REBECQ (BE)
Quarry blast10 June 2021
- Magnitude
- 1.2ML
- Depth
- –
- Belgian time
- 11:27:252021-06-10
- UTC
- 09:27:252021-06-10
Main parameters
| Date and time | 2021-06-10 09:27:25 UTC 2021-06-10 11:27:25 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.659° N, 4.163° E Uncertainty ± 1.1 km |
| Event ID | ROB 13640 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2021-06-10 17:19:12 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
- 6.0 – 26.1km
- Mean velocity, P wave
- 5.9km/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 0.13 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 | |||||
| SKQSteenkerque | 6.0 | 259 | 09:27:26.76+1.23 s | 09:27:27.52+1.99 s | 0.76 |
| RQRRonquières | 7.4 | 143 | 09:27:27.06+1.53 s | – | – |
| SNFSeneffe | 18.6 | 152 | 09:27:29.17+3.64 s | – | – |
| UCCBUccle | 20.7 | 42 | 09:27:29.44+3.91 s | – | – |
| TGATangissart | 26.1 | 103 | 09:27:30.07+4.54 s | 09:27:33.04+7.51 s | 2.97 |
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