LESSINES (BE)
Known mine explosion13 February 2014
- Magnitude
- 0.9ML
- Depth
- 1.2km ± 7.4
- Belgian time
- 14:45:072014-02-13
- UTC
- 13:45:072014-02-13
Main parameters
| Date and time | 2014-02-13 13:45:07 UTC 2014-02-13 14:45:07 Belgian time |
|---|---|
| Magnitude | ML 0.9 |
| Epicentral coordinates | 50.713° N, 3.843° E Uncertainty ± 14.8 km |
| Depth of hypocenter | 1.2 ± 7.4 km |
| Event ID | ROB 5050 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2014-02-14 11:59:51 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
- 6
- Epicentral distance
- 0.2 – 95.4km
- 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 1.2 km. P wave: 6 measurements, root-mean-square deviation 0.39 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)6 stations | ||||||
| LESLessines | 0.2 | 175 | 13:45:07.16+0.01 s | – | – | – |
| SKQSteenkerque | 18.2 | 113 | 13:45:09.94+2.79 s | 13:45:12.42+5.27 s | 2.48 | 12.2 |
| RQRRonquières | 29.5 | 114 | 13:45:11.57+4.42 s | – | – | – |
| BRQBracquegnies | 33.1 | 141 | 13:45:12.66+5.51 s | – | – | – |
| DOUDourbes | 87.1 | 142 | 13:45:22.50+15.35 s | – | – | – |
| GESGesves | 95.4 | 112 | 13:45:25.04+17.89 s | 13:45:36.24+29.09 s | 11.20 | – |
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