REBECQ (BE)
Quarry blast3 October 2018
- Magnitude
- 1.9ML
- Depth
- –
- Belgian time
- 15:12:472018-10-03
- UTC
- 13:12:472018-10-03
Main parameters
| Date and time | 2018-10-03 13:12:47 UTC 2018-10-03 15:12:47 Belgian time |
|---|---|
| Magnitude | ML 1.9 |
| Epicentral coordinates | 50.658° N, 4.154° E Uncertainty ± 1.0 km |
| Event ID | ROB 7185 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-10-03 15:27:49 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
- 5.3 – 90.4km
- 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: 5 measurements, root-mean-square deviation 0.03 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 | 5.3 | 259 | 13:12:48.47+1.12 s | 13:12:49.18+1.83 s | 0.71 |
| RQRRonquières | 7.7 | 139 | 13:12:48.88+1.53 s | 13:12:49.87+2.52 s | 0.99 |
| UCCSUccle | 21.2 | 43 | 13:12:51.13+3.78 s | – | – |
| CLAClavier | 85.6 | 108 | 13:13:02.13+14.78 s | – | – |
| DSLSDessel | 90.4 | 45 | 13:13:02.88+15.53 s | – | – |
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