Beginning August 12, 2013, USGS scientists and volunteers will be in Hayward area neighborhoods. They will be deploying seismic instruments to record ground movement during the upcoming implosion of CSU’s Warren Hall. The collected data will help these scientists understand the geology around the Hayward fault and better prepare for future earthquakes. The USGS field crews will be wearing USGS identification and will be traveling in vehicles with clearly visible USGS logo placards. The USGS press release from June 19th can be viewed at: USGS Website
The seismographs are fairly small and will be deployed in rings centered on Warren Hall and on a line from the San Francisco Bay shoreline through Warren Hall to Dublin. Here is a picture of the seismograph and a picture of a USGS crew person deploying one in the field. For most sites (like residential yards), a shallow hole in the ground is not necessary.