QUENAST (BE)
Known mine explosion8 October 2008
- Magnitude
- 1.0ML
- Depth
- 7.8km ± 8.3
- Belgian time
- 16:12:332008-10-08
- UTC
- 14:12:332008-10-08
Main parameters
| Date and time | 2008-10-08 14:12:33 UTC 2008-10-08 16:12:33 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.653° N, 4.157° E Uncertainty ± 16.3 km |
| Depth of hypocenter | 7.8 ± 8.3 km |
| Event ID | ROB 3778 |
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
- 5
- Epicentral distance
- 5.5 – 69.4km
- Mean velocity, P wave
- 5.2km/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 7.8 km. P wave: 5 measurements, root-mean-square deviation 1.25 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)5 stations | ||||||
| SKQSteenkerque | 5.5 | 265 | 14:12:34.57+1.44 s | 14:12:36.00+2.87 s | 1.43 | 26.1 |
| RQRRonquières | 7.1 | 138 | 14:12:35.23+2.10 s | 14:12:37.06+3.93 s | 1.83 | – |
| SNFSeneffe | 18.2 | 150 | 14:12:36.15+3.02 s | – | – | – |
| GRZGrand Leez | 43.9 | 101 | 14:12:44.11+10.98 s | – | – | – |
| DOUDourbes | 69.4 | 153 | 14:12:45.43+12.30 s | – | – | – |
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