VELROUX (BE)
Known mine explosion22 September 2008
- Magnitude
- –
- Depth
- 1.1km ± 9.6
- Belgian time
- 13:58:222008-09-22
- UTC
- 11:58:222008-09-22
Main parameters
| Date and time | 2008-09-22 11:58:22 UTC 2008-09-22 13:58:22 Belgian time |
|---|---|
| Magnitude | – |
| Epicentral coordinates | 50.635° N, 5.414° E Uncertainty ± 5.4 km |
| Depth of hypocenter | 1.1 ± 9.6 km |
| Event ID | ROB 3754 |
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
- 5
- Epicentral distance
- 12.1 – 55.1km
- Mean velocity, P wave
- 5.9km/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 1.1 km. P wave: 5 measurements, root-mean-square deviation 0.30 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)5 stations | |||||
| STISart Tilman | 12.1 | 119 | 11:58:24.87+2.10 s | – | – |
| LCHLa Chartreuse | 13.1 | 88 | 11:58:25.63+2.86 s | – | – |
| CLAClavier | 25.3 | 198 | 11:58:26.80+4.03 s | – | – |
| GESGesves | 36.3 | 220 | 11:58:29.23+6.46 s | – | – |
| RCHRochefort | 55.1 | 194 | 11:58:32.38+9.61 s | 11:58:39.01+16.24 s | 6.63 |
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