ROUVREUX (BE)
Known mine explosion3 May 2012
- Magnitude
- 1.8ML
- Depth
- –
- Belgian time
- 14:01:042012-05-03
- UTC
- 12:01:042012-05-03
Main parameters
| Date and time | 2012-05-03 12:01:04 UTC 2012-05-03 14:01:04 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.498° N, 5.623° E Uncertainty ± 4.6 km |
| Event ID | ROB 4725 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2012-05-03 15:14:33 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
- 6
- Epicentral distance
- 10.4 – 85.9km
- Mean velocity, P wave
- 5.9km/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. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 6 measurements, root-mean-square deviation 0.27 s. S wave: 5 measurements, root-mean-square deviation 0.55 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 | nm | |
|---|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)6 stations | ||||||
| STISart Tilman | 10.4 | 336 | 12:01:05.99+1.99 s | – | – | – |
| LCHLa Chartreuse | 15.8 | 354 | 12:01:07.22+3.22 s | 12:01:09.95+5.95 s | 2.73 | – |
| CLAClavier | 24.4 | 249 | 12:01:07.82+3.82 s | 12:01:10.99+6.99 s | 3.17 | – |
| MEMSMembach | 30.1 | 66 | 12:01:09.14+5.14 s | 12:01:13.70+9.70 s | 4.56 | 61.3 |
| GESGesves | 40.1 | 252 | 12:01:10.82+6.82 s | 12:01:16.43+12.43 s | 5.61 | – |
| DOUDourbes | 85.9 | 239 | 12:01:18.88+14.88 s | 12:01:31.30+27.30 s | 12.42 | – |