Anthony Lomax 🌍 🇪🇺🇺🇦
@ALomaxNet
SBV, like the other stations, shows long monochromatic signal with ~17s period (mono-freq Rayleigh waves?). But filtered above 1Hz SBV (lower plot) also shows seismic(?) signals from repeating sources, with some ~50s apart. Maybe some large, shallow, oscillating volcanic source?
10:10 am · 11 Nov 2018
https://x.com/ALomaxNet/status/1061637338709790721