Urban geophone array offers new look at northern Los Angeles basin

Source: Science Daily

Using an array of coffee-can sized geophones deployed for about a month in backyards, golf courses and public parks, researchers collected enough data to allow them to map the depth and shape of the San Gabriel and San Bernardino sedimentary basins of Los Angeles, California.

https://www.sciencedaily.com/releases/2018/07/180731125543.htm