WELLIN (BE)
Quarry blast10 October 2022
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 13:28:382022-10-10
- UTC
- 11:28:382022-10-10
Main parameters
| Date and time | 2022-10-10 11:28:38 UTC 2022-10-10 13:28:38 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.072° N, 5.130° E Uncertainty ± 3.2 km |
| Event ID | ROB 17325 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-10-11 11:21:08 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
- 11.5 – 40.5km
- Mean velocity, P wave
- 5.8km/s
- Mean velocity, S wave
- 3.3km/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 0.45 s. S wave: 5 measurements, root-mean-square deviation 0.18 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 | |||||
| RCHRochefort | 11.5 | 37 | 11:28:41.00+2.58 s | 11:28:41.93+3.51 s | 0.93 |
| GESGesves | 34.9 | 355 | 11:28:43.88+5.46 s | 11:28:49.29+10.87 s | 5.41 |
| MRDMaredsous | 36.4 | 315 | 11:28:44.89+6.47 s | 11:28:49.88+11.46 s | 4.99 |
| DOUDourbes | 38.4 | 274 | 11:28:45.24+6.82 s | 11:28:50.04+11.62 s | 4.80 |
| CLAClavier | 40.5 | 18 | 11:28:46.14+7.72 s | 11:28:51.01+12.59 s | 4.87 |