EQ at Blenheim at 21:11:19 on 21-Feb-2023
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 4.9
Depth: 0 km
Distance: 244 km
Estimated travel time of P waves: 38 s
Estimated travel time of S waves: 66 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 23.83 | 0.242 | 100.0 |
| T < 1 s | 23.42 | 0.242 | 96.1 |
| T > 1 s | 4.27 | 2.0 | 3.9 |
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.