LESSINES (BE)
Known mine explosion4 September 2008
- Magnitude
- –
- Depth
- 1.9km ± 3.4
- Belgian time
- 11:34:442008-09-04
- UTC
- 09:34:442008-09-04
Main parameters
| Date and time | 2008-09-04 09:34:44 UTC 2008-09-04 11:34:44 Belgian time |
|---|---|
| Magnitude | – |
| Epicentral coordinates | 50.707° N, 3.856° E Uncertainty ± 3.6 km |
| Depth of hypocenter | 1.9 ± 3.4 km |
| Event ID | ROB 3787 |
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
- 1.0 – 47.3km
- Mean velocity, P wave
- 5.8km/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 1.9 km. P wave: 5 measurements, root-mean-square deviation 0.09 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 | |||||
| LESLessines | 1.0 | 298 | 09:34:44.90+0.53 s | – | – |
| SKQSteenkerque | 17.1 | 112 | 09:34:47.37+3.00 s | 09:34:49.39+5.02 s | 2.02 |
| RQRRonquières | 28.4 | 113 | 09:34:49.21+4.84 s | 09:34:53.01+8.64 s | 3.80 |
| SNFSeneffe | 37.3 | 126 | 09:34:50.94+6.57 s | – | – |
| OT2OT2-Rixensart | 47.3 | 90 | 09:34:52.67+8.30 s | – | – |
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