EQ at Christchurch at 20:43:22 on 21-Jul-2019
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 3.5
Depth: 6 km
Distance: 20 km
Estimated travel time of P waves: 4 s
Estimated travel time of S waves: 6 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 147.01 | 0.273 | 100.0 |
| T < 1 s | 147.38 | 0.278 | 99.8 |
| T > 1 s | 8.65 | 1.8 | 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.