ALLEUR (BE)
Known mine explosion5 February 2009
- Magnitude
- –
- Depth
- –
- Belgian time
- 16:00:212009-02-05
- UTC
- 15:00:212009-02-05
Main parameters
| Date and time | 2009-02-05 15:00:21 UTC 2009-02-05 16:00:21 Belgian time |
|---|---|
| Magnitude | – |
| Epicentral coordinates | 50.689° N, 5.501° E Uncertainty ± 3.3 km |
| Event ID | ROB 3258 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2009-05-30 18:17:43 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
- 8.9 – 92.3km
- 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. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 6 measurements, root-mean-square deviation 0.36 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)6 stations | |||||
| LCHLa Chartreuse | 8.9 | 129 | 15:00:25.05+3.26 s | – | – |
| STISart Tilman | 12.6 | 159 | 15:00:26.60+4.81 s | – | – |
| CLAClavier | 33.2 | 205 | 15:00:29.09+7.30 s | 15:00:31.18+9.39 s | 2.09 |
| MEMSMembach | 37.1 | 104 | 15:00:30.53+8.74 s | 15:00:34.79+13.00 s | 4.26 |
| GESGesves | 44.8 | 221 | 15:00:31.69+9.90 s | – | – |
| DOUDourbes | 92.3 | 225 | 15:00:39.62+17.83 s | – | – |
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