virgin Islands. Earthquake Spectra 26(1): 169–185. Available at


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