BLANDAIN (BE)
Known mine explosion3 March 2014
- Magnitude
- 1.6ML
- Depth
- 11.4km ± 6.9
- Belgian time
- 13:02:112014-03-03
- UTC
- 12:02:112014-03-03
Main parameters
| Date and time | 2014-03-03 12:02:11 UTC 2014-03-03 13:02:11 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.639° N, 3.311° E Uncertainty ± 7.0 km |
| Depth of hypocenter | 11.4 ± 6.9 km |
| Event ID | ROB 5064 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2014-03-03 14:02:35 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
- 38.4 – 193.7km
- Mean velocity, P wave
- 7.4km/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 11.4 km. P wave: 6 measurements, root-mean-square deviation 0.14 s.
Stations farther than 120 km are left out of the fit: the first waves to reach them have travelled beneath the crust, through the mantle, where they propagate faster.
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 | ||||||
| LESLessines | 38.4 | 78 | 12:02:18.76+7.44 s | 12:02:22.67+11.35 s | 3.91 | – |
| SKQSteenkerque | 54.4 | 89 | 12:02:20.77+9.45 s | 12:02:26.23+14.91 s | 5.46 | 14.7 |
| BRQBracquegnies | 61.0 | 106 | 12:02:22.05+10.73 s | – | – | – |
| RQRRonquières | 64.8 | 93 | 12:02:22.34+11.02 s | – | – | – |
| SNFSeneffe | 70.4 | 101 | 12:02:23.22+11.90 s | – | – | – |
| DOUDourbes | 109.6 | 123 | 12:02:28.26+16.94 s | 12:02:43.69+32.37 s | 15.43 | – |
| GESGesves | 129.1 | 102 | 12:02:33.06+21.74 s | 12:02:49.96+38.64 s | 16.90 | 11.0 |
| CLAClavier | 143.3 | 99 | 12:02:35.27+23.95 s | – | – | – |
| RCHRochefort | 146.5 | 111 | 12:02:33.88+22.56 s | – | – | – |
| MEMSMembach | 191.0 | 90 | 12:02:42.85+31.53 s | – | – | – |
| HOUHouvegnez | 193.7 | 98 | 12:02:40.74+29.42 s | – | – | – |