Saint Lambert (BE)
Known mine explosion12 November 2008
- Magnitude
- 0.6ML
- Depth
- 3.3km ± 6.3
- Belgian time
- 13:06:112008-11-12
- UTC
- 12:06:112008-11-12
Main parameters
| Date and time | 2008-11-12 12:06:11 UTC 2008-11-12 13:06:11 Belgian time |
|---|---|
| Magnitude | ML 0.6 |
| Epicentral coordinates | 50.210° N, 4.519° E Uncertainty ± 5.2 km |
| Depth of hypocenter | 3.3 ± 6.3 km |
| Event ID | ROB 3921 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2012-04-27 16:33:58 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
- 4
- Epicentral distance
- 13.9 – 50.9km
- Mean velocity, P wave
- 6.0km/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. Hypocenter at a depth of 3.3 km. P wave: 4 measurements, root-mean-square deviation 0.12 s. S wave: 4 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 | nm | |
|---|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)4 stations | ||||||
| DOUDourbes | 13.9 | 157 | 12:06:14.70+2.73 s | 12:06:16.52+4.55 s | 1.82 | 4.9 |
| MRDMaredsous | 20.5 | 60 | 12:06:15.68+3.71 s | 12:06:18.14+6.17 s | 2.46 | 8.3 |
| GESGesves | 44.9 | 64 | 12:06:19.67+7.70 s | 12:06:25.63+13.66 s | 5.96 | – |
| RCHRochefort | 50.9 | 97 | 12:06:20.47+8.50 s | 12:06:27.89+15.92 s | 7.42 | – |