COMBLAIN-AU-PONT (BE)
Known mine explosion12 January 2012
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 14:07:042012-01-12
- UTC
- 13:07:042012-01-12
Main parameters
| Date and time | 2012-01-12 13:07:04 UTC 2012-01-12 14:07:04 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.469° N, 5.591° E Uncertainty ± 3.8 km |
| Event ID | ROB 4608 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2012-04-27 16:39:30 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
- 8
- Epicentral distance
- 12.8 – 82.3km
- Mean velocity, P wave
- 5.3km/s
- Mean velocity, S wave
- 3.1km/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: 8 measurements, root-mean-square deviation 0.24 s. S wave: 4 measurements, root-mean-square deviation 0.35 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 | |||||
| STISart Tilman | 12.8 | 351 | 13:07:05.93+1.33 s | 13:07:07.55+2.95 s | 1.62 |
| LCHLa Chartreuse | 18.9 | 2 | 13:07:07.18+2.58 s | 13:07:10.26+5.66 s | 3.08 |
| CLAClavier | 21.3 | 255 | 13:07:07.91+3.31 s | 13:07:11.19+6.59 s | 3.28 |
| MEMHMembach | 33.5 | 62 | 13:07:10.43+5.83 s | – | – |
| MEMSMembach | 33.5 | 62 | 13:07:10.50+5.90 s | – | – |
| GESGesves | 37.0 | 256 | 13:07:10.79+6.19 s | – | – |
| DOUDourbes | 82.3 | 240 | 13:07:19.04+14.44 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 40.7 | 36 | 13:07:11.63+7.03 s | 13:07:16.92+12.32 s | 5.29 |