Prov. Liège
Suspected mine explosion10 June 2009
- Magnitude
- 1.5ML
- Depth
- 3.7km ± 6.5
- Belgian time
- 15:01:242009-06-10
- UTC
- 13:01:242009-06-10
Main parameters
| Date and time | 2009-06-10 13:01:24 UTC 2009-06-10 15:01:24 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.590° N, 5.718° E Uncertainty ± 1.5 km |
| Depth of hypocenter | 3.7 ± 6.5 km |
| Event ID | ROB 3417 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2012-04-27 16:33:58 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
- 10.0 – 97.1km
- Mean velocity, P wave
- 5.7km/s
- Mean velocity, S wave
- 3.1km/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 3.7 km. P wave: 8 measurements, root-mean-square deviation 0.22 s. S wave: 6 measurements, root-mean-square deviation 0.31 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 | ||||||
| LCHLa Chartreuse | 10.0 | 303 | 13:01:26.04+1.15 s | 13:01:28.09+3.20 s | 2.05 | 322.0 |
| STISart Tilman | 10.9 | 266 | 13:01:26.24+1.35 s | – | – | – |
| MEMSMembach | 20.8 | 84 | 13:01:28.11+3.22 s | 13:01:31.68+6.79 s | 3.57 | – |
| EBNEben-Emael | 23.2 | 353 | 13:01:28.62+3.73 s | 13:01:32.44+7.55 s | 3.82 | 26.5 |
| ROBRobertville | 31.6 | 119 | 13:01:30.30+5.41 s | 13:01:34.48+9.59 s | 4.18 | 21.0 |
| CLAClavier | 35.1 | 237 | 13:01:30.61+5.72 s | 13:01:35.84+10.95 s | 5.23 | 25.0 |
| GESGesves | 50.2 | 243 | 13:01:33.68+8.79 s | 13:01:40.19+15.30 s | 6.51 | 8.1 |
| DOUDourbes | 97.1 | 236 | 13:01:41.59+16.70 s | – | – | – |