LIBRAMONT-CHEVIGNY (BE)
Quarry blast16 November 2017
- Magnitude
- 1.7ML
- Depth
- –
- Belgian time
- 16:02:282017-11-16
- UTC
- 15:02:282017-11-16
Main parameters
| Date and time | 2017-11-16 15:02:28 UTC 2017-11-16 16:02:28 Belgian time |
|---|---|
| Magnitude | ML 1.7 |
| Epicentral coordinates | 49.974° N, 5.349° E Uncertainty ± 1.3 km |
| Event ID | ROB 6015 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-11-17 11:47:04 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
- 9
- Epicentral distance
- 49.4 – 117.5km
- 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: 9 measurements, root-mean-square deviation 0.30 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)9 stations | |||||
| GESGesves | 49.4 | 338 | 15:02:37.07+9.02 s | 15:02:44.14+16.09 s | 7.07 |
| CLAClavier | 49.6 | 356 | 15:02:36.96+8.91 s | – | – |
| MRDMaredsous | 55.3 | 312 | 15:02:37.50+9.45 s | 15:02:44.47+16.42 s | 6.97 |
| DOUDourbes | 55.7 | 284 | 15:02:37.64+9.59 s | – | – |
| KLBKalborn | 56.2 | 75 | 15:02:37.41+9.36 s | – | – |
| HOUHouvegnez | 63.1 | 48 | 15:02:38.59+10.54 s | – | – |
| WLFWalferdange | 67.3 | 121 | 15:02:39.83+11.78 s | – | – |
| MEMSMembach | 84.9 | 33 | 15:02:43.17+15.12 s | – | – |
| SKQSteenkerque | 117.5 | 310 | 15:02:48.72+20.67 s | – | – |
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