DINANT (BE)
Quarry blast9 November 2022
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 11:31:052022-11-09
- UTC
- 10:31:052022-11-09
Main parameters
| Date and time | 2022-11-09 10:31:05 UTC 2022-11-09 11:31:05 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.289° N, 4.897° E Uncertainty ± 0.3 km |
| Event ID | ROB 17685 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-11-21 14:41:04 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
- 9.3 – 32.3km
- Mean velocity, P wave
- 6.0km/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 0.08 s. S wave: 4 measurements, root-mean-square deviation 0.06 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 | 9.3 | 279 | 10:31:07.66+1.83 s | 10:31:09.08+3.25 s | 1.42 |
| GESGesves | 17.3 | 52 | 10:31:09.03+3.20 s | 10:31:11.52+5.69 s | 2.49 |
| RCHRochefort | 27.9 | 122 | 10:31:10.87+5.04 s | – | – |
| DOUDourbes | 30.5 | 225 | 10:31:11.19+5.36 s | 10:31:15.42+9.59 s | 4.23 |
| CLAClavier | 32.3 | 63 | 10:31:11.71+5.88 s | 10:31:15.95+10.12 s | 4.24 |