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USGS Seismic and Hazard Analyses

Purpose

Output seismic coefficients, seismic spectra per ASCE 7-16, deaggregation data for various return period, and hazard data for site-specific analyses.

Instruction

Input the coordinates, site class, risk category (for seismic coefficient and probabilistic), and return period (for probabilistic).

Then click analyze. After you click analyze, 4 loading message will pop up to indicate the status of the calculations. You must wait until the 4 loading messages are complete before clicking Analyze or Clear Result.

If you get an error message, simply click analyze again. If the error persists, reload the page and wait 1 full minute before clicking analyze.

Site Location
Latitude (degrees):

Longitude (degrees):

Structure Property
Info based on the Client


Soil Property for Seismic Coefficients
Site Class D will probably give you null values. Will update future version to handle the null values.


Soil Property for Probabilistic Analysis
Future version will allow user to only select once for both type of analyses.


Hazard/Deaggregation Analysis
Custom Return Period (years):

Analyses Status


Seismic Coefficient Data


Deaggregation Probabilistic Data for Custom Period



Deaggregation Probabilistic Data for Custom and Typical Return Period

UHRS Hazard Data based on Custom Return Period

Risk targeted motion calculator for 2475-year return period

Design Spectras (USGS ASCE 7-16)(if any)