The two processes left distinct signatures, however, in the moon's gravity field. (sciencedaily.com)
This generates distinct signatures for different kinds of activities. (newscientist.com)
«We found a very distinct signature in the GPR data that indicated a tsunami and confirmed it with independent records detailing a tsunami in the area 900 years ago,» explained lead author Alexander Simms, an associate professor in UCSB's Department of Earth Science and the campus's Earth Research Institute. (sciencedaily.com)