Mulgor Logo EQ at Christchurch at 11:28:12 on 21-Aug-2022

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 2.8
Depth: 5 km
Distance: 24 km
Estimated travel time of P waves: 4 s
Estimated travel time of S waves: 7 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 19.97 0.240 100.0
T < 1 s 18.78 0.203 99.6
T > 1 s 1.25 2.6 0.4

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.