EQ at Christchurch at 06:00:20 on 21-Apr-2023
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 2.7
Depth: 5 km
Distance: 21 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
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 12.39 | 0.237 | 100.0 |
| T < 1 s | 12.32 | 0.230 | 99.8 |
| T > 1 s | 0.57 | 2.1 | 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.