EQ at Christchurch at 12:05:57 on 09-May-2021
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 2.1
Depth: 23 km
Distance: 19 km
Estimated travel time of P waves: 5 s
Estimated travel time of S waves: 9 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 2.41 | 0.189 | 100.0 |
| T < 1 s | 1.98 | 0.134 | 77.9 |
| T > 1 s | 0.94 | 2.1 | 21.8 |
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.