REBECQ (BE)
Quarry blast3 September 2020
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 11:13:572020-09-03
- UTC
- 09:13:572020-09-03
Main parameters
| Date and time | 2020-09-03 09:13:57 UTC 2020-09-03 11:13:57 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.680° N, 4.163° E Uncertainty ± 0.7 km |
| Event ID | ROB 10785 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-09-03 17:57:03 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
- 6.8 – 72.0km
- 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 0.11 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)6 stations | |||||
| SKQSteenkerque | 6.8 | 239 | 09:13:58.96+1.31 s | 09:13:59.77+2.12 s | 0.81 |
| RQRRonquières | 9.3 | 152 | 09:13:59.32+1.67 s | – | – |
| UCCBUccle | 19.0 | 47 | 09:14:01.36+3.71 s | 09:14:03.62+5.97 s | 2.26 |
| BRQBracquegnies | 22.3 | 185 | 09:14:01.86+4.21 s | – | – |
| LESLessines | 22.9 | 279 | 09:14:01.98+4.33 s | – | – |
| DOUDourbes | 72.0 | 155 | 09:14:10.57+12.92 s | 09:14:19.20+21.55 s | 8.63 |
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