Mulgor Logo EQ at Christchurch at 19:52:33 on 18-Feb-2021

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 2.5
Depth: 5 km
Distance: 1 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 76.24 0.151 100.0
T < 1 s 74.22 0.152 100.0
T > 1 s 0.75 2.9 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.