WAIMES (BE)
Known mine explosion6 October 2008
- Magnitude
- 1.3ML
- Depth
- 1.4km ± 2.6
- Belgian time
- 11:30:402008-10-06
- UTC
- 09:30:402008-10-06
Main parameters
| Date and time | 2008-10-06 09:30:40 UTC 2008-10-06 11:30:40 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.425° N, 6.091° E Uncertainty ± 1.3 km |
| Depth of hypocenter | 1.4 ± 2.6 km |
| Event ID | ROB 3764 |
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
- 7
- Epicentral distance
- 3.4 – 112.8km
- Mean velocity, P wave
- 5.7km/s
- Mean velocity, S wave
- 3.4km/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 1.4 km. P wave: 7 measurements, root-mean-square deviation 0.18 s. S wave: 4 measurements, root-mean-square deviation 0.14 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)7 stations | ||||||
| ROBRobertville | 3.4 | 22 | 09:30:41.30+0.43 s | 09:30:42.21+1.34 s | 0.91 | – |
| MEMSMembach | 21.3 | 344 | 09:30:44.80+3.93 s | – | – | – |
| KLBKalborn | 36.2 | 178 | 09:30:47.21+6.34 s | 09:30:51.63+10.76 s | 4.42 | 33.6 |
| STISart Tilman | 41.3 | 295 | 09:30:47.76+6.89 s | – | – | – |
| CLAClavier | 56.1 | 270 | 09:30:50.77+9.90 s | 09:30:57.24+16.37 s | 6.47 | 5.6 |
| GESGesves | 71.5 | 267 | 09:30:53.35+12.48 s | 09:31:01.81+20.94 s | 8.46 | – |
| DOUDourbes | 112.8 | 252 | 09:31:00.62+19.75 s | – | – | – |