CELLES (BE)
Known mine explosion19 January 2016
- Magnitude
- 2.1ML
- Depth
- –
- Belgian time
- 13:01:032016-01-19
- UTC
- 12:01:032016-01-19
Main parameters
| Date and time | 2016-01-19 12:01:03 UTC 2016-01-19 13:01:03 Belgian time |
|---|---|
| Magnitude | ML 2.1 |
| Epicentral coordinates | 50.715° N, 3.440° E Uncertainty ± 3.2 km |
| Event ID | ROB 5443 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2016-01-19 13:18:40 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
- 13
- Epicentral distance
- 45.8 – 141.4km
- Mean velocity, P wave
- 5.5km/s
- Mean velocity, S wave
- 3.3km/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: 10 measurements, root-mean-square deviation 0.66 s. S wave: 8 measurements, root-mean-square deviation 0.83 s.
Stations farther than 120 km are left out of the fit: the first waves to reach them have travelled beneath the crust, through the mantle, where they propagate faster.
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)12 stations | |||||
| SKQSteenkerque | 45.8 | 99 | 12:01:12.19+8.32 s | 12:01:17.73+13.86 s | 5.54 |
| BOUBougnies | 51.0 | 135 | 12:01:12.24+8.37 s | 12:01:18.98+15.11 s | 6.74 |
| BRQBracquegnies | 55.7 | 118 | 12:01:13.45+9.58 s | 12:01:19.50+15.63 s | 6.05 |
| RQRRonquières | 56.8 | 102 | 12:01:13.76+9.89 s | 12:01:22.10+18.23 s | 8.34 |
| ZEVZevekote | 60.4 | 321 | 12:01:14.13+10.26 s | – | – |
| SNFSeneffe | 63.9 | 110 | 12:01:14.57+10.70 s | 12:01:21.82+17.95 s | 7.25 |
| UCCSUccle | 65.6 | 82 | 12:01:14.51+10.64 s | – | – |
| MRDMaredsous | 104.8 | 115 | 12:01:21.49+17.62 s | 12:01:35.50+31.63 s | 14.01 |
| DOUDourbes | 107.2 | 130 | 12:01:24.34+20.47 s | 12:01:35.13+31.26 s | 10.79 |
| GESGesves | 122.4 | 107 | 12:01:24.78+20.91 s | – | – |
| CLAClavier | 136.0 | 103 | 12:01:24.69+20.82 s | 12:01:44.86+40.99 s | 20.17 |
| RCHRochefort | 141.4 | 115 | 12:01:27.82+23.95 s | – | – |
| Network STR1 station | |||||
| MENFMencas | 92.5 | 260 | 12:01:19.70+15.83 s | 12:01:32.37+28.50 s | 12.67 |