MEMBACH (BE)
Known mine explosion30 July 2008
- Magnitude
- 1.1ML
- Depth
- 5.0km ± 7.9
- Belgian time
- 11:09:352008-07-30
- UTC
- 09:09:352008-07-30
Main parameters
| Date and time | 2008-07-30 09:09:35 UTC 2008-07-30 11:09:35 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.611° N, 6.011° E Uncertainty ± 27.2 km |
| Depth of hypocenter | 5.0 ± 7.9 km |
| Event ID | ROB 3125 |
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
- 4
- Epicentral distance
- 0.2 – 116.0km
- Mean velocity, P wave
- 9.9km/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 5.0 km. P wave: 4 measurements, root-mean-square deviation 0.99 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)4 stations | ||||||
| MEMSMembach | 0.2 | 212 | 09:09:37.68+1.88 s | 09:09:44.79+8.99 s | 7.11 | 7.8 |
| CLAClavier | 54.6 | 247 | 09:09:42.85+7.05 s | 09:09:57.80+22.00 s | 14.95 | 7.4 |
| RCHRochefort | 75.4 | 228 | 09:09:42.78+6.98 s | – | – | – |
| DOUDourbes | 116.0 | 241 | 09:09:49.40+13.60 s | 09:10:09.19+33.39 s | 19.79 | 8.1 |
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