CHARLEROI (BE)
Quarry blast20 June 2022
- Magnitude
- 0.8ML
- Depth
- –
- Belgian time
- 11:19:382022-06-20
- UTC
- 09:19:382022-06-20
Main parameters
| Date and time | 2022-06-20 09:19:38 UTC 2022-06-20 11:19:38 Belgian time |
|---|---|
| Magnitude | ML 0.8 |
| Epicentral coordinates | 50.409° N, 4.383° E Uncertainty ± 5.5 km |
| Event ID | ROB 16410 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-06-20 18:45:29 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
- 13.3 – 50.9km
- Mean velocity, P wave
- 3.5km/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 1.07 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 | |||||
| SNFSeneffe | 13.3 | 328 | 09:19:40.27+2.03 s | – | – |
| MRDMaredsous | 29.9 | 113 | 09:19:43.53+5.29 s | 09:19:47.84+9.60 s | 4.31 |
| SKQSteenkerque | 34.2 | 321 | 09:19:44.07+5.83 s | – | – |
| DOUDourbes | 38.1 | 156 | 09:19:45.27+7.03 s | 09:19:49.51+11.27 s | 4.24 |
| LESLessines | 50.9 | 311 | 09:19:51.40+13.16 s | 09:19:54.91+16.67 s | 3.51 |
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