HEYD (BE)
Known mine explosion3 October 2008
- Magnitude
- 1.8ML
- Depth
- 4.2km ± 19.7
- Belgian time
- 10:54:242008-10-03
- UTC
- 08:54:242008-10-03
Main parameters
| Date and time | 2008-10-03 08:54:24 UTC 2008-10-03 10:54:24 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.346° N, 5.569° E Uncertainty ± 3.5 km |
| Depth of hypocenter | 4.2 ± 19.7 km |
| Event ID | ROB 3759 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2012-04-27 16:33:58 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
- 20.7 – 47.3km
- Mean velocity, P wave
- 5.2km/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 4.2 km. P wave: 4 measurements, root-mean-square deviation 0.07 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 | ||||||
| CLAClavier | 20.7 | 293 | 08:54:27.89+3.16 s | 08:54:30.94+6.21 s | 3.05 | – |
| GESGesves | 34.6 | 277 | 08:54:30.66+5.93 s | 08:54:35.45+10.72 s | 4.79 | 23.5 |
| MEMSMembach | 42.8 | 47 | 08:54:32.20+7.47 s | – | – | – |
| KLBKalborn | 47.3 | 125 | 08:54:32.90+8.17 s | – | – | – |
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