Due to insufficient resources and the recent development of similar web
tools by third parties, the USGS has streamlined this U.S. Seismic Design
Maps web application. Whereas the former application interacted with users
through a graphical user interface (GUI), the replacement web services
receive the inputs (e.g. latitude and longitude) in the form of a web
address and return the outputs (e.g. SDS and SD1) in
text form, without supplementary graphics. Though designed primarily to be
read by the aforementioned third-party web GUIs (e.g. from ASCE, SEAOC/OSHPD, and ATC), the text outputs are also
human-readable. To see the new web services,
please click here. Step-by-step instructions for using one of these
web services, namely that for the recently published