REBECQ (BE)
Quarry blast10 January 2019
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 11:07:592019-01-10
- UTC
- 10:07:592019-01-10
Main parameters
| Date and time | 2019-01-10 10:07:59 UTC 2019-01-10 11:07:59 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.675° N, 4.154° E Uncertainty ± 0.7 km |
| Event ID | ROB 7605 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-01-10 11:43:19 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
- 8
- Epicentral distance
- 6.0 – 86.2km
- Mean velocity, P wave
- 6.0km/s
- Mean velocity, S wave
- 3.4km/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: 8 measurements, root-mean-square deviation 0.29 s. S wave: 5 measurements, root-mean-square deviation 0.10 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)8 stations | |||||
| SKQSteenkerque | 6.0 | 242 | 10:08:00.92+1.29 s | 10:08:01.60+1.97 s | 0.68 |
| RQRRonquières | 9.1 | 147 | 10:08:01.29+1.66 s | – | – |
| UCCBUccle | 19.9 | 47 | 10:08:03.65+4.02 s | 10:08:05.82+6.19 s | 2.17 |
| BRQBracquegnies | 21.6 | 183 | 10:08:04.37+4.74 s | – | – |
| MRDMaredsous | 60.1 | 133 | 10:08:10.06+10.43 s | – | – |
| DOUDourbes | 71.7 | 154 | 10:08:12.06+12.43 s | 10:08:20.96+21.33 s | 8.90 |
| GESGesves | 73.6 | 116 | 10:08:12.34+12.71 s | 10:08:21.61+21.98 s | 9.27 |
| CLAClavier | 86.2 | 109 | 10:08:14.47+14.84 s | 10:08:25.25+25.62 s | 10.78 |