JEMELLE (BE)
Known mine explosion22 August 2008
- Magnitude
- 1.5ML
- Depth
- 1.3km ± 2.5
- Belgian time
- 11:37:012008-08-22
- UTC
- 09:37:012008-08-22
Main parameters
| Date and time | 2008-08-22 09:37:01 UTC 2008-08-22 11:37:01 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.176° N, 5.258° E Uncertainty ± 1.3 km |
| Depth of hypocenter | 1.3 ± 2.5 km |
| Event ID | ROB 3146 |
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
- 3.2 – 61.4km
- Mean velocity, P wave
- 5.9km/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 1.3 km. P wave: 5 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)5 stations | ||||||
| RCHRochefort | 3.2 | 224 | 09:37:01.89+0.57 s | – | – | – |
| GESGesves | 26.3 | 332 | 09:37:05.98+4.66 s | 09:37:08.73+7.41 s | 2.75 | 12.2 |
| CLAClavier | 27.2 | 7 | 09:37:06.15+4.83 s | 09:37:09.84+8.52 s | 3.69 | 15.8 |
| DOUDourbes | 48.3 | 259 | 09:37:09.63+8.31 s | 09:37:15.80+14.48 s | 6.17 | 77.0 |
| KLBKalborn | 61.4 | 98 | 09:37:11.77+10.45 s | – | – | – |
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