REBECQ (BE)
Quarry blast17 January 2019
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 11:20:352019-01-17
- UTC
- 10:20:352019-01-17
Main parameters
| Date and time | 2019-01-17 10:20:35 UTC 2019-01-17 11:20:35 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.672° N, 4.162° E Uncertainty ± 1.2 km |
| Event ID | ROB 7655 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-01-17 13:52:28 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
- 5
- Epicentral distance
- 6.4 – 59.5km
- 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: 5 measurements, root-mean-square deviation 0.13 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)5 stations | |||||
| SKQSteenkerque | 6.4 | 246 | 10:20:36.81+1.16 s | 10:20:37.67+2.02 s | 0.86 |
| RQRRonquières | 8.6 | 149 | 10:20:37.21+1.56 s | – | – |
| UCCBUccle | 19.7 | 45 | 10:20:39.29+3.64 s | 10:20:41.84+6.19 s | 2.55 |
| LESLessines | 23.0 | 281 | 10:20:40.10+4.45 s | – | – |
| MRDMaredsous | 59.5 | 134 | 10:20:46.31+10.66 s | – | – |
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