BRAINE-LE-COMTE (BE)
Quarry blast24 February 2022
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 12:09:292022-02-24
- UTC
- 11:09:292022-02-24
Main parameters
| Date and time | 2022-02-24 11:09:29 UTC 2022-02-24 12:09:29 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.652° N, 4.167° E Uncertainty ± 0.9 km |
| Event ID | ROB 15540 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-02-28 09:59:48 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
- 7
- Epicentral distance
- 6.1 – 57.8km
- Mean velocity, P wave
- 7.0km/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: 7 measurements, root-mean-square deviation 0.28 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)7 stations | |||||
| SKQSteenkerque | 6.1 | 267 | 11:09:30.72+1.17 s | 11:09:31.65+2.10 s | 0.93 |
| RQRRonquières | 6.6 | 141 | 11:09:30.96+1.41 s | – | – |
| SNFSeneffe | 17.7 | 152 | 11:09:33.13+3.58 s | 11:09:35.78+6.23 s | 2.65 |
| UCCBUccle | 21.1 | 40 | 11:09:33.38+3.83 s | – | – |
| UCCSUccle | 21.1 | 40 | 11:09:33.61+4.06 s | – | – |
| TGATangissart | 25.7 | 102 | 11:09:34.15+4.60 s | 11:09:37.21+7.66 s | 3.06 |
| MRDMaredsous | 57.8 | 132 | 11:09:38.28+8.73 s | – | – |
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