EQ at Christchurch at 11:28:12 on 21-Aug-2022
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 2.8
Depth: 5 km
Distance: 24 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 | 19.97 | 0.240 | 100.0 |
| T < 1 s | 18.78 | 0.203 | 99.6 |
| T > 1 s | 1.25 | 2.6 | 0.4 |
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.