ROCHERATH (BE)
Known mine explosion2 March 2011
- Magnitude
- 1.9ML
- Depth
- 1.0km ± 4.0
- Belgian time
- 13:54:562011-03-02
- UTC
- 12:54:562011-03-02
Main parameters
| Date and time | 2011-03-02 12:54:56 UTC 2011-03-02 13:54:56 Belgian time |
|---|---|
| Magnitude | ML 1.9 |
| Epicentral coordinates | 50.611° N, 6.011° E Uncertainty ± 5.7 km |
| Depth of hypocenter | 1.0 ± 4.0 km |
| Event ID | ROB 4270 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2011-03-04 07:41:44 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
- 0.2 – 116.0km
- Mean velocity, S wave
- 3.5km/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 1.0 km. S wave: 7 measurements, root-mean-square deviation 0.70 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 | ||||||
| MEMSMembach | 0.2 | 212 | 12:54:57.01+0.61 s | 12:54:58.24+1.84 s | 1.23 | 172.4 |
| LCHLa Chartreuse | 29.4 | 276 | – | 12:55:05.93+9.53 s | – | – |
| EBNEben-Emael | 31.4 | 311 | – | 12:55:05.19+8.79 s | – | – |
| STISart Tilman | 31.8 | 265 | – | 12:55:06.52+10.12 s | – | – |
| CLAClavier | 54.6 | 247 | 12:55:05.02+8.62 s | 12:55:11.53+15.13 s | 6.51 | – |
| GESGesves | 70.2 | 249 | 12:55:04.97+8.57 s | 12:55:16.88+20.48 s | 11.91 | – |
| DOUDourbes | 116.0 | 241 | – | 12:55:30.67+34.27 s | – | – |
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