WELLIN (BE)
Quarry blast24 October 2022
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 13:07:232022-10-24
- UTC
- 11:07:232022-10-24
Main parameters
| Date and time | 2022-10-24 11:07:23 UTC 2022-10-24 13:07:23 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.066° N, 5.131° E Uncertainty ± 1.2 km |
| Event ID | ROB 17495 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-10-27 13:06:13 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
- 4
- Epicentral distance
- 12.1 – 38.5km
- Mean velocity, P wave
- 6.1km/s
- Mean velocity, S wave
- 3.4km/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: 4 measurements, root-mean-square deviation 0.14 s. S wave: 4 measurements, root-mean-square deviation 0.11 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)4 stations | |||||
| RCHRochefort | 12.1 | 35 | 11:07:25.62+2.30 s | 11:07:27.54+4.22 s | 1.92 |
| GESGesves | 35.7 | 355 | 11:07:29.76+6.44 s | 11:07:34.43+11.11 s | 4.67 |
| MRDMaredsous | 36.9 | 316 | 11:07:29.68+6.36 s | 11:07:34.61+11.29 s | 4.93 |
| DOUDourbes | 38.5 | 275 | 11:07:30.23+6.91 s | 11:07:35.24+11.92 s | 5.01 |