Pricing

from $3.30 / 1,000 results

USGS Seismic Design Screener - ASCE 7-22 & 7-16 SDC Lookup

Batch coordinates to ASCE 7 seismic design values from the keyless USGS service. Each row carries the edition you pick AND ASCE 7-22, the current standard: SDS, SD1, SDC, SS, S1, SMS, SM1, PGA_M, Fa, Fv, TL, design spectra, ASCE 41-17 retrofit levels. MCP-ready. Screening aid, not a stamped design.

Pricing

from $3.30 / 1,000 results

Rating

0.0

(0)

Developer

Kyle Maloney

Actor stats

Bookmarked

Total users

Monthly active users

8 days ago

Last modified

Categories

Developer tools

Agents

Real estate

Site label

asset_label

Optional

Your name for the screened site, echoed back from the input.

Type:string

Example:San Francisco, CA

Latitude

asset_lat

Optional

Latitude of the site (WGS84).

Type:number | null

Example:37.7749

Longitude

asset_lon

Optional

Longitude of the site (WGS84).

Type:number | null

Example:-122.4194

Risk category

risk_category

Optional

ASCE 7 Risk Category used for this site (I, II, III, or IV).

Type:string | null

Example:II

Site class

site_class

Optional

ASCE 7 Site Class (soil profile) used for this site (A-E).

Type:string | null

Example:D

Reference standard

reference_document

Optional

The ASCE / NEHRP reference document the values in this row were computed under: asce7-16 (default), asce7-22 (current edition, IBC 2024), asce7-10, asce7-05, asce41-17, nehrp-2015 or nehrp-2020.

Type:string | null

Example:asce7-16

Optional

Mapped MCE_R spectral response acceleration at short periods (0.2 s), as a fraction of gravity g.

Type:number | null

Example:1.5

Optional

Mapped MCE_R spectral response acceleration at a 1-second period, as a fraction of g.

Type:number | null

Example:0.6

SDS

sds

Optional

Design spectral response acceleration at short periods, as a fraction of g. A primary ASCE 7 design value.

Type:number | null

Example:1

SD1

sd1

Optional

Design spectral response acceleration at a 1-second period, as a fraction of g. Null when the selected edition requires a site-specific study - check asce722_sd1, because ASCE 7-22 usually resolves those sites.

Type:number | null

Example:0.1

Seismic Design Category

sdc

Optional

Seismic Design Category letter (A-F) governing detailing and system requirements under the SELECTED reference document. Null when a site-specific study is required; sdc_minimum then carries the hard lower bound and asce722_sdc carries the current-edition answer.

Type:string | null

Example:B

PGA

pga

Optional

MAPPED MCE_G peak ground acceleration, as a fraction of gravity g, before the site coefficient is applied. For geotechnical and liquefaction evaluation ASCE 7 Sec. 11.8.3 requires the SITE-ADJUSTED value PGA_M - use the pgam column for that (PGA_M = F_PGA x PGA). Not defined by ASCE 7-05 or ASCE 7-22; see parameters_not_defined_in_edition.

Type:number | null

Example:0.573

Optional

Short-period site coefficient applied to SS for the soil site class. Not defined by ASCE 7-22, which replaced the Fa/Fv method with multi-period response spectra.

Type:number | null

Example:1.6

Optional

1-second-period site coefficient applied to S1. Null with fv_note "See Section 11.4.8" when an ASCE 7-16 site-specific study is triggered. Not defined by ASCE 7-22.

Type:number | null

Example:2.4

Optional

Long-period transition period, in seconds.

Type:number | null

Example:12

Site-specific study required

site_specific_study_required

Optional

True when the service resolved base accelerations but could not finalize SD1/SDC for this high-seismicity + soft-soil combination, meaning a site-specific ground-motion procedure is required (ASCE 7-16 Sec. 11.4.8). This is edition-dependent: ASCE 7-22 resolves most of these sites outright, so check asce722_sd1 / asce722_sdc before commissioning a study. False when no study was triggered.

Type:boolean | null

Example:true

Error

error

Optional

Populated on ERROR rows only (invalid lat/lon, out-of-coverage point, service failure, or a payload that failed the shape/edition check); null otherwise. One bad point never fails the run - but if EVERY point fails upstream the run is failed so nothing is billed.

Type:string | null

Example:null

Source URL

source_url

Optional

The exact USGS ASCE 7 web-service request URL used for this site.

Type:string

Example:https://earthquake.usgs.gov/ws/building-codes/asce7-16/calculate?latitude=37.7749&longitude=-122.4194&riskCategory=II&siteClass=D&title=San+Francisco%2C+CA

Checked at

checked_at

Optional

UTC timestamp (ISO 8601) when the lookup ran.

Type:string

Example:2026-07-15T14:00:00.000Z

Disclaimer

disclaimer

Optional

Advisory-use notice: informational screening aid, not a stamped engineering determination.

Type:string | null

Example:Informational screening aid derived from the USGS ASCE 7 seismic design web service.

Edition family

edition_family

Optional

Which payload family the selected reference document belongs to: asce7 (ASCE 7 design values), nehrp (NEHRP provisions, same shape as the corresponding ASCE 7 edition), or asce41 (ASCE 41 seismic evaluation and retrofit hazard levels).

Type:string | null

Example:asce7

Is the current ASCE 7 edition

is_current_asce7_edition

Optional

True when reference_document is asce7-22, the current edition of ASCE 7 (referenced by IBC 2024). False for superseded editions and for ASCE 41.

Type:boolean | null

Example:false

Edition echoed by USGS

service_reference_document

Optional

The reference document the USGS service reported back for this request. Compared against the edition that was requested on every row: a mismatch means USGS silently re-pointed the path segment and the row is failed rather than resolved.

Type:string | null

Example:ASCE7-16

Primary lookup status

primary_status

Optional

Outcome of the lookup under the SELECTED reference document. ok = design values resolved. site_specific = base accelerations resolved but the service returned no final SD1/SDC. no_coverage = the point is outside the hazard model. unavailable = the service failed or answered for the wrong edition. invalid_input = the supplied lat/lon was rejected before any request was made. Null design values mean different things under each of these, so read this before reading a null.

Type:string | null

Example:ok

Primary lookup error

primary_error

Optional

The reason the lookup under the selected reference document did not resolve. Null on a healthy row - null here is good news, not a dead column.

Type:string | null

Example:null

Parameters not defined by this edition

parameters_not_defined_in_edition

Optional

Comma-separated list of output columns the SELECTED standard does not define at all, so that a null there is read as not-applicable rather than not-checked. ASCE 7-22 replaced the Fa/Fv site-coefficient method with multi-period response spectra and returns "pga,fpga,fa,fv,sdcs,sdc1"; ASCE 7-05 predates the PGA parameters and returns "pga,pgam,fpga,cv,ts,t0"; ASCE 7-16 returns an empty string. Never null on a resolved ASCE 7 row.

Type:string | null

Example:pga,fpga,fa,fv,sdcs,sdc1

SMS

sms

Optional

Site-modified MCE_R spectral response acceleration at short periods, as a fraction of g (ASCE 7 Eq. 11.4-1: SMS = Fa x SS). SDS is two thirds of this.

Type:number | null

Example:1.5

SM1

sm1

Optional

Site-modified MCE_R spectral response acceleration at a 1-second period, as a fraction of g (ASCE 7 Eq. 11.4-2: SM1 = Fv x S1). SD1 is two thirds of this.

Type:number | null

Example:0.151

PGAM (site-adjusted PGA)

pgam

Optional

Site-adjusted MCE_G peak ground acceleration PGA_M, as a fraction of g (PGA_M = F_PGA x PGA). This - not the mapped pga column - is the value ASCE 7 Sec. 11.8.3 requires for liquefaction and geotechnical evaluation. Present under ASCE 7-10/7-16/7-22; ASCE 7-05 does not define it.

Type:number | null

Example:0.631

F_PGA

fpga

Optional

Site coefficient applied to the mapped PGA for the soil site class. Not defined by ASCE 7-05 or ASCE 7-22.

Type:number | null

Example:1.1

SDC from short-period (SDCS)

sdcs

Optional

Seismic Design Category derived from SDS alone (ASCE 7 Table 11.6-1). The governing SDC is the more severe of this and SDC1. Not defined by ASCE 7-22.

Type:string | null

Example:D

SDC from 1-second (SDC1)

sdc1

Optional

Seismic Design Category derived from SD1 alone (ASCE 7 Table 11.6-2). The governing SDC is the more severe of this and SDCS. Not defined by ASCE 7-22.

Type:string | null

Example:B

Governing or minimum SDC

sdc_minimum

Optional

Best available Seismic Design Category for the site: the final sdc when the service gave one, otherwise the more severe of the SDCS/SDC1 pair that did resolve. When a site-specific study is triggered the service nulls sdc but often still reports SDCS, which is a hard lower bound - San Francisco Site Class D returns sdc null and sdcs "D", so the answer is "at least D", not "unknown". Null only when neither sub-category resolved.

Type:string | null

Example:D

SDC is final

sdc_is_final

Optional

True when the service returned a finalized Seismic Design Category. False when sdc_minimum is only a lower bound because a site-specific study is required. Null when the lookup did not resolve at all.

Type:boolean | null

Example:true

Site-specific study reason

site_specific_reason

Optional

Why the service could not finalize SD1/SDC for this site, quoting the note the USGS service itself returned (typically "See Section 11.4.8"). Null when no site-specific study was triggered.

Type:string | null

Example:Service returned no final SD1/SDC for this site class and seismicity. USGS note: See Section 11.4.8.

Fa note

fa_note

Optional

The note the USGS service attached to Fa, if any. Populated when a code section overrides the tabulated value.

Type:string | null

Example:See Section 11.4.8

Fv note

fv_note

Optional

The note the USGS service attached to Fv, if any. This is the field that carries the ASCE 7-16 Sec. 11.4.8 site-specific trigger.

Type:string | null

Example:See Section 11.4.8

Optional

Transition period between the constant-acceleration and constant-velocity branches of the design response spectrum, in seconds (Ts = SD1 / SDS).

Type:number | null

Example:0.813

Optional

Period at which the ascending branch of the design response spectrum meets SDS, in seconds (T0 = 0.2 x Ts).

Type:number | null

Example:0.163

Optional

Vertical ground-motion coefficient used to build the vertical response spectrum (ASCE 7-16 Sec. 11.9). Not defined by ASCE 7-05.

Type:number | null

Example:0.7

SS uniform-hazard

ssuh

Optional

Uniform-hazard (2% in 50 years) short-period spectral acceleration before the risk-targeting and deterministic caps are applied, as a fraction of g.

Type:number | null

Example:0.121

SS risk-targeted

ssrt

Optional

Risk-targeted probabilistic short-period spectral acceleration (SSUH x CRS), as a fraction of g.

Type:number | null

Example:0.116

CRS

crs

Optional

Risk coefficient applied at short periods to convert the uniform-hazard value to a risk-targeted one.

Type:number | null

Example:0.954

SS deterministic

ssd

Optional

Deterministic short-period cap on SS, as a fraction of g. The mapped SS is the lesser of SSRT and SSD.

Type:number | null

Example:1.5

S1 uniform-hazard

s1uh

Optional

Uniform-hazard 1-second spectral acceleration before risk-targeting and deterministic caps, as a fraction of g.

Type:number | null

Example:0.071

S1 risk-targeted

s1rt

Optional

Risk-targeted probabilistic 1-second spectral acceleration (S1UH x CR1), as a fraction of g.

Type:number | null

Example:0.063

CR1

cr1

Optional

Risk coefficient applied at a 1-second period.

Type:number | null

Example:0.886

S1 deterministic

s1d

Optional

Deterministic 1-second cap on S1, as a fraction of g.

Type:number | null

Example:0.6

PGA uniform-hazard

pgauh

Optional

Uniform-hazard peak ground acceleration before deterministic capping, as a fraction of g.

Type:number | null

Example:0.058

PGA deterministic

pgad

Optional

Deterministic cap on the mapped peak ground acceleration, as a fraction of g.

Type:number | null

Example:0.5

Seismicity band

seismicity_band

Optional

Coarse triage band derived from SDS using the ASCE 7 Table 11.6-1 breakpoints: very low (<0.167), low (<0.33), moderate (<0.50), high (<1.0), very high (>=1.0). For an ASCE 41 lookup it is derived from the BSE-1N SXS, which is the ASCE 41 analogue of SDS. Null when no design acceleration resolved.

Type:string | null

Example:very high

What the SDC means

sdc_meaning

Optional

Plain-language summary of what the governing Seismic Design Category implies for detailing, permitted structural systems and geotechnical work. Derived from sdc_minimum, so it is present even when a site-specific study prevented a final SDC.

Type:string | null

Example:SDC D - high seismic risk. Special detailing, structural system height limits, redundancy factors and drift limits apply; geotechnical liquefaction evaluation required (Sec. 11.8).

Hazard model version

model_version

Optional

The USGS national seismic hazard model version behind these values. Differs by edition: v2.0.x for ASCE 7-05, v3.1.x for 7-10, v4.0.x for 7-16 and ASCE 41-17, v5.0.x for 7-22 and NEHRP-2020. Record this with any design value you keep.

Type:string | null

Example:v4.0.x

Interpolation method

spatial_interpolation_method

Optional

How the service interpolated the gridded hazard data to your exact coordinate.

Type:string | null

Example:linearloglinear

USGS service version

service_version

Optional

Build version of the USGS erp-design-ws service that answered the request.

Type:string | null

Example:1.2.1

Response spectrum method

spectrum_type

Optional

Which response-spectrum method the edition uses: two-period (ASCE 7-05/7-10/7-16, the classic SDS/SD1 two-branch spectrum) or multi-period (ASCE 7-22 / NEHRP-2020, 22 tabulated periods). Null for ASCE 41.

Type:string | null

Example:two-period

Design spectrum periods (s)

design_spectrum_periods_s

Optional

Periods, in seconds, of the design response spectrum returned by the service. Pairs with design_spectrum_ordinates_g index for index. Empty array when the service resolved the site but returned no spectrum (which is what a site-specific ASCE 7-16 result looks like). Null when includeSpectra was turned off.

Type:array | null

Example:0,0.025,0.05

Design spectrum ordinates (g)

design_spectrum_ordinates_g

Optional

Design spectral response accelerations, as fractions of g, at the matching periods in design_spectrum_periods_s. This is the curve an engineer plots for a response-spectrum analysis.

Type:array | null

Example:0.049,0.061,0.072

MCE_R spectrum periods (s)

mcer_spectrum_periods_s

Optional

Periods, in seconds, of the risk-targeted maximum considered earthquake (MCE_R) response spectrum.

Type:array | null

Example:0,0.025,0.05

MCE_R spectrum ordinates (g)

mcer_spectrum_ordinates_g

Optional

MCE_R spectral response accelerations, as fractions of g, at the matching periods in mcer_spectrum_periods_s. Nominally 1.5x the design ordinates.

Type:array | null

Example:0.074,0.092,0.108

Vertical spectrum points

vertical_spectrum_points

Optional

Number of points in the vertical design response spectrum the service returned (ASCE 7-16 Sec. 11.9). 0 when the edition supports it but returned nothing for this site; null when the edition does not report one.

Type:integer | null

Example:264

ASCE 41 BSE-2N SXS

asce41_bse2n_sxs

Optional

ASCE 41-17 short-period spectral acceleration parameter SXS at the BSE-2N hazard level, as a fraction of g. BSE-2N is the ASCE 41 Basic Safety Earthquake for new-building-equivalent Collapse Prevention and is numerically the MCE_R. Populated only when referenceDocument is asce41-17.

Type:number | null

Example:1.5

ASCE 41 BSE-2N SX1

asce41_bse2n_sx1

Optional

ASCE 41-17 1-second spectral acceleration parameter SX1 at the BSE-2N hazard level, as a fraction of g. Populated only when referenceDocument is asce41-17.

Type:number | null

Example:1.02

ASCE 41 BSE-1N SXS

asce41_bse1n_sxs

Optional

ASCE 41-17 short-period spectral acceleration parameter SXS at the BSE-1N hazard level, as a fraction of g. BSE-1N is two thirds of BSE-2N and is the new-building-equivalent Life Safety level, numerically the ASCE 7 design level. Populated only when referenceDocument is asce41-17.

Type:number | null

Example:1.5

ASCE 41 BSE-1N SX1

asce41_bse1n_sx1

Optional

ASCE 41-17 1-second spectral acceleration parameter SX1 at the BSE-1N hazard level, as a fraction of g. Populated only when referenceDocument is asce41-17.

Type:number | null

Example:1.02

ASCE 41 BSE-2E SXS

asce41_bse2e_sxs

Optional

ASCE 41-17 short-period spectral acceleration parameter SXS at the BSE-2E hazard level, as a fraction of g. BSE-2E is the existing-building Basic Performance Objective Collapse Prevention level (5% in 50 years), capped at BSE-2N. Populated only when referenceDocument is asce41-17.

Type:number | null

Example:1.5

ASCE 41 BSE-2E SX1

asce41_bse2e_sx1

Optional

ASCE 41-17 1-second spectral acceleration parameter SX1 at the BSE-2E hazard level, as a fraction of g. Populated only when referenceDocument is asce41-17.

Type:number | null

Example:1.02

ASCE 41 BSE-1E SXS

asce41_bse1e_sxs

Optional

ASCE 41-17 short-period spectral acceleration parameter SXS at the BSE-1E hazard level, as a fraction of g. BSE-1E is the existing-building Basic Performance Objective Life Safety level (20% in 50 years), capped at BSE-1N. Populated only when referenceDocument is asce41-17.

Type:number | null

Example:1.5

ASCE 41 BSE-1E SX1

asce41_bse1e_sx1

Optional

ASCE 41-17 1-second spectral acceleration parameter SX1 at the BSE-1E hazard level, as a fraction of g. Populated only when referenceDocument is asce41-17.

Type:number | null

Example:1.02

ASCE 7-22 cross-check status

asce722_status

Optional

Outcome of the ASCE 7-22 (current edition) cross-check for this site. ok = the current-edition values on this row are real. not_requested = includeCurrentEdition was turned off. not_applicable = the primary lookup already IS ASCE 7-22, or is ASCE 41, or the primary lookup failed so no comparison is meaningful. no_coverage = ASCE 7-22 has no data for this point. unavailable = the cross-check request failed. Every asce722_* value is null unless this reads ok.

Type:string | null

Example:ok

ASCE 7-22 cross-check error

asce722_error

Optional

Why the ASCE 7-22 cross-check did not complete. Null when it succeeded or was not attempted.

Type:string | null

Example:null

ASCE 7-22 SS

asce722_ss

Optional

Mapped MCE_R short-period spectral response acceleration under ASCE 7-22, as a fraction of g.

Type:number | null

Example:1.57

ASCE 7-22 S1

asce722_s1

Optional

Mapped MCE_R 1-second spectral response acceleration under ASCE 7-22, as a fraction of g.

Type:number | null

Example:0.6

ASCE 7-22 SDS

asce722_sds

Optional

Design short-period spectral response acceleration under ASCE 7-22, the current edition referenced by IBC 2024.

Type:number | null

Example:1.16

ASCE 7-22 SD1

asce722_sd1

Optional

Design 1-second spectral response acceleration under ASCE 7-22. ASCE 7-22 resolves many high-seismicity soft-soil sites that ASCE 7-16 left null under Sec. 11.4.8.

Type:number | null

Example:1.17

ASCE 7-22 SDC

asce722_sdc

Optional

Seismic Design Category under ASCE 7-22. San Francisco Site Class D returns "D" here while ASCE 7-16 returns null.

Type:string | null

Example:D

ASCE 7-22 SMS

asce722_sms

Optional

Site-modified MCE_R short-period spectral response acceleration under ASCE 7-22.

Type:number | null

Example:1.74

ASCE 7-22 SM1

asce722_sm1

Optional

Site-modified MCE_R 1-second spectral response acceleration under ASCE 7-22.

Type:number | null

Example:1.76

ASCE 7-22 PGAM

asce722_pgam

Optional

Site-adjusted peak ground acceleration PGA_M under ASCE 7-22, as a fraction of g.

Type:number | null

Example:0.59

ASCE 7-22 TL

asce722_tl

Optional

Long-period transition period under ASCE 7-22, in seconds.

Type:number | null

Example:12

ASCE 7-22 site-specific study required

asce722_site_specific_study_required

Optional

True when ASCE 7-22 also could not finalize SD1/SDC for this site. False when ASCE 7-22 resolved it - which is the common outcome for sites that ASCE 7-16 flagged. Null when the cross-check did not run.

Type:boolean | null

Example:false

ASCE 7-22 hazard model version

asce722_model_version

Optional

USGS hazard model version behind the ASCE 7-22 values (v5.0.x), which is a different model from the v4.0.x behind ASCE 7-16.

Type:string | null

Example:v5.0.x

ASCE 7-22 site Vs30 (m/s)

asce722_vs30_m_s

Optional

The shear-wave velocity in the top 30 m that ASCE 7-22 assigned to the requested site class, in metres per second. ASCE 7-16 does not report this.

Type:number | null

Example:260

ASCE 7-22 source URL

asce722_source_url

Optional

The exact USGS request URL used for the ASCE 7-22 cross-check.

Type:string | null

Example:https://earthquake.usgs.gov/ws/building-codes/asce7-22/calculate?latitude=37.7749&longitude=-122.4194&riskCategory=II&siteClass=D&title=San+Francisco

SDC agreement across editions

asce722_sdc_vs_primary

Optional

How the ASCE 7-22 Seismic Design Category compares with the one from the selected edition: same, differs, primary_unresolved (the selected edition returned no final SDC), unavailable, not_requested or not_applicable. Never reads same or differs unless BOTH editions finalized a category.

Type:string | null

Example:primary_unresolved

Current-edition note

current_edition_note

Optional

Plain-language explanation of what this row says about the current standard - including the common case where the selected edition demanded a site-specific study but ASCE 7-22 resolves the site outright. Always populated on a resolved row.

Type:string | null

Example:asce7-16 could not finalize SD1/SDC here, but ASCE 7-22 resolves the site fully: SDS 1.16, SD1 1.17, SDC D.

Design Huddle - Professional Design Automation

alizarin_refrigerator-owner/design-huddle

Automate professional design creation using Design Huddle's template-based design platform. Perfect for marketing agencies, content creators, and businesses needing scalable design production and implement into their existing SaaS infrastructure.

The Howlers

Design Pickle API - Professional Design Request Automation

alizarin_refrigerator-owner/design-pickle-api---professional-design-request-automation

Automate your Design Pickle design requests with this powerful Apify actor. Submit design requests, track status, manage brands, and download completed designs - all programmatically via the Design Pickle API. Unlimited Graphic Design Request Automation

The Howlers

Design Public Scraper

mshopik/design-public-scraper

Scrape Design Public and extract data on home furnishings from designpublic.com. Our Design Public API lets you crawl product information and pricing. The saved data can be downloaded as HTML, JSON, CSV, Excel, and XML.

Mark Carter

Dribbble Design Scraper

klondikeking/dribbble-design-scraper

Extract design shots, designer profiles, and engagement metrics from Dribbble. Get shot titles, images, authors, likes, views, and more for design research and competitor analysis.

Pierrick McD0nald

HN Design Scraper

diodames/hn-design-scraper

Martin Andrle

USGS Earthquake Monitor

dash_authority/usgs-earthquake-monitor

Fetch real-time earthquake data from the USGS Earthquake Hazards Program API. Query seismic events by magnitude, location, and time range. Categories: earthquake, natural hazards, USGS, real-time seismic data.

Dash Authority

Danish Design Store Scraper

mshopik/danish-design-store-scraper

Scrape Danish Design Store and extract data on home and garden from danishdesignstore.com. Our Danish Design Store API lets you crawl product information and pricing. The saved data can be downloaded as HTML, JSON, CSV, Excel, and XML.

Mark Carter

USGS Earthquake Search

ryanclinton/usgs-earthquake-search

USGS Earthquake Search queries the United States Geological Survey (USGS) FDSN Event Web Service to retrieve structured earthquake data from the world's most comprehensive seismic event database.

Ryan Clinton

Figma Community Scraper

eliaalberti/figma-community-scraper

A specialized web scraper that extracts comprehensive metadata from Figma Community files, including templates, plugins, and design resources. This actor enables designers, design ops teams, and researchers to discover, analyze, and track popular design resources at scale.

Elia Alberti

5.0

Figma File Generate

scrapeai/figma-file-generate

Extracts structured data from Figma files including component names, frames, text layers, colors, and design metadata using the Figma API. Perfect for design audits, documentation, or converting design tokens to code.