REBECQ (BE)
Quarry blast12 April 2022
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 12:47:112022-04-12
- UTC
- 10:47:112022-04-12
Main parameters
| Date and time | 2022-04-12 10:47:11 UTC 2022-04-12 12:47:11 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.659° N, 4.165° E Uncertainty ± 1.8 km |
| Event ID | ROB 15940 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-04-14 09:27:22 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 – 72.2km
- Mean velocity, P wave
- 5.4km/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 0.26 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 | 259 | 10:47:12.96+1.21 s | 10:47:13.68+1.93 s | 0.72 |
| RQRRonquières | 7.3 | 144 | 10:47:12.93+1.18 s | – | – |
| SNFSeneffe | 18.5 | 153 | 10:47:15.33+3.58 s | 10:47:17.84+6.09 s | 2.51 |
| UCCBUccle | 20.6 | 42 | 10:47:15.67+3.92 s | – | – |
| TGATangissart | 26.0 | 103 | 10:47:16.25+4.50 s | 10:47:19.24+7.49 s | 2.99 |
| DOUDourbes | 69.8 | 154 | 10:47:25.09+13.34 s | – | – |
| GESGesves | 72.2 | 115 | 10:47:24.74+12.99 s | – | – |
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