ROCHEFORT (BE)
Quarry blast8 November 2022
- Magnitude
- 0.6ML
- Depth
- –
- Belgian time
- 12:10:432022-11-08
- UTC
- 11:10:432022-11-08
Main parameters
| Date and time | 2022-11-08 11:10:43 UTC 2022-11-08 12:10:43 Belgian time |
|---|---|
| Magnitude | ML 0.6 |
| Epicentral coordinates | 50.186° N, 5.241° E Uncertainty ± 0.7 km |
| Event ID | ROB 17670 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-11-21 14:40:35 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
- 3.6 – 47.3km
- Mean velocity, P wave
- 5.7km/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 0.09 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 | 3.6 | 196 | 11:10:44.44+0.66 s | 11:10:45.07+1.29 s | 0.63 |
| GESGesves | 24.7 | 334 | 11:10:48.35+4.57 s | 11:10:51.65+7.87 s | 3.30 |
| CLAClavier | 26.3 | 9 | 11:10:48.55+4.77 s | – | – |
| DOUDourbes | 47.3 | 258 | 11:10:52.11+8.33 s | 11:10:58.12+14.34 s | 6.01 |
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