Belgium
Known mine explosion31 October 2013
- Magnitude
- 2.0ML
- Depth
- 5.0km
- Belgian time
- 13:33:292013-10-31
- UTC
- 12:33:292013-10-31
Main parameters
| Date and time | 2013-10-31 12:33:29 UTC 2013-10-31 13:33:29 Belgian time |
|---|---|
| Magnitude | ML 2.0 |
| Epicentral coordinates | 50.761° N, 5.709° E Uncertainty ± 10.5 km |
| Depth of hypocenter | 5.0 km |
| Event ID | ROB 4993 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2013-10-31 14:31:17 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
- 7
- Epicentral distance
- 15.7 – 115.8km
- Mean velocity, P wave
- 3.7km/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 5.0 km. P wave: 7 measurements, root-mean-square deviation 4.55 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)6 stations | |||||
| LCHLa Chartreuse | 15.7 | 210 | 12:33:31.24+1.33 s | – | – |
| CLAClavier | 47.8 | 217 | 12:33:41.22+11.31 s | – | – |
| HOUHouvegnez | 49.9 | 155 | 12:33:40.83+10.92 s | – | – |
| GESGesves | 60.8 | 227 | 12:33:39.47+9.56 s | – | – |
| DOUDourbes | 108.4 | 227 | 12:33:48.97+19.06 s | – | – |
| SKQSteenkerque | 115.8 | 264 | 12:34:06.48+36.57 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 15.7 | 89 | 12:33:33.91+4.00 s | – | – |
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