Mulgor Logo EQ at Christchurch at 09:20:23 on 21-Feb-2021

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 2.3
Depth: 1 km
Distance: 25 km
Estimated travel time of P waves: 4 s
Estimated travel time of S waves: 7 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 4.22 0.214 100.0
T < 1 s 3.87 0.182 85.6
T > 1 s 1.65 3.3 14.4

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.