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Brian R Shiro

Supervisory Geophysicist

Geologic Hazards Science Center

Office Phone: 303-273-8515
ORCID: 0000-0001-8756-288X

1711 Illinois St
CO 80225

Supervisor: Ryan D Gold
The 2021 update of the U.S. National Seismic Hazard Model for Hawaii succeeds the twenty-year-old former model by incorporating new data and modeling techniques to improve the ground shaking forecasts. Output from the model includes probabilistic seismic hazard curves calculated for a 0.02° x 0.02° grid of latitude/longitude locations across Hawaii. The new model provides an expanded suite of hazard curves for twenty-three different ground motion intensity measures, including PGA, PGV, and spectral accelerations between 0.01 and 10 second, and for eight separate soil site classes (VS30 = 1500 m/sec to 150 m/sec), representing NEHRP site classes A/B to E. In addition, gridded uniform- hazard data are provided...
This USGS data release includes data related to the Science magazine manuscript “Cyclic lava effusion during the 2018 eruption of Kīlauea Volcano” by Patrick et al. The data release includes 1) original video as well as thermal, and timelapse images of lava in the proximal Fissure 8 channel, 2) derived estimates of lava level in the channel and bulk effusion rates (not corrected for vesicles), 3) infrasound data, and 4) other miscellaneous supporting data. The manuscript abstract is as follows: “Lava flows present a recurring threat to communities on active volcanoes, and volumetric eruption rate is one of the primary factors controlling flow behavior and hazard. The timescales and driving forces of eruption rate...
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