EQ at Christchurch at 00:18:13 on 18-May-2021
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 2.3
Depth: 5 km
Distance: 46 km
Estimated travel time of P waves: 8 s
Estimated travel time of S waves: 14 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 1.61 | 0.470 | 100.0 |
| T < 1 s | 1.17 | 0.143 | 22.8 |
| T > 1 s | 1.98 | 2.5 | 76.4 |
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.