EQ at Christchurch at 12:17:51 on 29-Jul-2020
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 | 1.12 | 0.345 | 100.0 |
| T < 1 s | 1.01 | 0.229 | 76.6 |
| T > 1 s | 0.49 | 1.6 | 23.4 |
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.