REBECQ (BE)
Quarry blast8 May 2019
- Magnitude
- 1.7ML
- Depth
- –
- Belgian time
- 13:52:422019-05-08
- UTC
- 11:52:422019-05-08
Main parameters
| Date and time | 2019-05-08 11:52:42 UTC 2019-05-08 13:52:42 Belgian time |
|---|---|
| Magnitude | ML 1.7 |
| Epicentral coordinates | 50.678° N, 4.114° E Uncertainty ± 1.4 km |
| Event ID | ROB 8125 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-05-08 14:04:02 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
- 4.0 – 89.0km
- 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 0.11 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)4 stations | |||||
| SKQSteenkerque | 4.0 | 217 | 11:52:43.51+0.94 s | 11:52:43.80+1.23 s | 0.29 |
| RQRRonquières | 11.2 | 135 | 11:52:44.78+2.21 s | – | – |
| UCCBUccle | 21.9 | 53 | 11:52:46.83+4.26 s | 11:52:49.31+6.74 s | 2.48 |
| CLAClavier | 89.0 | 108 | 11:52:57.94+15.37 s | – | – |
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