REBECQ (BE)
Quarry blast7 June 2021
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 11:31:162021-06-07
- UTC
- 09:31:162021-06-07
Main parameters
| Date and time | 2021-06-07 09:31:16 UTC 2021-06-07 11:31:16 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.667° N, 4.156° E Uncertainty ± 1.3 km |
| Event ID | ROB 13610 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2021-06-08 10:26:19 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
- 5.7 – 26.8km
- Mean velocity, P wave
- 6.0km/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.
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 | 5.7 | 250 | 09:31:17.63+1.37 s | 09:31:17.95+1.69 s | 0.32 |
| RQRRonquières | 8.4 | 144 | 09:31:18.03+1.77 s | – | – |
| SNFSeneffe | 19.6 | 152 | 09:31:20.09+3.83 s | – | – |
| UCCBUccle | 20.4 | 45 | 09:31:20.14+3.88 s | 09:31:22.78+6.52 s | 2.64 |
| TGATangissart | 26.8 | 105 | 09:31:21.05+4.79 s | 09:31:23.93+7.67 s | 2.88 |
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