WAIMES (BE)
Known mine explosion22 August 2013
- Magnitude
- 2.2ML
- Depth
- 7.4km ± 2.7
- Belgian time
- 14:10:202013-08-22
- UTC
- 12:10:202013-08-22
Main parameters
| Date and time | 2013-08-22 12:10:20 UTC 2013-08-22 14:10:20 Belgian time |
|---|---|
| Magnitude | ML 2.2 |
| Epicentral coordinates | 50.403° N, 6.085° E Uncertainty ± 1.9 km |
| Depth of hypocenter | 7.4 ± 2.7 km |
| Event ID | ROB 4939 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2013-08-22 14:34:54 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
- 8
- Epicentral distance
- 7.9 – 94.4km
- Mean velocity, P wave
- 6.4km/s
- Mean velocity, S wave
- 3.5km/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 7.4 km. P wave: 8 measurements, root-mean-square deviation 0.51 s. S wave: 5 measurements, root-mean-square deviation 0.29 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)8 stations | ||||||
| HOUHouvegnez | 7.9 | 226 | 12:10:21.94+1.65 s | 12:10:23.39+3.10 s | 1.45 | – |
| MEMSMembach | 23.5 | 347 | 12:10:24.02+3.73 s | 12:10:27.34+7.05 s | 3.32 | 172.9 |
| KLBKalborn | 33.7 | 177 | 12:10:26.58+6.29 s | 12:10:30.89+10.60 s | 4.31 | – |
| STISart Tilman | 42.0 | 299 | 12:10:27.78+7.49 s | – | – | – |
| LCHLa Chartreuse | 43.3 | 307 | 12:10:28.03+7.74 s | 12:10:33.40+13.11 s | 5.37 | – |
| CLAClavier | 55.7 | 272 | 12:10:30.03+9.74 s | 12:10:36.74+16.45 s | 6.71 | – |
| WLFWalferdange | 82.3 | 177 | 12:10:33.34+13.05 s | – | – | – |
| MRDMaredsous | 94.4 | 264 | 12:10:34.69+14.40 s | – | – | – |