EQ at Collingwood at 07:32:20 on 14-Sep-2021
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 4.2
Depth: 146 km
Distance: 343 km
Estimated travel time of P waves: 48 s
Estimated travel time of S waves: 86 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 4.57 | 0.235 | 100.0 |
| T < 1 s | 3.98 | 0.218 | 93.8 |
| T > 1 s | 1.16 | 3.1 | 6.2 |
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.