CHANXHE (BE)
Known mine explosion24 October 2008
- Magnitude
- 0.8ML
- Depth
- 1.2km ± 2.8
- Belgian time
- 13:57:112008-10-24
- UTC
- 11:57:112008-10-24
Main parameters
| Date and time | 2008-10-24 11:57:11 UTC 2008-10-24 13:57:11 Belgian time |
|---|---|
| Magnitude | ML 0.8 |
| Epicentral coordinates | 50.495° N, 5.610° E Uncertainty ± 0.9 km |
| Depth of hypocenter | 1.2 ± 2.8 km |
| Event ID | ROB 3831 |
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
- 7
- Epicentral distance
- 10.3 – 85.0km
- Mean velocity, P wave
- 5.5km/s
- Mean velocity, S wave
- 3.2km/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 1.2 km. P wave: 7 measurements, root-mean-square deviation 0.69 s. S wave: 5 measurements, root-mean-square deviation 0.39 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)7 stations | ||||||
| STISart Tilman | 10.3 | 341 | 11:57:13.65+1.90 s | 11:57:14.67+2.92 s | 1.02 | 7.8 |
| LCHLa Chartreuse | 16.0 | 357 | 11:57:12.43+0.68 s | – | – | – |
| CLAClavier | 23.5 | 249 | 11:57:15.44+3.69 s | 11:57:18.83+7.08 s | 3.39 | 9.9 |
| MEMSMembach | 31.0 | 66 | 11:57:17.12+5.37 s | 11:57:21.32+9.57 s | 4.20 | – |
| GESGesves | 39.2 | 252 | 11:57:18.54+6.79 s | 11:57:23.46+11.71 s | 4.92 | 7.5 |
| KLBKalborn | 56.6 | 141 | 11:57:21.61+9.86 s | 11:57:28.13+16.38 s | 6.52 | – |
| DOUDourbes | 85.0 | 239 | 11:57:26.61+14.86 s | – | – | – |