CHANLY (BE)
Known mine explosion8 August 2008
- Magnitude
- 1.8ML
- Depth
- 1.4km ± 4.0
- Belgian time
- 16:39:542008-08-08
- UTC
- 14:39:542008-08-08
Main parameters
| Date and time | 2008-08-08 14:39:54 UTC 2008-08-08 16:39:54 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.086° N, 5.156° E Uncertainty ± 1.2 km |
| Depth of hypocenter | 1.4 ± 4.0 km |
| Event ID | ROB 3136 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2009-08-19 14:48:43 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
- 9.2 – 85.6km
- Mean velocity, P wave
- 5.8km/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 0.22 s. S wave: 5 measurements, root-mean-square deviation 0.38 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 | ||||||
| RCHRochefort | 9.2 | 34 | 14:39:55.76+1.50 s | 14:39:56.73+2.47 s | 0.97 | – |
| GESGesves | 33.6 | 352 | 14:39:59.58+5.32 s | 14:40:04.66+10.40 s | 5.08 | – |
| CLAClavier | 38.5 | 16 | 14:40:00.95+6.69 s | 14:40:05.99+11.73 s | 5.04 | 44.3 |
| DOUDourbes | 40.1 | 272 | 14:40:01.13+6.87 s | 14:40:06.35+12.09 s | 5.22 | 43.5 |
| KLBKalborn | 68.2 | 88 | 14:40:05.88+11.62 s | – | – | – |
| MEMSMembach | 84.1 | 46 | 14:40:08.91+14.65 s | – | – | – |
| WLFWalferdange | 85.6 | 123 | 14:40:09.29+15.03 s | 14:40:19.09+24.83 s | 9.80 | 20.6 |