PESSOUX (BE)
Known mine explosion12 August 2008
- Magnitude
- 1.8ML
- Depth
- –
- Belgian time
- 13:45:592008-08-12
- UTC
- 11:45:592008-08-12
Main parameters
| Date and time | 2008-08-12 11:45:59 UTC 2008-08-12 13:45:59 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.116° N, 5.248° E Uncertainty ± 6.2 km |
| Event ID | ROB 3144 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2010-02-26 11:46:45 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
- 5
- Epicentral distance
- 32.0 – 77.1km
- Mean velocity, P wave
- 5.3km/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. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 5 measurements, root-mean-square deviation 0.41 s. S wave: 5 measurements, root-mean-square deviation 1.35 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)5 stations | ||||||
| GESGesves | 32.0 | 339 | 11:46:07.09+7.27 s | 11:46:10.67+10.85 s | 3.58 | 77.0 |
| CLAClavier | 33.9 | 7 | 11:46:07.43+7.61 s | 11:46:10.74+10.92 s | 3.31 | 111.0 |
| DOUDourbes | 46.8 | 267 | 11:46:10.93+11.11 s | 11:46:17.06+17.24 s | 6.13 | 25.7 |
| KLBKalborn | 61.6 | 91 | 11:46:13.27+13.45 s | 11:46:21.14+21.32 s | 7.87 | 28.7 |
| MEMSMembach | 77.1 | 44 | 11:46:16.22+16.40 s | 11:46:22.43+22.61 s | 6.21 | 14.9 |