ANDENNE (BE)
Quarry blast4 January 2017
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 14:27:272017-01-04
- UTC
- 13:27:272017-01-04
Main parameters
| Date and time | 2017-01-04 13:27:27 UTC 2017-01-04 14:27:27 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.505° N, 4.973° E Uncertainty ± 5.5 km |
| Event ID | ROB 5610 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-01-05 09:15:31 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
- 7
- Epicentral distance
- 15.6 – 74.4km
- 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: 7 measurements, root-mean-square deviation 0.26 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)7 stations | |||||
| GESGesves | 15.6 | 149 | 13:27:30.18+2.93 s | – | – |
| CLAClavier | 25.2 | 112 | 13:27:32.25+5.00 s | 13:27:35.74+8.49 s | 3.49 |
| MRDMaredsous | 26.9 | 213 | 13:27:32.83+5.58 s | 13:27:36.41+9.16 s | 3.58 |
| STISart Tilman | 42.7 | 78 | 13:27:35.18+7.93 s | – | – |
| RCHRochefort | 43.0 | 155 | 13:27:35.14+7.89 s | – | – |
| SKQSteenkerque | 65.3 | 285 | 13:27:38.57+11.32 s | – | – |
| MEMHMembach | 74.4 | 81 | 13:27:40.69+13.44 s | – | – |