The team of researchers behind these discoveries, presented in the latest issue of the scientific journal Geology, is led by Alasdair Skelton, professor of petrology and geochemistry at Stockholm University. An other member of the research group is Lillemor Claesson at the same department.
Alasdair Skelton feels that it is now time to test whether these observations from Iceland agree with observations and metering in other earthquake-prone areas.
“Water chemistry may thus provide us with a tool which may help us to predict earthquakes. Shortly after the earthquake, we detected a rapid chemical shift for a range of elements and isotopes. We interpret these changes as indicative of the rapidity with which the permeability of the fault zone changes during an earthquake cycle, with one reservoir being sealed off, while another is unsealed,” says Alasdair Skelton.
I used to work for a company called Atlantis Scientific, on a software product called EarthView INSAR (Interferometric Synthetic Aperture Radar). As well as being useful for creating DEM’s (Digital Elevation Maps), it can also be used to generate images showing extremely sensitive elevation changes (accurate to several millimetres, if memory serves) between two time instances, by simply subtracting one DEM from the other. In other words, you can track tectonic movements. If you had a steady (i.e. daily or weekly) stream of radar data over a high-risk area such as California, you could very accurately track the tectonic shifts and perhaps even be able to predict earthquake occurrences.