Mulgor Logo EQ at Whanganui at 15:55:24 on 31-Jan-2019

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 4.0
Depth: 12 km
Distance: 422 km
Estimated travel time of P waves: 67 s
Estimated travel time of S waves: 117 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 1.33 1.391 100.0
T < 1 s 0.72 0.478 21.1
T > 1 s 1.43 2.1 78.9

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.