I lived near Lyons, CO for about 20 years. ISTR that there is a fault line in CO, I think on the western slope.
DaveD Sent from a small flat thingy > On Nov 22, 2019, at 02:36, Hal Murray <[email protected]> wrote: > > > [email protected] said: >> I moved to Boulder CO a few months ago. The “curiosity” is to determine >> the position of two antennas at either end of my house and monitor it over >> time, with the idea that one could see plate movement in 3 dimensions plus >> rotation around the axes. > > How much does Boulder move? I'd guess not much so measuring motion will be > tough. You could try to get a lower limit on the speed. > > Looks like that part of the country is not interesting to the USGS: > https://earthquake.usgs.gov/monitoring/gps > > Ballpark numbers. > With a good setup, GPS gives location to about 1 mm. > I live a few miles from the San Andreas fault system. It is shifting about > as fast as your fingernails grow, roughly an inch per year. > > Measuring rotation will be tough if your 2 stations are only 100 ft apart. > Do > you have a friend 1, 10, or 100 miles away? > > PS: Make sure that your antenna mounts are sturdy. You don't want them > drifting as the house ages or you bump into them. > > ---------- > > There is a major USGS campus on the Boulder side of Denver. You might wander > down there and ask around to see if you can find anybody familiar with either > GPS or earthquakes. Or try their web pages. There is probably a public > information contact. > > ---------- > > From a USGS talk tonight on Sea Level Rise. > California is rising about 2 mm per year. Sea level is rising about 3 mm > per year. Net is 1. > East coast is sinking about 3 mm per year. > (Major risk is surge and waves from hurricanes.) > > > -- > These are my opinions. I hate spam. > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
