No indications of the earth's response to gravitational waves were found. The background noise of ocean waves and earthquakes limits the sensitivity of the earth as a gravitational wave detector. Removing the earthquake and ocean-wave noise removes a significant amount of data and reduces the sensitivity of the earth as a detector. It is possible that this noise sets a high upper limit to the strength of the gravitational waves that can be detected, even with long records of the earth's vibrations using sensitive detectors. A system of detectors like the international deployment of accelerometers placed in a quieter environment, such as the moon, could lower this detection limit.
If the response of the earth to gravitational radiation were available, an upper limit to the strength of these waves could be determined for the range of frequencies examined here. While the response of a homogenous sphere is known, the response of the earth is complicated by its structure. While calculating these limits is beyond the scope of this paper, these limits might produce interesting limits on the types of systems that can exist nearby.