Fresh earthquake swarms over last the three days, along with fresh hydrothermal activity.
“Iceland Met Office confirmed today that inflation has started in Bárðarbunga volcano,” writes Jon Frimann on his website “Iceland Geology.”
“According to images released by Iceland Met Office this inflation is not huge at the moment, that might change without warning if magma starts flowing into Bárðarbunga volcano magma chamber at faster rate then it currently is doing.
“The question remains how much strain the caldera can now take after the collapse and other unknown factor is that it is not known how much magma is needed before an new eruption can start or how long time this process takes.”
See earthquake locations:
Thanks to William Dugan and Andrew Stranglen for this link