The fine structure of double‐frequency microseisms recorded by seismometers in North America Posted on January 1, 2015June 20, 2017 by Paul Roberson Koper, K. D., and R. Burlacu (2015). The fine structure of double‐frequency microseisms recorded by seismometers in North America, J. Geophys. Res. Solid Earth, 120, 1677‐1691, doi:10.1002/2014JB011820.