Mulgor Logo EQ at Christchurch at 12:05:57 on 09-May-2021

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 2.1
Depth: 23 km
Distance: 19 km
Estimated travel time of P waves: 5 s
Estimated travel time of S waves: 9 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 2.41 0.189 100.0
T < 1 s 1.98 0.134 77.9
T > 1 s 0.94 2.1 21.8

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.