greetings qfolks, I am setting up a seismic station here in the santa cruz mountains of northern CA. I am very close (~1 mile) from the san andreas fault line and also very close to the bedrock. I will be starting out with the 1hz and 4.5z geophones from the group buy. Because I am close to an active fault, I would like to add some strong motion sensors. I wonder if anyone has recommendations on sources for these. I don't want to spend thousands on these but I am willing to spend $500-$1000. Does anyone know what I can get in this price range, or where I can get them? I am also wondering if any of you folks use your seismic data to trigger emergency shut off of gas, electricity, etc. Given my location it is inevitable that the ground will shake violently at some point in the future, and I'd like to set up something that would shut off my main propane valve, electricity to selected devices, etc. If anyone is aware of commercial sensors designed to trigger this, or if you have any ideas on this subject, I would appreciate the help. I also have a 75 gallon marine reef aquarium here, and I keep having these visions of water pouring out all over the place. I am wondering if there is something I could do to help make the aqauarium resilient to shaking, as in making a custom stand that would shield the aquarium from the vibrations underneath. Any ideas? One other question, the PEPP broadband system for $1500 looks quite interesting. I am wondering if anyone out there is using this system, and if so I'd like to hear some opinions about your experience with it. I am wondering if I would be better off going with strong motion sensors next, or instead adding the PEPP system to my station. If you were here literally on the edge of the san andreas fault line on the bedrock, which would you choose to do? TIA, Doug _____________________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>