NGraham PAG

These are some resulting figures from my code.

Erebus

From the code you see on the code page:

Erebus tilt data

Obviously, with more events in a stack, the better image you'll get. Handpicking data is a little time consuming, but helps create clearer images by manually getting rid of some noise.

Right now there isn't a clear signal in this image other than what is probably natural drift. Hopefully with more events and looking at other stations we can see a tilt signal before an eruption.

Fuego

From the Lyons 2012 paper, I tried to recreate Figure 2.

Fuego Volcano, Lyons 2012 Figure 2 Recreation

IF you compare this to the figure from the paper, you can see that the plot I got for station F9NE was pretty close, but the others are off in one way or another. Part of it is likely a problem in my code, likely within the filtering. I know some of the problems will arise in the events that I picked to use.

Santiaguito

Santiaguito has a station that has both a seismometer and a tiltmeter, as well as generally cleaner data than Fuego.

Tilt from Jan 2012

This is tilt calculated from my code at just one channel at one time from Santiaguito. It is very close in shape to the tilt measured, though the large peaks detract from that. This data came from the north channel on station SJON.