FLOREE (BE)
Known mine explosion21 August 2008
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 13:56:042008-08-21
- UTC
- 11:56:042008-08-21
Main parameters
| Date and time | 2008-08-21 11:56:04 UTC 2008-08-21 13:56:04 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.494° N, 4.936° E Uncertainty ± 3.9 km |
| Event ID | ROB 3147 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2010-02-26 11:48:41 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
- 16.2 – 94.4km
- Mean velocity, P wave
- 5.6km/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: 6 measurements, root-mean-square deviation 0.65 s. S wave: 4 measurements, root-mean-square deviation 0.63 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 | ||||||
| GESGesves | 16.2 | 138 | 11:56:08.52+4.35 s | 11:56:09.92+5.75 s | 1.40 | – |
| CLAClavier | 27.3 | 108 | 11:56:10.61+6.44 s | 11:56:13.23+9.06 s | 2.62 | 68.0 |
| STISart Tilman | 45.6 | 77 | 11:56:14.84+10.67 s | 11:56:20.09+15.92 s | 5.25 | 13.7 |
| DOUDourbes | 50.6 | 209 | 11:56:15.99+11.82 s | 11:56:20.50+16.33 s | 4.51 | – |
| MEMSMembach | 77.2 | 80 | 11:56:19.58+15.41 s | – | – | – |
| KLBKalborn | 94.4 | 117 | 11:56:22.01+17.84 s | – | – | – |