FERNELMONT (BE)
Quarry blast28 March 2017
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 14:19:562017-03-28
- UTC
- 12:19:562017-03-28
Main parameters
| Date and time | 2017-03-28 12:19:56 UTC 2017-03-28 14:19:56 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.565° N, 4.975° E Uncertainty ± 3.2 km |
| Event ID | ROB 5660 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-03-28 16:12:16 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
- 21.5 – 75.7km
- Mean velocity, P wave
- 5.8km/s
- Mean velocity, S wave
- 3.5km/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 0.34 s. S wave: 4 measurements, root-mean-square deviation 0.61 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 | 21.5 | 158 | 12:20:00.05+3.32 s | 12:20:01.78+5.05 s | 1.73 |
| CLAClavier | 28.3 | 125 | 12:20:02.00+5.27 s | 12:20:05.16+8.43 s | 3.16 |
| MRDMaredsous | 32.7 | 207 | 12:20:02.69+5.96 s | 12:20:05.77+9.04 s | 3.08 |
| STISart Tilman | 41.8 | 87 | 12:20:04.20+7.47 s | – | – |
| RCHRochefort | 49.0 | 158 | 12:20:05.33+8.60 s | 12:20:10.98+14.25 s | 5.65 |
| UCCSUccle | 50.6 | 301 | 12:20:05.93+9.20 s | – | – |
| MEMSMembach | 73.5 | 86 | 12:20:09.00+12.27 s | – | – |
| MEMHMembach | 73.5 | 86 | 12:20:09.02+12.29 s | – | – |
| BOUBougnies | 75.7 | 255 | 12:20:09.61+12.88 s | – | – |