MARCHOVELETTE (BE)
Known mine explosion13 February 2014
- Magnitude
- 1.2ML
- Depth
- 1.2km ± 4.9
- Belgian time
- 14:20:552014-02-13
- UTC
- 13:20:552014-02-13
Main parameters
| Date and time | 2014-02-13 13:20:55 UTC 2014-02-13 14:20:55 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.529° N, 4.955° E Uncertainty ± 2.0 km |
| Depth of hypocenter | 1.2 ± 4.9 km |
| Event ID | ROB 5048 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2014-02-14 11:13:42 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
- 11
- Epicentral distance
- 18.6 – 95.1km
- Mean velocity, P wave
- 5.6km/s
- Mean velocity, S wave
- 3.3km/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 1.2 km. P wave: 11 measurements, root-mean-square deviation 0.36 s. S wave: 5 measurements, root-mean-square deviation 0.51 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)11 stations | ||||||
| GESGesves | 18.6 | 150 | 13:20:58.52+2.67 s | – | – | – |
| CLAClavier | 27.5 | 116 | 13:21:00.50+4.65 s | 13:21:02.84+6.99 s | 2.34 | 11.5 |
| MRDMaredsous | 28.5 | 208 | 13:21:00.95+5.10 s | 13:21:04.49+8.64 s | 3.54 | 21.8 |
| STISart Tilman | 43.6 | 82 | 13:21:03.92+8.07 s | – | – | – |
| RCHRochefort | 45.9 | 155 | 13:21:03.52+7.67 s | 13:21:09.86+14.01 s | 6.34 | – |
| LCHLa Chartreuse | 47.3 | 75 | 13:21:03.38+7.53 s | 13:21:10.00+14.15 s | 6.62 | – |
| DOUDourbes | 54.6 | 208 | 13:21:05.53+9.68 s | – | – | – |
| SKQSteenkerque | 63.4 | 283 | 13:21:06.39+10.54 s | – | – | – |
| MEMHMembach | 75.3 | 83 | 13:21:08.56+12.71 s | 13:21:18.40+22.55 s | 9.84 | – |
| HOUHouvegnez | 77.1 | 104 | 13:21:09.53+13.68 s | – | – | – |
| KLBKalborn | 95.1 | 120 | 13:21:12.40+16.55 s | – | – | – |