PETIT-ENGHIEN (BE)
Known mine explosion4 September 2008
- Magnitude
- –
- Depth
- 1.2km ± 7.4
- Belgian time
- 15:26:022008-09-04
- UTC
- 13:26:022008-09-04
Main parameters
| Date and time | 2008-09-04 13:26:02 UTC 2008-09-04 15:26:02 Belgian time |
|---|---|
| Magnitude | – |
| Epicentral coordinates | 50.684° N, 4.110° E Uncertainty ± 4.8 km |
| Depth of hypocenter | 1.2 ± 7.4 km |
| Event ID | ROB 3695 |
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
- 4
- Epicentral distance
- 4.4 – 24.2km
- Mean velocity, P wave
- 5.5km/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 1.2 km. P wave: 4 measurements, root-mean-square deviation 0.17 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)4 stations | |||||
| SKQSteenkerque | 4.4 | 209 | 13:26:03.36+0.91 s | – | – |
| RQRRonquières | 11.8 | 137 | 13:26:04.61+2.16 s | 13:26:06.06+3.61 s | 1.45 |
| SNFSeneffe | 22.8 | 147 | 13:26:06.91+4.46 s | – | – |
| OT5OT5-Genappe | 24.2 | 105 | 13:26:06.70+4.25 s | – | – |
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