FRANC-WARET (BE)
Known mine explosion16 July 2008
- Magnitude
- 1.5ML
- Depth
- 0.9km ± 5.0
- Belgian time
- 13:52:152008-07-16
- UTC
- 11:52:152008-07-16
Main parameters
| Date and time | 2008-07-16 11:52:15 UTC 2008-07-16 13:52:15 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.510° N, 4.978° E Uncertainty ± 4.3 km |
| Depth of hypocenter | 0.9 ± 5.0 km |
| Event ID | ROB 3160 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2009-05-30 18:17:43 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
- 6
- Epicentral distance
- 10.2 – 92.6km
- Mean velocity, P wave
- 5.5km/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 0.9 km. P wave: 6 measurements, root-mean-square deviation 0.09 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 | ||||||
| CTHCouthuin | 10.2 | 77 | 11:52:17.49+1.80 s | 11:52:18.84+3.15 s | 1.35 | 97.0 |
| GESGesves | 15.9 | 151 | 11:52:18.27+2.58 s | – | – | – |
| CLAClavier | 25.1 | 114 | 11:52:20.20+4.51 s | – | – | – |
| RCHRochefort | 43.3 | 156 | 11:52:23.35+7.66 s | – | – | – |
| DOUDourbes | 53.6 | 211 | 11:52:25.30+9.61 s | 11:52:31.25+15.56 s | 5.95 | 10.8 |
| KLBKalborn | 92.6 | 119 | 11:52:32.31+16.62 s | – | – | – |
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