OLNE (BE)
Known mine explosion17 October 2012
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 15:27:512012-10-17
- UTC
- 13:27:512012-10-17
Main parameters
| Date and time | 2012-10-17 13:27:51 UTC 2012-10-17 15:27:51 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.596° N, 5.710° E Uncertainty ± 4.3 km |
| Event ID | ROB 4783 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2012-10-17 16:23:02 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
- 10.4 – 108.4km
- Mean velocity, P wave
- 5.8km/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 0.22 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)6 stations | |||||
| STISart Tilman | 10.4 | 262 | 13:27:53.24+1.47 s | – | – |
| EBNEben-Emael | 22.5 | 354 | 13:27:55.88+4.11 s | – | – |
| CLAClavier | 35.0 | 236 | 13:27:58.00+6.23 s | – | – |
| RCHRochefort | 59.9 | 215 | 13:28:02.22+10.45 s | – | – |
| DOUDourbes | 97.0 | 235 | 13:28:08.82+17.05 s | – | – |
| WLFWalferdange | 108.4 | 163 | 13:28:10.27+18.50 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 24.4 | 40 | 13:27:56.00+4.23 s | – | – |
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