EQ at Christchurch at 20:14:50 on 21-Apr-2023
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 2.2
Depth: 5 km
Distance: 17 km
Estimated travel time of P waves: 3 s
Estimated travel time of S waves: 5 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 4.22 | 0.184 | 100.0 |
| T < 1 s | 4.02 | 0.175 | 97.7 |
| T > 1 s | 0.62 | 3.9 | 2.3 |
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.