WELLIN (BE)
Quarry blast24 November 2022
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 14:38:092022-11-24
- UTC
- 13:38:092022-11-24
Main parameters
| Date and time | 2022-11-24 13:38:09 UTC 2022-11-24 14:38:09 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.088° N, 5.134° E Uncertainty ± 4.2 km |
| Event ID | ROB 17870 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-11-28 08:32:27 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
- 8
- Epicentral distance
- 10.0 – 97.5km
- 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: 8 measurements, root-mean-square deviation 0.22 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 | |||||
| RCHRochefort | 10.0 | 42 | 13:38:10.36+1.21 s | – | – |
| GESGesves | 33.2 | 354 | 13:38:14.93+5.78 s | 13:38:19.30+10.15 s | 4.37 |
| MRDMaredsous | 35.3 | 312 | 13:38:15.26+6.11 s | 13:38:20.22+11.07 s | 4.96 |
| DOUDourbes | 38.6 | 271 | 13:38:15.70+6.55 s | 13:38:20.93+11.78 s | 5.23 |
| CLAClavier | 38.7 | 18 | 13:38:15.41+6.26 s | – | – |
| SKQSteenkerque | 97.5 | 310 | 13:38:26.87+17.72 s | – | – |
| Dutch seismic network (KNMI)2 stations | |||||
| TERZTerziet | 92.4 | 36 | 13:38:25.35+16.20 s | – | – |
| HGNHeimansgroeve | 94.2 | 37 | 13:38:26.21+17.06 s | – | – |
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