EQ at Christchurch at 11:51:42 on 20-Jul-2019
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 3.5
Depth: 6 km
Distance: 21 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 | 63.80 | 0.219 | 100.0 |
| T < 1 s | 58.86 | 0.221 | 99.5 |
| T > 1 s | 6.61 | 1.9 | 0.5 |
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.