PETIT-ENGHIEN (BE)
Known mine explosion1 October 2013
- Magnitude
- 0.9ML
- Depth
- 1.4km ± 2.6
- Belgian time
- 14:12:102013-10-01
- UTC
- 12:12:102013-10-01
Main parameters
| Date and time | 2013-10-01 12:12:10 UTC 2013-10-01 14:12:10 Belgian time |
|---|---|
| Magnitude | ML 0.9 |
| Epicentral coordinates | 50.683° N, 4.100° E Uncertainty ± 1.4 km |
| Depth of hypocenter | 1.4 ± 2.6 km |
| Event ID | ROB 4977 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2013-10-02 09:28:07 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
- 4.0 – 23.1km
- Mean velocity, P wave
- 5.3km/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 1.4 km. P wave: 5 measurements, root-mean-square deviation 0.10 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 | 4.0 | 201 | 12:12:10.92+0.75 s | 12:12:11.58+1.41 s | 0.66 | 21.4 |
| RQRRonquières | 12.3 | 134 | 12:12:12.37+2.20 s | – | – | – |
| LESLessines | 18.4 | 280 | 12:12:13.56+3.39 s | – | – | – |
| UCCBUccle | 22.3 | 55 | 12:12:14.16+3.99 s | – | – | – |
| SNFSeneffe | 23.1 | 146 | 12:12:14.62+4.45 s | – | – | – |
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