BEEZ (BE)
Known mine explosion23 October 2008
- Magnitude
- 1.3ML
- Depth
- 1.1km ± 7.7
- Belgian time
- 13:52:312008-10-23
- UTC
- 11:52:312008-10-23
Main parameters
| Date and time | 2008-10-23 11:52:31 UTC 2008-10-23 13:52:31 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.480° N, 4.931° E Uncertainty ± 4.1 km |
| Depth of hypocenter | 1.1 ± 7.7 km |
| Event ID | ROB 3825 |
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
- 7
- Epicentral distance
- 15.3 – 63.2km
- Mean velocity, P wave
- 5.6km/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 1.1 km. P wave: 7 measurements, root-mean-square deviation 1.18 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)7 stations | ||||||
| GESGesves | 15.3 | 134 | 11:52:33.47+2.44 s | 11:52:35.66+4.63 s | 2.19 | 35.6 |
| CLAClavier | 27.2 | 104 | 11:52:35.90+4.87 s | 11:52:39.35+8.32 s | 3.45 | 16.5 |
| RCHRochefort | 41.9 | 150 | 11:52:39.79+8.76 s | – | – | – |
| SNFSeneffe | 46.1 | 274 | 11:52:39.51+8.48 s | – | – | – |
| DOUDourbes | 49.1 | 209 | 11:52:42.33+11.30 s | 11:52:48.04+17.01 s | 5.71 | – |
| RQRRonquières | 52.0 | 286 | 11:52:39.11+8.08 s | – | – | – |
| SKQSteenkerque | 63.2 | 288 | 11:52:41.56+10.53 s | – | – | – |
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