NAMECHE (BE)
Known mine explosion30 September 2008
- Magnitude
- –
- Depth
- 1.0km ± 0.5
- Belgian time
- 13:39:582008-09-30
- UTC
- 11:39:582008-09-30
Main parameters
| Date and time | 2008-09-30 11:39:58 UTC 2008-09-30 13:39:58 Belgian time |
|---|---|
| Magnitude | – |
| Epicentral coordinates | 50.486° N, 4.996° E Uncertainty ± 1.7 km |
| Depth of hypocenter | 1.0 ± 0.5 km |
| Event ID | ROB 3776 |
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
- 8
- Epicentral distance
- 12.9 – 52.0km
- Mean velocity, P wave
- 6.3km/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 1.0 km. P wave: 8 measurements, root-mean-square deviation 0.47 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)8 stations | |||||
| GESGesves | 12.9 | 150 | 11:40:00.85+2.77 s | – | – |
| CLAClavier | 23.0 | 109 | 11:40:02.04+3.96 s | – | – |
| OT1OT1-Mellery | 32.4 | 293 | 11:40:03.79+5.71 s | – | – |
| OT3OT3-Dion-le-Mont | 33.9 | 313 | 11:40:02.66+4.58 s | – | – |
| OTTOttignies | 36.4 | 302 | 11:40:04.56+6.48 s | – | – |
| RCHRochefort | 40.3 | 156 | 11:40:04.99+6.91 s | – | – |
| OT5OT5-Genappe | 42.4 | 292 | 11:40:05.47+7.39 s | – | – |
| DOUDourbes | 52.0 | 213 | 11:40:06.87+8.79 s | – | – |
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