EQ at Christchurch at 12:52:23 on 25-Aug-2019
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 1.9
Depth: 5 km
Distance: 23 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 | 1.42 | 0.296 | 100.0 |
| T < 1 s | 0.98 | 0.162 | 51.4 |
| T > 1 s | 0.78 | 2.7 | 48.8 |
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.