🌊 Volcanic tremor — Katla (Mýrdalsjökull) — The baseline tremor is currently elevated and should only be compared to recent days sinc…

IMO tremor plot (station god). Most of the signal is weather and surf — not eruption confirmation. All stations: vedur.is.

Weather now: wind 11 m/s (Reynisfjalli) — notable — likely weather.

The baseline tremor is currently elevated and should only be compared to recent days since wind and waves do not reliably correlate with the readings. (AI)

Band analysis past 9 days (from digitized RSAM values). High 2-4 Hz + low 0.5-1 Hz = possible magma-movement signal; high 0.5-1 Hz without 2-4 Hz = weather/surf.

Depth is automatic and uncertain; earthquakes alone do not show magma movement — deformation (GPS) and gas are needed. Grey points: automatic fixed-depth values. b-value computed for M≥1.5 (automatic magnitudes make lower completeness unreliable). Preliminary data.

Uplift — GNSS deformation (Reykjanes)

Crustal deformation from continuous GNSS (Nevada Geodetic Lab, Eurasia plate-fixed). Up = land rising (possible magma accumulation), down = subsidence. Daily final solution with about a three-week lag (latest 2026-05-23); third-party reprocessing, not the Met Office real-time solution.

InSAR. InSAR (Sentinel-1 radar) maps surface deformation across the whole area, complementing the GNSS point measurements. Raw interferograms need expertise to read, so they are not shown here — interpreted deformation maps and current status: Icelandic Met Office · raw data: COMET LiCSAR.

Gas / SO₂. Volcanic gas (SO₂) is not shown here from raw data — Sentinel-5P TROPOMI needs heavy integration and is often faint at high latitudes outside major eruptions. Interpreted gas monitoring: air quality (Environment Agency) · MOUNTS Reykjanes · Copernicus atmosphere.