Mulgor Logo EQ at Christchurch South at 17:58:22 on 28-Jan-2019

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 2.2
Depth: 5 km
Distance: 18 km
Estimated travel time of P waves: 3 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 4.64 0.142 100.0
T < 1 s 3.35 0.151 97.3
T > 1 s 0.52 3.3 2.7

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.