Mulgor Logo EQ at Christchurch at 23:39:55 on 30-Oct-2019

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 3.1
Depth: 19 km
Distance: 32 km
Estimated travel time of P waves: 6 s
Estimated travel time of S waves: 11 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 15.05 0.177 100.0
T < 1 s 14.36 0.182 99.8
T > 1 s 0.83 1.9 0.2

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.