FRAIPONT (BE)
Known mine explosion16 March 2012
- Magnitude
- –
- Depth
- –
- Belgian time
- 14:24:132012-03-16
- UTC
- 13:24:132012-03-16
Main parameters
| Date and time | 2012-03-16 13:24:13 UTC 2012-03-16 14:24:13 Belgian time |
|---|---|
| Magnitude | – |
| Epicentral coordinates | 50.563° N, 5.721° E Uncertainty ± 2.4 km |
| Event ID | ROB 4689 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2012-04-27 16:36:39 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
- 12.2 – 57.4km
- Mean velocity, P wave
- 5.5km/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. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 5 measurements, root-mean-square deviation 0.32 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 | |
|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)5 stations | |||||
| LCHLa Chartreuse | 12.2 | 315 | 13:24:15.14+1.74 s | 13:24:17.01+3.61 s | 1.87 |
| MEMSMembach | 21.1 | 76 | 13:24:16.80+3.40 s | 13:24:20.25+6.85 s | 3.45 |
| EBNEben-Emael | 26.3 | 353 | 13:24:17.91+4.51 s | 13:24:22.48+9.08 s | 4.57 |
| CLAClavier | 33.8 | 242 | 13:24:19.90+6.50 s | – | – |
| RCHRochefort | 57.4 | 218 | 13:24:23.36+9.96 s | – | – |
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