posted on Mar, 16 2010 @ 11:22 AM
HT, for the purposes of this discussion, refers to Harmonic Tremors. They are a specific type of lower level amplitude earthquake indicative of magma
movement in volcanic regions, and have become a known potential precursor to volcanic eruptions.
They are characterized by real long, steady, and sometimes "beading" signatures on seismographs. Since we observed something that appeared similar
at station SMNR, that is what this discussion is about. But it almost assuredly is not, and is man made activity, from further analysis by several
people here on top of the issue, such as puterman and myself.