EQ at Christchurch at 05:10:19 on 09-May-2021
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 3.1
Depth: 4 km
Distance: 27 km
Estimated travel time of P waves: 5 s
Estimated travel time of S waves: 8 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 27.92 | 0.125 | 100.0 |
| T < 1 s | 27.80 | 0.127 | 99.7 |
| T > 1 s | 1.34 | 2.5 | 0.3 |
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.