Seismic Faultline Maps

[msquared48]

Anyone have any web links to downloadable, detailed seismic faultline maps of the Puget Sound Basin of Washington State? The ones in the USGS site are not detailed enough with respect to the location.

Mike McCann
McCann Engineering

 

[msucog]

i believe you can get them on google earth from usgs. i'll look and post link if i find them.

 

[msucog]

see if this helps.

http://earthquake.usgs.gov/regional/qfaults/

http://earthquake.usgs.gov/regional/pacnw/

 

[msucog]

ah i think i found what might help you. be sure to look at figure links

http://earthquake.usgs.gov/regional/pacnw/activefaults/sfz/sfzmapping.php

 

[msquared48]

Thanks, but I've seen these maps before. For what I need, they just do not show enough detail as to how close a particular structure is to a fault line. There must be a map that directly links roads to faultlines - i.e., overlays roads and faultlines.

Mike McCann
McCann Engineering

 

[epongra2]

This might work if your site is in the city of Seattle:

http://www.seattle.gov/DPD/stellent...j/documents/web_informational/dpds_009699.pdf

Your best bet is to contact the local jurisdiction (i.e. City/County) to see if they have hard copy maps or information available online.

Many cities or counties in my area (So. Cal.) have Seismic Safety Elements or similar documents that are available to the public and would contain the information you are looking for.

Keep in mind the difference between a fault and a fault ZONE. When in doubt, contact a good geotech with local experience.

 

[wannabeSE]

Have you tried the DNR website?

http://www.dnr.wa.gov/geology/pubs/publist.htm

http://www.dnr.wa.gov/geology/pubs/pubs_ol.htm

Would GIS help?

http://www.dnr.wa.gov/geology/dig100k.htm