WELLIN (BE)
Known mine explosion23 June 2011
- Magnitude
- 1.3ML
- Depth
- 4.4km ± 4.8
- Belgian time
- 12:06:402011-06-23
- UTC
- 10:06:402011-06-23
Main parameters
| Date and time | 2011-06-23 10:06:40 UTC 2011-06-23 12:06:40 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.089° N, 5.150° E Uncertainty ± 6.2 km |
| Depth of hypocenter | 4.4 ± 4.8 km |
| Event ID | ROB 4536 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2011-07-05 08:06:22 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
- 9.1 – 86.1km
- Mean velocity, P wave
- 6.0km/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 4.4 km. P wave: 6 measurements, root-mean-square deviation 0.35 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 | |||||
| RCHRochefort | 9.1 | 37 | 10:06:42.82+2.46 s | 10:06:44.21+3.85 s | 1.39 |
| GESGesves | 33.2 | 352 | 10:06:47.02+6.66 s | – | – |
| MRDMaredsous | 36.1 | 311 | 10:06:47.40+7.04 s | – | – |
| CLAClavier | 38.2 | 16 | 10:06:46.81+6.45 s | – | – |
| DOUDourbes | 39.7 | 271 | 10:06:47.43+7.07 s | – | – |
| WLFWalferdange | 86.1 | 123 | 10:06:55.50+15.14 s | – | – |
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