Mulgor Logo EQ at Wairoa at 03:43:58 on 20-Dec-2021

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 4.1
Depth: 34 km
Distance: 655 km
Estimated travel time of P waves: 85 s
Estimated travel time of S waves: 152 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 4.56 0.255 100.0
T < 1 s 3.67 0.202 89.5
T > 1 s 1.55 2.6 10.5

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.