Mulgor Logo EQ at Christchurch at 20:19:44 on 05-Oct-2021

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 2.7
Depth: 4 km
Distance: 5 km
Estimated travel time of P waves: 1 s
Estimated travel time of S waves: 2 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 102.29 0.139 100.0
T < 1 s 98.39 0.137 100.0
T > 1 s 2.27 1.8 0.0

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.