Mulgor Logo EQ at Tonga at 22:28:00 on 25-Apr-2021

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 6.4
Depth: 234 km
Distance: 2620 km
Estimated travel time of P waves: 289 s
Estimated travel time of S waves: 526 s

Travel times of P and S waves were derived from this website

Statistics of Signal at Port Levy
Sig. Height μm/s Sig. Period s % of Variance
Raw 4.32 0.854 100.0
T < 1 s 3.24 0.576 71.1
T > 1 s 2.51 2.0 28.9

Significant height and period are derived from a zero-crossing analysis of the wave signal after the arrival time of the p waves.
They are the averages of the highest third of the waves.