Seismograph – Part 4

Made the last physical change to reduce the urban noise this past weekend. We did a speed read of the USGS seismic vault construction guideline, you can pull it down and check it out here; https://pubs.usgs.gov/of/2002/ofr-02-0144/ofr-02-0144.pdf In short, they recomend a bunch of things that I cant come at, either size wise, or cost wise.… Continue reading Seismograph – Part 4