This also really puts into perspective the challenges for the LIGO gravitational wave detector here in Washington.
Such waves are likely a serious issue. I was seeing ground movement of about 20-30 µm, and that might be a few orders of magnitude more than what LIGO detects.
34 m/s sustained 10 minute average winds, gusting to 45 m/s, were measured in Svalbard, and similar speeds in mainland Norway 1000 km further south. Such winds are not uncommon, but this storm hit a large area geographically, which could explain the extreme seismic noise. Even the beginning of the plot was a bit noisy, but I didn't extend the plot to the day before, because then it was windy in Oslo and I got noise from the shaking of my house.