REBECQ (BE)
Quarry blast10 February 2022
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 11:29:122022-02-10
- UTC
- 10:29:122022-02-10
Main parameters
| Date and time | 2022-02-10 10:29:12 UTC 2022-02-10 11:29:12 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.663° N, 4.175° E Uncertainty ± 0.7 km |
| Event ID | ROB 15440 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-02-11 11:18:23 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
- 5
- Epicentral distance
- 6.9 – 25.4km
- Mean velocity, P wave
- 5.6km/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: 5 measurements, root-mean-square deviation 0.15 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)5 stations | |||||
| SKQSteenkerque | 6.9 | 257 | 10:29:14.21+1.35 s | – | – |
| RQRRonquières | 7.3 | 151 | 10:29:14.49+1.63 s | – | – |
| SNFSeneffe | 18.6 | 155 | 10:29:16.61+3.75 s | 10:29:18.88+6.02 s | 2.27 |
| UCCBUccle | 19.8 | 41 | 10:29:16.79+3.93 s | 10:29:19.12+6.26 s | 2.33 |
| TGATangissart | 25.4 | 105 | 10:29:17.46+4.60 s | 10:29:20.81+7.95 s | 3.35 |
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