WAIMES (BE)
Known mine explosion24 June 2015
- Magnitude
- 1.9ML
- Depth
- –
- Belgian time
- 15:17:132015-06-24
- UTC
- 13:17:132015-06-24
Main parameters
| Date and time | 2015-06-24 13:17:13 UTC 2015-06-24 15:17:13 Belgian time |
|---|---|
| Magnitude | ML 1.9 |
| Epicentral coordinates | 50.423° N, 6.122° E Uncertainty ± 1.3 km |
| Event ID | ROB 5355 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2015-06-26 08:28:57 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
- 10.4 – 130.8km
- Mean velocity, P wave
- 6.0km/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: 12 measurements, root-mean-square deviation 0.27 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 | ||||||
| MRGMont Rigi | 10.4 | 341 | 13:17:15.56+1.84 s | – | – | – |
| HOUHouvegnez | 11.3 | 227 | 13:17:15.63+1.91 s | – | – | – |
| MEMSMembach | 22.2 | 339 | 13:17:17.74+4.02 s | 13:17:20.31+6.59 s | 2.57 | 98.8 |
| LCHLa Chartreuse | 44.2 | 303 | 13:17:21.40+7.68 s | 13:17:26.96+13.24 s | 5.56 | – |
| EBNEben-Emael | 52.1 | 323 | 13:17:23.02+9.30 s | – | – | – |
| CLAClavier | 58.3 | 270 | 13:17:23.60+9.88 s | – | – | – |
| RCHRochefort | 70.4 | 245 | 13:17:25.40+11.68 s | – | – | – |
| GESGesves | 73.7 | 267 | 13:17:26.30+12.58 s | 13:17:35.32+21.60 s | 9.02 | – |
| WLFWalferdange | 84.4 | 179 | 13:17:28.73+15.01 s | – | – | – |
| MRDMaredsous | 97.3 | 263 | 13:17:30.19+16.47 s | – | – | – |
| DOUDourbes | 114.8 | 252 | 13:17:32.94+19.22 s | – | – | – |
| SNFSeneffe | 130.8 | 275 | 13:17:35.71+21.99 s | – | – | – |
| Dutch seismic network (KNMI)1 station | ||||||
| HGNHeimansgroeve | 40.3 | 341 | 13:17:20.99+7.27 s | – | – | – |