REBECQ (BE)
Quarry blast10 September 2020
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 11:36:292020-09-10
- UTC
- 09:36:292020-09-10
Main parameters
| Date and time | 2020-09-10 09:36:29 UTC 2020-09-10 11:36:29 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.664° N, 4.159° E Uncertainty ± 0.7 km |
| Event ID | ROB 10845 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-09-10 13:19:33 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
- 9
- Epicentral distance
- 5.9 – 89.2km
- Mean velocity, P wave
- 5.4km/s
- Mean velocity, S wave
- 3.2km/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: 9 measurements, root-mean-square deviation 1.19 s. S wave: 4 measurements, root-mean-square deviation 0.11 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)9 stations | |||||
| SKQSteenkerque | 5.9 | 253 | 09:36:30.41+1.22 s | 09:36:31.20+2.01 s | 0.79 |
| RQRRonquières | 8.0 | 144 | 09:36:30.74+1.55 s | – | – |
| UCCBUccle | 20.4 | 44 | 09:36:33.09+3.90 s | 09:36:35.66+6.47 s | 2.57 |
| UCCSUccle | 20.4 | 44 | 09:36:33.24+4.05 s | – | – |
| TGATangissart | 26.5 | 104 | 09:36:33.78+4.59 s | 09:36:37.49+8.30 s | 3.71 |
| MRDMaredsous | 59.1 | 133 | 09:36:39.72+10.53 s | – | – |
| DOUDourbes | 70.5 | 154 | 09:36:45.43+16.24 s | – | – |
| GESGesves | 72.8 | 115 | 09:36:41.90+12.71 s | 09:36:52.30+23.11 s | 10.40 |
| MOLSMol | 89.2 | 46 | 09:36:44.34+15.15 s | – | – |