QUENAST (BE)
Known mine explosion23 October 2008
- Magnitude
- –
- Depth
- 2.8km ± 4.0
- Belgian time
- 15:00:262008-10-23
- UTC
- 13:00:262008-10-23
Main parameters
| Date and time | 2008-10-23 13:00:26 UTC 2008-10-23 15:00:26 Belgian time |
|---|---|
| Magnitude | – |
| Epicentral coordinates | 50.666° N, 4.161° E Uncertainty ± 1.0 km |
| Depth of hypocenter | 2.8 ± 4.0 km |
| Event ID | ROB 3826 |
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
- 6.0 – 85.4km
- Mean velocity, P wave
- 5.4km/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 2.8 km. P wave: 8 measurements, root-mean-square deviation 1.35 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)8 stations | |||||
| SKQSteenkerque | 6.0 | 252 | 13:00:27.70+1.32 s | – | – |
| RQRRonquières | 8.0 | 146 | 13:00:27.96+1.58 s | – | – |
| SNFSeneffe | 19.3 | 153 | 13:00:29.93+3.55 s | – | – |
| OT5OT5-Genappe | 20.2 | 102 | 13:00:30.00+3.62 s | – | – |
| OTTOttignies | 28.2 | 91 | 13:00:31.37+4.99 s | – | – |
| BOUBougnies | 34.4 | 207 | 13:00:36.74+10.36 s | 13:00:40.95+14.57 s | 4.21 |
| GESGesves | 72.7 | 115 | 13:00:40.13+13.75 s | 13:00:49.40+23.02 s | 9.27 |
| CLAClavier | 85.4 | 108 | 13:00:41.79+15.41 s | 13:00:53.25+26.87 s | 11.46 |
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