On the 01-October-2017 there was an increase in earthquake activity in Katla volcano. This increase continues but bad weather is making it difficult to monitor this activity. The largest earthquakes so far had the magnitude of 2,6 (two) all other earthquakes have been smaller in magnitude.
The earthquake activity in Katla volcano. Copyright of this image belongs to Icelandic Met Office.
I have also started to detect low period earthquakes that are possibly from Katla volcano. The increase in that type of activity seems to follow increase in earthquake activity in Katla volcano. Why that happens is not known to me. For the past 48 hours the activity seems to be lower then two days ago, but the weather is bad in the area preventing good detection of small earthquakes in Katla volcano. It also seems that the bad weather has damaged Goðabunga SIL station. It might take a while until Icelandic Met Office can fix Goðabunga SIL station.
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What happened around 5 UTC (3. Oct) at Myrdalsjökull on many station around? Some tremor appeared and was gone after a few minutes.
I don’t see any tremor on the SIL stations around Katla at that time. I am unsure what you mean by tremor in this case.
Cut off by the station and Hz -stamp. But something can still be seen: http://i66.tinypic.com/2rgyu5l.png
Source is from brunnur.IMO-Server.
See also: Austmannsbunga http://hraun.vedur.is/ja/drumplot/drumplot/aus_highpass_2.0.png , sly, rju, …
It does look odd. Sure, the noise is reminiscent of wind, but the fact that the rest of the sheet is mostly flatlining makes wind seem unlikely. Judging by the river flow, moving water doesn’t seem very probable either?
Interesting, doesnt appear to be showing on other SIL stations in Iceland from what I can see either
3.4 East South East of Hvanndalhnúkur, could this explain what has been seen?
No, the noise or interference on the Myrdalsjökull stations was at around 5 am this morning, lasting for 15-20 minutes. The EQ in southern Vatnajökull was around 2 pm.
3.7 and 2.2 at Bárðarbunga plus a mini swarm at Reykjanes
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I have not yet moved the dns settings to the new server. So I am holding off writing new articles for the moment.