REBECQ (BE)
Quarry blast12 November 2020
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 11:28:572020-11-12
- UTC
- 10:28:572020-11-12
Main parameters
| Date and time | 2020-11-12 10:28:57 UTC 2020-11-12 11:28:57 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.662° N, 4.167° E Uncertainty ± 1.2 km |
| Event ID | ROB 11300 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-11-12 18:58:40 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
- 6
- Epicentral distance
- 6.3 – 25.9km
- Mean velocity, P wave
- 5.6km/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: 6 measurements, root-mean-square deviation 0.21 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)6 stations | |||||
| SKQSteenkerque | 6.3 | 257 | 10:28:58.38+1.24 s | 10:28:59.22+2.08 s | 0.84 |
| RQRRonquières | 7.4 | 146 | 10:28:58.77+1.63 s | – | – |
| SNFSeneffe | 18.7 | 154 | 10:29:00.38+3.24 s | – | – |
| BRQBracquegnies | 20.2 | 186 | 10:29:01.29+4.15 s | – | – |
| UCCBUccle | 20.3 | 42 | 10:29:01.10+3.96 s | 10:29:03.73+6.59 s | 2.63 |
| TGATangissart | 25.9 | 104 | 10:29:01.82+4.68 s | 10:29:04.99+7.85 s | 3.17 |
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