QUENAST (BE)
Known mine explosion21 October 2008
- Magnitude
- –
- Depth
- 0.3km ± 2.1
- Belgian time
- 15:01:322008-10-21
- UTC
- 13:01:322008-10-21
Main parameters
| Date and time | 2008-10-21 13:01:32 UTC 2008-10-21 15:01:32 Belgian time |
|---|---|
| Magnitude | – |
| Epicentral coordinates | 50.664° N, 4.172° E Uncertainty ± 1.2 km |
| Depth of hypocenter | 0.3 ± 2.1 km |
| Event ID | ROB 3244 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2009-05-30 18:17:43 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
- 9
- Epicentral distance
- 6.7 – 43.1km
- 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 0.3 km. P wave: 9 measurements, root-mean-square deviation 0.13 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)9 stations | |||||
| SKQSteenkerque | 6.7 | 256 | 13:01:33.84+1.30 s | – | – |
| RQRRonquières | 7.5 | 150 | 13:01:34.06+1.52 s | – | – |
| SNFSeneffe | 18.8 | 155 | 13:01:36.19+3.65 s | – | – |
| OT2OT2-Rixensart | 25.3 | 80 | 13:01:37.28+4.74 s | – | – |
| OTTOttignies | 27.4 | 91 | 13:01:37.47+4.93 s | – | – |
| OT4OT4-Limal | 27.9 | 83 | 13:01:37.66+5.12 s | – | – |
| OT1OT1-Mellery | 29.3 | 105 | 13:01:37.69+5.15 s | – | – |
| OT3OT3-Dion-le-Mont | 33.5 | 84 | 13:01:38.57+6.03 s | – | – |
| GRZGrand Leez | 43.1 | 102 | 13:01:39.91+7.37 s | – | – |
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