LIBRAMONT-CHEVIGNY (BE)
Known mine explosion3 September 2008
- Magnitude
- 1.1ML
- Depth
- 0.9km ± 3.8
- Belgian time
- 12:08:302008-09-03
- UTC
- 10:08:302008-09-03
Main parameters
| Date and time | 2008-09-03 10:08:30 UTC 2008-09-03 12:08:30 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 49.943° N, 5.374° E Uncertainty ± 1.5 km |
| Depth of hypocenter | 0.9 ± 3.8 km |
| Event ID | ROB 3782 |
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
- 6
- Epicentral distance
- 25.8 – 101.1km
- Mean velocity, P wave
- 5.4km/s
- Mean velocity, S wave
- 3.4km/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 0.9 km. P wave: 6 measurements, root-mean-square deviation 0.19 s. S wave: 4 measurements, root-mean-square deviation 0.25 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)6 stations | ||||||
| RCHRochefort | 25.8 | 336 | 10:08:34.89+4.50 s | 10:08:37.78+7.39 s | 2.89 | – |
| CLAClavier | 53.2 | 354 | 10:08:39.78+9.39 s | 10:08:46.18+15.79 s | 6.40 | 5.5 |
| GESGesves | 53.2 | 337 | 10:08:39.95+9.56 s | – | – | – |
| KLBKalborn | 55.5 | 71 | 10:08:40.10+9.71 s | 10:08:46.41+16.02 s | 6.31 | – |
| DOUDourbes | 58.3 | 287 | 10:08:40.47+10.08 s | 10:08:47.05+16.66 s | 6.58 | 6.2 |
| OT5OT5-Genappe | 101.1 | 319 | 10:08:48.98+18.59 s | – | – | – |