SOIGNIES (BE)
Known mine explosion16 October 2008
- Magnitude
- 1.1ML
- Depth
- 3.9km ± 3.0
- Belgian time
- 16:47:302008-10-16
- UTC
- 14:47:302008-10-16
Main parameters
| Date and time | 2008-10-16 14:47:30 UTC 2008-10-16 16:47:30 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.573° N, 4.042° E Uncertainty ± 1.9 km |
| Depth of hypocenter | 3.9 ± 3.0 km |
| Event ID | ROB 3797 |
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
- 8.8 – 20.8km
- Mean velocity, P wave
- 5.3km/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 3.9 km. P wave: 5 measurements, root-mean-square deviation 0.06 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 | 8.8 | 18 | 14:47:31.90+1.77 s | 14:47:33.19+3.06 s | 1.29 | – |
| BRQBracquegnies | 12.2 | 147 | 14:47:32.34+2.21 s | – | – | – |
| RQRRonquières | 13.4 | 74 | 14:47:32.58+2.45 s | 14:47:34.55+4.42 s | 1.97 | 23.1 |
| SNFSeneffe | 18.5 | 112 | 14:47:33.57+3.44 s | – | – | – |
| LESLessines | 20.8 | 317 | 14:47:34.01+3.88 s | – | – | – |
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