SOIGNIES (BE)
Known mine explosion21 October 2008
- Magnitude
- –
- Depth
- 3.7km ± 3.8
- Belgian time
- 16:23:442008-10-21
- UTC
- 14:23:442008-10-21
Main parameters
| Date and time | 2008-10-21 14:23:44 UTC 2008-10-21 16:23:44 Belgian time |
|---|---|
| Magnitude | – |
| Epicentral coordinates | 50.577° N, 4.054° E Uncertainty ± 1.4 km |
| Depth of hypocenter | 3.7 ± 3.8 km |
| Event ID | ROB 3830 |
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
- 8.2 – 28.0km
- Mean velocity, P wave
- 4.5km/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 3.7 km. P wave: 6 measurements, root-mean-square deviation 1.12 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 | |||||
| SKQSteenkerque | 8.2 | 13 | 14:23:46.28+1.69 s | – | – |
| RQRRonquières | 12.6 | 75 | 14:23:46.92+2.33 s | – | – |
| SNFSeneffe | 17.9 | 114 | 14:23:47.82+3.23 s | 14:23:51.38+6.79 s | 3.56 |
| LESLessines | 21.1 | 315 | 14:23:48.34+3.75 s | 14:23:51.04+6.45 s | 2.70 |
| BOUBougnies | 22.3 | 200 | 14:23:51.68+7.09 s | – | – |
| OT5OT5-Genappe | 28.0 | 78 | 14:23:49.58+4.99 s | – | – |
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