PETIT-ENGHIEN (BE)
Known mine explosion30 September 2008
- Magnitude
- 0.3ML
- Depth
- –
- Belgian time
- 13:10:042008-09-30
- UTC
- 11:10:042008-09-30
Main parameters
| Date and time | 2008-09-30 11:10:04 UTC 2008-09-30 13:10:04 Belgian time |
|---|---|
| Magnitude | ML 0.3 |
| Epicentral coordinates | 50.705° N, 4.083° E Uncertainty ± 2.6 km |
| Event ID | ROB 3774 |
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
- 6.2 – 34.0km
- Mean velocity, P wave
- 5.9km/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. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 5 measurements, root-mean-square deviation 0.45 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 | 6.2 | 182 | 11:10:06.72+1.80 s | – | – | – |
| RQRRonquières | 14.9 | 137 | 11:10:07.52+2.60 s | 11:10:09.79+4.87 s | 2.27 | 3.8 |
| SNFSeneffe | 25.8 | 146 | 11:10:08.90+3.98 s | – | – | – |
| OT2OT2-Rixensart | 31.2 | 90 | 11:10:10.80+5.88 s | – | – | – |
| OT4OT4-Limal | 34.0 | 92 | 11:10:11.44+6.52 s | – | – | – |
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