EQ at Christchurch at 18:09:32 on 04-Oct-2021
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 3.3
Depth: 5 km
Distance: 5 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
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 520.91 | 0.189 | 100.0 |
| T < 1 s | 510.27 | 0.180 | 100.0 |
| T > 1 s | 8.78 | 1.4 | 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.