ANDENNE (BE)
Quarry blast11 January 2019
- Magnitude
- 1.7ML
- Depth
- –
- Belgian time
- 14:16:422019-01-11
- UTC
- 13:16:422019-01-11
Main parameters
| Date and time | 2019-01-11 13:16:42 UTC 2019-01-11 14:16:42 Belgian time |
|---|---|
| Magnitude | ML 1.7 |
| Epicentral coordinates | 50.463° N, 5.017° E Uncertainty ± 1.7 km |
| Event ID | ROB 7615 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-01-11 15:04:35 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
- 10.0 – 87.7km
- Mean velocity, P wave
- 6.0km/s
- Mean velocity, S wave
- 3.4km/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 0.45 s. S wave: 6 measurements, root-mean-square deviation 0.54 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 | 10.0 | 150 | 13:16:43.57+1.32 s | 13:16:45.90+3.65 s | 2.33 |
| CLAClavier | 20.8 | 104 | 13:16:45.55+3.30 s | 13:16:49.42+7.17 s | 3.87 |
| MRDMaredsous | 25.2 | 225 | 13:16:46.17+3.92 s | 13:16:50.40+8.15 s | 4.23 |
| RCHRochefort | 37.4 | 156 | 13:16:48.75+6.50 s | 13:16:54.34+12.09 s | 5.59 |
| DOUDourbes | 50.8 | 216 | 13:16:50.97+8.72 s | 13:16:57.58+15.33 s | 6.61 |
| MEMHMembach | 72.2 | 77 | 13:16:55.02+12.77 s | – | – |
| KLBKalborn | 87.7 | 117 | 13:16:57.60+15.35 s | 13:17:07.77+25.52 s | 10.17 |