NAMECHE (BE)
Known mine explosion24 October 2008
- Magnitude
- 0.5ML
- Depth
- 0.8km ± 0.5
- Belgian time
- 13:22:132008-10-24
- UTC
- 11:22:132008-10-24
Main parameters
| Date and time | 2008-10-24 11:22:13 UTC 2008-10-24 13:22:13 Belgian time |
|---|---|
| Magnitude | ML 0.5 |
| Epicentral coordinates | 50.477° N, 4.983° E Uncertainty ± 2.9 km |
| Depth of hypocenter | 0.8 ± 0.5 km |
| Event ID | ROB 3827 |
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
- 10
- Epicentral distance
- 12.7 – 90.6km
- 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 0.8 km. P wave: 10 measurements, root-mean-square deviation 0.98 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)10 stations | ||||||
| GESGesves | 12.7 | 144 | 11:22:15.70+1.85 s | – | – | – |
| CLAClavier | 23.6 | 106 | 11:22:17.87+4.02 s | 11:22:21.58+7.73 s | 3.71 | 4.0 |
| OT3OT3-Dion-le-Mont | 33.9 | 315 | 11:22:21.58+7.73 s | – | – | – |
| RCHRochefort | 39.8 | 154 | 11:22:20.93+7.08 s | 11:22:26.61+12.76 s | 5.68 | – |
| OT5OT5-Genappe | 41.9 | 294 | 11:22:22.89+9.04 s | – | – | – |
| STISart Tilman | 42.9 | 74 | 11:22:21.77+7.92 s | – | – | – |
| SNFSeneffe | 49.7 | 275 | 11:22:22.36+8.51 s | – | – | – |
| DOUDourbes | 50.7 | 213 | 11:22:25.25+11.40 s | – | – | – |
| MEMSMembach | 74.3 | 78 | 11:22:26.60+12.75 s | – | – | – |
| KLBKalborn | 90.6 | 117 | 11:22:29.79+15.94 s | – | – | – |
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