ANTOING (BE)
Quarry blast28 January 2022
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 13:00:182022-01-28
- UTC
- 12:00:182022-01-28
Main parameters
| Date and time | 2022-01-28 12:00:18 UTC 2022-01-28 13:00:18 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.548° N, 3.456° E Uncertainty ± 11.9 km |
| Event ID | ROB 15320 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-02-07 09:22:03 Belgian time
Location map
- Epicentre
- Station that recorded the event
Arrival times at the stations
Each station first records the P wave, the fastest, then the S wave. The farther a station is from the epicentre, the later the waves reach it and the wider the gap between the two.
- Stations
- 6
- Epicentral distance
- 32.8 – 75.8km
- Mean velocity, P wave
- 6.0km/s
- P wave
- S wave
- Curve fitted to the measurements
Notes and method
Curves: travel time of a direct wave in a homogeneous medium. The velocity of each wave and an origin-time shift, common to both, are fitted to the measurements by least squares. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 6 measurements, root-mean-square deviation 0.18 s.
Station measurements
P- and S-wave arrivals and ground displacement measured at each station. Click a column heading to change the order.
| km | ° | UTC | UTC | s | |
|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)6 stations | |||||
| LESLessines | 32.8 | 56 | 12:00:24.22+6.02 s | 12:00:27.88+9.68 s | 3.66 |
| SKQSteenkerque | 45.6 | 75 | 12:00:26.20+8.00 s | 12:00:31.93+13.73 s | 5.73 |
| BRQBracquegnies | 48.8 | 99 | 12:00:26.56+8.36 s | – | – |
| RQRRonquières | 54.8 | 83 | 12:00:28.09+9.89 s | – | – |
| UCCBUccle | 69.6 | 66 | 12:00:30.42+12.22 s | – | – |
| TGATangissart | 75.8 | 85 | 12:00:31.10+12.90 s | – | – |
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