Mulgor Logo EQ at Christchurch at 01:49:44 on 02-Jun-2021

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 3.9
Depth: 7 km
Distance: 22 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 207.86 0.213 100.0
T < 1 s 211.52 0.218 99.8
T > 1 s 7.70 1.7 0.2

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.