ROCHEFORT (BE)
Quarry blast10 June 2022
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 11:35:322022-06-10
- UTC
- 09:35:322022-06-10
Main parameters
| Date and time | 2022-06-10 09:35:32 UTC 2022-06-10 11:35:32 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.183° N, 5.232° E Uncertainty ± 0.6 km |
| Event ID | ROB 16320 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-06-14 18:20:44 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
- 3.1 – 63.3km
- Mean velocity, P wave
- 6.2km/s
- Mean velocity, S 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 0.24 s. S wave: 5 measurements, root-mean-square deviation 0.19 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 | |||||
| RCHRochefort | 3.1 | 187 | 09:35:33.31+0.75 s | 09:35:33.94+1.38 s | 0.63 |
| GESGesves | 24.7 | 335 | 09:35:37.35+4.79 s | 09:35:40.60+8.04 s | 3.25 |
| CLAClavier | 26.7 | 11 | 09:35:37.75+5.19 s | 09:35:41.12+8.56 s | 3.37 |
| DOUDourbes | 46.6 | 258 | 09:35:40.49+7.93 s | 09:35:46.54+13.98 s | 6.05 |
| KLBKalborn | 63.3 | 98 | 09:35:43.47+10.91 s | 09:35:51.36+18.80 s | 7.89 |