REBECQ (BE)
Quarry blast13 August 2019
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 11:43:172019-08-13
- UTC
- 09:43:172019-08-13
Main parameters
| Date and time | 2019-08-13 09:43:17 UTC 2019-08-13 11:43:17 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.667° N, 4.166° E Uncertainty ± 0.6 km |
| Event ID | ROB 8525 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-08-13 11:51:55 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
- 7
- Epicentral distance
- 6.4 – 85.1km
- 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: 7 measurements, root-mean-square deviation 0.16 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)7 stations | |||||
| SKQSteenkerque | 6.4 | 252 | 09:43:18.68+1.40 s | 09:43:19.46+2.18 s | 0.78 |
| RQRRonquières | 8.0 | 148 | 09:43:18.99+1.71 s | – | – |
| UCCSUccle | 19.9 | 43 | 09:43:20.48+3.20 s | – | – |
| UCCBUccle | 19.9 | 43 | 09:43:20.96+3.68 s | 09:43:23.82+6.54 s | 2.86 |
| BRQBracquegnies | 20.8 | 186 | 09:43:20.98+3.70 s | – | – |
| MRDMaredsous | 59.0 | 133 | 09:43:27.49+10.21 s | – | – |
| CLAClavier | 85.1 | 108 | 09:43:31.89+14.61 s | – | – |
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