Mulgor Logo EQ at Christchurch at 11:36:46 on 22-Dec-2020

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 3.7
Depth: 11 km
Distance: 17 km
Estimated travel time of P waves: 4 s
Estimated travel time of S waves: 6 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 360.78 0.257 100.0
T < 1 s 366.37 0.265 99.9
T > 1 s 13.39 1.3 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.