Yesterday (21-August-2013) saw the start of small glacier flood from Hofsjökull volcano, this glacier flood has continued today and west Jökulsá in Skagarfirði continues to smell of sulfur and is dark color. Conductivity remains high in the glacier river following this glacier flood. It is not known currently for sure what areas of Hofsjökull volcano this comes from or what cauldrons are emptying of hydrothermal water build up.
Announcement (seen on Facebook) from Almannavarnir (Iceland Civil Protection) and Icelandic Meteorological Office on the strength of sulfur following this glacier flood is so high that it is dangerous to be close the source of the glacier flood (closest to Hofsjökull volcano). Strength of sulfur in the area is high enough to damage people lungs, travellers in the area advised to stay away from the source of the glacier river Jökulsá until this glacier flood is over, that might take few days at most. No earthquake activity has been observed in Hofsjökull volcano following this glacier flood. The volcano has been completely quiet during this glacier flood and at current time do not expect it to show any activity. Currently there is little known about Hofsjökull volcano and the activity in it, since it has never erupted during modern era (past 12.000 years).
Icelandic news about this glacier flood
Kanna hvað er á seyði í Vestari Jökulsá (Rúv.is, Icelandic)
Lítið jökulhlaup í Hofsjökli (Rúv.is)
Hlaup í Vestari Jökulsá (mbl.is, pictures)
Blog post updated at 16:56 UTC on 22-August-2013.