Mulgor Logo EQ at Christchurch at 05:24:46 on 28-Oct-2021

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 2.7
Depth: 4 km
Distance: 9 km
Estimated travel time of P waves: 2 s
Estimated travel time of S waves: 3 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 37.68 0.187 100.0
T < 1 s 36.57 0.193 99.9
T > 1 s 1.10 1.7 0.1

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.