DINANT (BE)
Quarry blast11 October 2022
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 10:31:032022-10-11
- UTC
- 08:31:032022-10-11
Main parameters
| Date and time | 2022-10-11 08:31:03 UTC 2022-10-11 10:31:03 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.279° N, 4.902° E Uncertainty ± 0.5 km |
| Event ID | ROB 17335 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-10-11 11:21:39 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
- 9.9 – 32.5km
- Mean velocity, P wave
- 5.9km/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 0.13 s. S wave: 5 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)5 stations | |||||
| MRDMaredsous | 9.9 | 285 | 08:31:05.46+1.89 s | 08:31:06.99+3.42 s | 1.53 |
| GESGesves | 17.7 | 48 | 08:31:07.16+3.59 s | 08:31:09.27+5.70 s | 2.11 |
| RCHRochefort | 27.0 | 121 | 08:31:08.47+4.90 s | 08:31:11.93+8.36 s | 3.46 |
| DOUDourbes | 30.0 | 227 | 08:31:08.95+5.38 s | 08:31:13.14+9.57 s | 4.19 |
| CLAClavier | 32.5 | 61 | 08:31:09.45+5.88 s | 08:31:13.91+10.34 s | 4.46 |