EQ at Nelson at 18:53:30 on 30-Aug-2020
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 4.0
Depth: 83 km
Distance: 244 km
Estimated travel time of P waves: 35 s
Estimated travel time of S waves: 61 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 6.13 | 0.193 | 100.0 |
| T < 1 s | 4.90 | 0.161 | 84.8 |
| T > 1 s | 1.94 | 3.0 | 15.2 |
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.