THON (BE)
Known mine explosion11 August 2014
- Magnitude
- 1.4ML
- Depth
- 1.0km ± 7.3
- Belgian time
- 13:50:172014-08-11
- UTC
- 11:50:172014-08-11
Main parameters
| Date and time | 2014-08-11 11:50:17 UTC 2014-08-11 13:50:17 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.471° N, 5.012° E Uncertainty ± 3.0 km |
| Depth of hypocenter | 1.0 ± 7.3 km |
| Event ID | ROB 5174 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2014-08-12 07:15:13 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
- 9
- Epicentral distance
- 21.4 – 72.4km
- Mean velocity, P wave
- 5.7km/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 1.0 km. P wave: 9 measurements, root-mean-square deviation 0.60 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)9 stations | ||||||
| CLAClavier | 21.4 | 106 | 11:50:21.44+4.01 s | 11:50:23.90+6.47 s | 2.46 | 23.0 |
| MRDMaredsous | 25.6 | 223 | 11:50:21.80+4.37 s | – | – | – |
| RCHRochefort | 38.4 | 156 | 11:50:24.38+6.95 s | – | – | – |
| STISart Tilman | 41.1 | 72 | 11:50:25.12+7.69 s | – | – | – |
| LCHLa Chartreuse | 45.6 | 66 | 11:50:24.87+7.44 s | 11:50:30.88+13.45 s | 6.01 | 21.9 |
| DOUDourbes | 51.4 | 216 | 11:50:26.64+9.21 s | – | – | – |
| SNFSeneffe | 51.8 | 275 | 11:50:25.01+7.58 s | – | – | – |
| HOUHouvegnez | 71.8 | 100 | 11:50:30.17+12.74 s | 11:50:37.40+19.97 s | 7.23 | – |
| MEMHMembach | 72.4 | 77 | 11:50:30.63+13.20 s | – | – | – |
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