SART-SAINT-LAURENT (BE)
Known mine explosion26 September 2008
- Magnitude
- 1.1ML
- Depth
- 1.6km ± 4.2
- Belgian time
- 14:29:502008-09-26
- UTC
- 12:29:502008-09-26
Main parameters
| Date and time | 2008-09-26 12:29:50 UTC 2008-09-26 14:29:50 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.408° N, 4.766° E Uncertainty ± 1.1 km |
| Depth of hypocenter | 1.6 ± 4.2 km |
| Event ID | ROB 3767 |
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
- 11.8 – 38.1km
- Mean velocity, P wave
- 6.7km/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 1.6 km. P wave: 6 measurements, root-mean-square deviation 0.21 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)6 stations | ||||||
| MRDMaredsous | 11.8 | 179 | 12:29:53.06+2.70 s | – | – | – |
| GESGesves | 23.0 | 96 | 12:29:54.60+4.24 s | 12:29:57.13+6.77 s | 2.53 | 14.3 |
| OTTOttignies | 31.5 | 332 | 12:29:55.47+5.11 s | – | – | – |
| OT5OT5-Genappe | 33.6 | 317 | 12:29:56.38+6.02 s | – | – | – |
| DOUDourbes | 36.9 | 199 | 12:29:56.72+6.36 s | 12:30:01.14+10.78 s | 4.42 | 8.3 |
| CLAClavier | 38.1 | 88 | 12:29:57.08+6.72 s | – | – | – |
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