SPRIMONT (BE)
Known mine explosion20 May 2014
- Magnitude
- 1.2ML
- Depth
- 9.8km ± 11.6
- Belgian time
- 14:03:252014-05-20
- UTC
- 12:03:252014-05-20
Main parameters
| Date and time | 2014-05-20 12:03:25 UTC 2014-05-20 14:03:25 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.513° N, 5.665° E Uncertainty ± 4.3 km |
| Depth of hypocenter | 9.8 ± 11.6 km |
| Event ID | ROB 5124 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2014-05-20 14:27:59 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
- 10.6 – 89.3km
- Mean velocity, P wave
- 5.8km/s
- Mean velocity, S wave
- 3.2km/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 9.8 km. P wave: 8 measurements, root-mean-square deviation 0.76 s. S wave: 4 measurements, root-mean-square deviation 0.70 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 | ||||||
| STISart Tilman | 10.6 | 318 | 12:03:27.77+1.80 s | – | – | – |
| MEMSMembach | 26.7 | 66 | 12:03:30.16+4.19 s | 12:03:35.57+9.60 s | 5.41 | – |
| CLAClavier | 27.8 | 248 | 12:03:29.79+3.82 s | – | – | – |
| HOUHouvegnez | 30.0 | 126 | 12:03:31.39+5.42 s | 12:03:35.38+9.41 s | 3.99 | – |
| GESGesves | 43.4 | 251 | 12:03:32.80+6.83 s | – | – | – |
| RCHRochefort | 50.6 | 218 | 12:03:36.16+10.19 s | – | – | – |
| KLBKalborn | 55.8 | 145 | 12:03:34.71+8.74 s | 12:03:42.38+16.41 s | 7.67 | – |
| DOUDourbes | 89.3 | 239 | 12:03:41.10+15.13 s | 12:03:53.34+27.37 s | 12.24 | 5.0 |