MARNEFFE (BE)
Known mine explosion24 September 2008
- Magnitude
- 0.9ML
- Depth
- 1.1km ± 7.2
- Belgian time
- 14:58:542008-09-24
- UTC
- 12:58:542008-09-24
Main parameters
| Date and time | 2008-09-24 12:58:54 UTC 2008-09-24 14:58:54 Belgian time |
|---|---|
| Magnitude | ML 0.9 |
| Epicentral coordinates | 50.578° N, 5.163° E Uncertainty ± 2.6 km |
| Depth of hypocenter | 1.1 ± 7.2 km |
| Event ID | ROB 3796 |
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
- 20.2 – 85.8km
- 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 1.1 km. P wave: 8 measurements, root-mean-square deviation 0.57 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)8 stations | ||||||
| CLAClavier | 20.2 | 151 | 12:58:57.66+3.41 s | 12:59:00.34+6.09 s | 2.68 | 9.9 |
| GESGesves | 22.1 | 194 | 12:58:58.11+3.86 s | 12:59:01.05+6.80 s | 2.94 | – |
| GRZGrand Leez | 28.1 | 270 | 12:58:58.52+4.27 s | – | – | – |
| OT1OT1-Mellery | 41.9 | 273 | 12:59:01.58+7.33 s | – | – | – |
| RCHRochefort | 47.2 | 174 | 12:59:01.22+6.97 s | – | – | – |
| MEMSMembach | 60.0 | 86 | 12:59:04.24+9.99 s | – | – | – |
| DOUDourbes | 67.2 | 217 | 12:59:04.59+10.34 s | – | – | – |
| KLBKalborn | 85.8 | 128 | 12:59:09.48+15.23 s | – | – | – |
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