AYENEUX (BE)
Known mine explosion8 March 2016
- Magnitude
- 1.7ML
- Depth
- 6.3km ± 2.4
- Belgian time
- 13:46:022016-03-08
- UTC
- 12:46:022016-03-08
Main parameters
| Date and time | 2016-03-08 12:46:02 UTC 2016-03-08 13:46:02 Belgian time |
|---|---|
| Magnitude | ML 1.7 |
| Epicentral coordinates | 50.603° N, 5.723° E Uncertainty ± 1.5 km |
| Depth of hypocenter | 6.3 ± 2.4 km |
| Event ID | ROB 5464 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2016-03-08 14:09:14 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
- 12
- Epicentral distance
- 9.6 – 128.4km
- Mean velocity, P wave
- 6.0km/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. Hypocenter at a depth of 6.3 km. P wave: 11 measurements, root-mean-square deviation 0.38 s. S wave: 6 measurements, root-mean-square deviation 0.66 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 | nm | |
|---|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)12 stations | ||||||
| LCHLa Chartreuse | 9.6 | 294 | 12:46:04.01+1.58 s | 12:46:05.70+3.27 s | 1.69 | – |
| STISart Tilman | 11.5 | 259 | 12:46:04.20+1.77 s | 12:46:06.10+3.67 s | 1.90 | – |
| MEMSMembach | 20.3 | 88 | 12:46:06.10+3.67 s | – | – | – |
| EBNEben-Emael | 21.8 | 352 | 12:46:06.66+4.23 s | – | – | – |
| CLAClavier | 36.2 | 236 | 12:46:08.54+6.11 s | 12:46:14.05+11.62 s | 5.51 | 38.0 |
| GESGesves | 51.2 | 242 | 12:46:11.36+8.93 s | 12:46:18.06+15.63 s | 6.70 | – |
| RCHRochefort | 61.1 | 215 | 12:46:12.45+10.02 s | – | – | – |
| KLBKalborn | 62.4 | 154 | 12:46:13.35+10.92 s | 12:46:20.86+18.43 s | 7.51 | – |
| DOUDourbes | 98.2 | 235 | 12:46:18.86+16.43 s | 12:46:29.71+27.28 s | 10.85 | – |
| BRQBracquegnies | 113.3 | 264 | 12:46:20.97+18.54 s | – | – | – |
| SKQSteenkerque | 116.3 | 273 | 12:46:22.57+20.14 s | – | – | – |
| BOUBougnies | 128.4 | 260 | 12:46:23.75+21.32 s | – | – | – |