REBECQ (BE)
Quarry blast29 January 2019
- Magnitude
- 1.2ML
- Depth
- –
- Belgian time
- 11:15:482019-01-29
- UTC
- 10:15:482019-01-29
Main parameters
| Date and time | 2019-01-29 10:15:48 UTC 2019-01-29 11:15:48 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.665° N, 4.155° E Uncertainty ± 0.8 km |
| Event ID | ROB 7730 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-01-29 11:38:53 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
- 4
- Epicentral distance
- 5.6 – 34.2km
- 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: 4 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)4 stations | |||||
| SKQSteenkerque | 5.6 | 251 | 10:15:49.27+1.27 s | 10:15:49.88+1.88 s | 0.61 |
| RQRRonquières | 8.2 | 143 | 10:15:49.65+1.65 s | – | – |
| UCCBUccle | 20.6 | 45 | 10:15:52.01+4.01 s | 10:15:54.47+6.47 s | 2.46 |
| BOUBougnies | 34.2 | 206 | 10:15:54.07+6.07 s | – | – |
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