REBECQ (BE)
Quarry blast29 April 2022
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 13:02:042022-04-29
- UTC
- 11:02:042022-04-29
Main parameters
| Date and time | 2022-04-29 11:02:04 UTC 2022-04-29 13:02:04 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.708° N, 4.125° E Uncertainty ± 26.4 km |
| Event ID | ROB 16035 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-04-29 14:11:46 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
- 9
- Epicentral distance
- 7.3 – 77.1km
- 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: 9 measurements, root-mean-square deviation 0.70 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)9 stations | |||||
| SKQSteenkerque | 7.3 | 206 | 11:02:06.41+1.62 s | 11:02:07.23+2.44 s | 0.82 |
| RQRRonquières | 13.4 | 148 | 11:02:07.60+2.81 s | – | – |
| LESLessines | 19.9 | 271 | 11:02:08.89+4.10 s | – | – |
| SNFSeneffe | 24.6 | 153 | 11:02:09.61+4.82 s | – | – |
| BRQBracquegnies | 25.2 | 178 | 11:02:08.32+3.53 s | – | – |
| TGATangissart | 30.3 | 112 | 11:02:09.12+4.33 s | – | – |
| MRDMaredsous | 64.2 | 134 | 11:02:16.42+11.63 s | – | – |
| DOUDourbes | 75.9 | 154 | 11:02:16.73+11.94 s | 11:02:30.13+25.34 s | 13.40 |
| GESGesves | 77.1 | 117 | 11:02:18.64+13.85 s | – | – |
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