Atlantic Basin Wave Propagation (Rayleigh 3.5 km/s)
T+0000s
Global Seismometer Network Traces
Click station to inspect
DBAG - Bangui, CAR
Dist: 1,150km | Expected Delay: 170s
TAM - Tamanrasset, Algeria
Dist: 2,800km | Expected Delay: 410s
DBN - De Bilt, Netherlands
Dist: 5,400km | Expected Delay: 790s
Simulated Frequency
0.0385 Hz
Resonance Peak
26.00 s
Hypothesis Fit Score
0.940
RMS Amplitude
14.2 nm
Longuet-Higgins Non-Linear Coupling Mechanism
Opposing ocean storm swells in the Gulf of Guinea generate non-linear standing pressure waves on the ocean floor. At a 26-second period, wave energy hits acoustic bathymetric resonance over the shallow continental shelf, converting ocean fluid momentum into global Rayleigh elastic surface waves radiating through continental crust.