FRANC-WARET (BE)
Known mine explosion1 July 2008
- Magnitude
- 1.4ML
- Depth
- 0.5km ± 16.2
- Belgian time
- 13:50:522008-07-01
- UTC
- 11:50:522008-07-01
Main parameters
| Date and time | 2008-07-01 11:50:52 UTC 2008-07-01 13:50:52 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.532° N, 4.966° E Uncertainty ± 7.3 km |
| Depth of hypocenter | 0.5 ± 16.2 km |
| Event ID | ROB 3154 |
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
- 5
- Epicentral distance
- 18.5 – 55.4km
- Mean velocity, P wave
- 5.3km/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 0.5 km. P wave: 5 measurements, root-mean-square deviation 0.13 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 | 18.5 | 152 | 11:50:55.74+2.98 s | – | – | – |
| CLAClavier | 27.0 | 118 | 11:50:57.67+4.91 s | – | – | – |
| MRDMaredsous | 29.2 | 209 | 11:50:57.78+5.02 s | 11:51:01.23+8.47 s | 3.45 | 21.7 |
| RCHRochefort | 45.9 | 156 | 11:51:00.92+8.16 s | 11:51:06.44+13.68 s | 5.52 | – |
| DOUDourbes | 55.4 | 209 | 11:51:02.81+10.05 s | – | – | – |
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