Today (21-November-2018) Icelandic Met Office issued a warning about strong sulphur smell from Sólheimajökull glacier and Jökulsá á Sólheimasandi (connected glacier river) that come from Katla volcano. People are advised to stay away from this area because if the sulphur smell. There hasn’t been any connected earthquake activity with this increase in sulphur smell.
There is no earthquake activity and no change has been observed on harmonic tremor plots around Katla volcano at this moment. This is unlikely to change, since earthquake activity has been minimal in 2018.