i have a feeling we're in the beginning stages of katla's eruption.

[link to hraun.vedur.is]

the blue spikes you see on that chart are harmonics, and they are escalating, I believe.

I put an image together to show you what I mean..

[link to i43.tinypic.com]

the black vertical lines are showing the peaks and troughs of the 0.5 to 1 hertz signal.

notice the surprisingly calm, downward signal on the blue and green lines this past 2 days?

why I think this may be the start of the eruption phase is i saved ANOTHER pic of this link back on february 28, because I noticed a steady rise in the tremor..

[link to i40.tinypic.com]

notice the start date on BOTH images? they're keeping 15th of February as a start date. do THEY think it's started?

whatever. let's keep an eye on this.