SOIGNIES (BE)
Known mine explosion12 November 2008
- Magnitude
- 0.6ML
- Depth
- 1.2km ± 3.6
- Belgian time
- 16:29:052008-11-12
- UTC
- 15:29:052008-11-12
Main parameters
| Date and time | 2008-11-12 15:29:05 UTC 2008-11-12 16:29:05 Belgian time |
|---|---|
| Magnitude | ML 0.6 |
| Epicentral coordinates | 50.574° N, 4.051° E Uncertainty ± 1.4 km |
| Depth of hypocenter | 1.2 ± 3.6 km |
| Event ID | ROB 3920 |
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
- 8.6 – 21.2km
- Mean velocity, P wave
- 5.2km/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: 5 measurements, root-mean-square deviation 0.03 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)5 stations | ||||||
| SKQSteenkerque | 8.6 | 14 | 15:29:06.97+1.57 s | 15:29:08.01+2.61 s | 1.04 | – |
| BRQBracquegnies | 12.0 | 150 | 15:29:07.58+2.18 s | 15:29:11.01+5.61 s | 3.43 | 13.2 |
| RQRRonquières | 12.8 | 74 | 15:29:07.75+2.35 s | 15:29:09.51+4.11 s | 1.76 | 5.2 |
| SNFSeneffe | 17.9 | 113 | 15:29:08.71+3.31 s | – | – | – |
| LESLessines | 21.2 | 316 | 15:29:09.41+4.01 s | – | – | – |
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