DINANT (BE)
Quarry blast16 November 2022
- Magnitude
- 0.8ML
- Depth
- –
- Belgian time
- 10:29:592022-11-16
- UTC
- 09:29:592022-11-16
Main parameters
| Date and time | 2022-11-16 09:29:59 UTC 2022-11-16 10:29:59 Belgian time |
|---|---|
| Magnitude | ML 0.8 |
| Epicentral coordinates | 50.285° N, 4.907° E Uncertainty ± 0.7 km |
| Event ID | ROB 17730 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-11-21 14:44:39 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
- 10.1 – 31.8km
- Mean velocity, P wave
- 5.7km/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 0.12 s. S wave: 4 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 | |||||
| MRDMaredsous | 10.1 | 281 | 09:30:01.02+1.77 s | 09:30:02.74+3.49 s | 1.72 |
| GESGesves | 16.9 | 49 | 09:30:02.49+3.24 s | 09:30:04.91+5.66 s | 2.42 |
| RCHRochefort | 27.1 | 122 | 09:30:04.23+4.98 s | 09:30:07.53+8.28 s | 3.30 |
| DOUDourbes | 30.7 | 227 | 09:30:04.93+5.68 s | 09:30:08.90+9.65 s | 3.97 |
| CLAClavier | 31.8 | 62 | 09:30:05.16+5.91 s | – | – |