I live in a subdivision in a city in Central Illinois. The geological = survey tells my that in my area, that bedrock is 10-30' feet below. I = have a basement, but also two active kids. I am interested in having a = seismometer that would be capable of detecting New Madrid activity. So far my attempts have involved the construction of a 8" coil using #34 = wire on a 3' - 3" pvc form using a pendulum of 6 magnetron magents. = Coil: Resistance of ~7.1kohm. =20 After I also have 3 - 4.5hz geophones. My questions follow: 1) Can you think of a project that I use the on-hand coil and magnets or = the geophones? Or should I just start over with another project? 2) Basement: Is it a suitable location? I have been told that that = gravel under the basement disperses most of the vibration. Would the = activity of the kids affect the readings? Should the seimometer be = physically secured to the concrete? 3) Can a home brew seismometer be effective in Central Illinois? Thanks for taking the timeI live in a subdivision in a city in = Central=20 Illinois. The geological survey tells my that in my area, that bedrock = is 10-30'=20 feet below. I have a basement, but also two active kids. I am interested = in=20 having a seismometer that would be capable of detecting New Madrid=20 activity.So far my attempts have involved the = construction=20 of a 8" coil using #34 wire on a 3' - 3" pvc form using a pendulum of 6=20 magnetron magents. Coil: Resistance of ~7.1kohm. =After I also have 3 - 4.5hz=20 geophones.My questions follow:1) Can you think of a project that I = use the=20 on-hand coil and magnets or the geophones? Or should I just start over = with=20 another project?2) Basement: Is it a suitable = location? I have=20 been told that that gravel under the basement disperses most=20 of the vibration. Would the activity of the kids affect the = readings?=20 Should the seimometer be physically secured to the = concrete?3) Can a home brew seismometer be = effective=20 in Central Illinois?Thanks for taking the timeJoe