Mulgor Logo EQ at Christchurch at 17:16:06 on 21-Oct-2020

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 2.2
Depth: 6 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 7.64 0.172 100.0
T < 1 s 6.78 0.162 98.4
T > 1 s 0.89 2.7 1.6

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.