MONT-SAINT-AUBERT (BE)
Known mine explosion23 October 2014
- Magnitude
- 2.1ML
- Depth
- 10.1km ± 6.3
- Belgian time
- 13:00:382014-10-23
- UTC
- 11:00:382014-10-23
Main parameters
| Date and time | 2014-10-23 11:00:38 UTC 2014-10-23 13:00:38 Belgian time |
|---|---|
| Magnitude | ML 2.1 |
| Epicentral coordinates | 50.655° N, 3.427° E Uncertainty ± 5.1 km |
| Depth of hypocenter | 10.1 ± 6.3 km |
| Event ID | ROB 5209 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2014-10-23 15:58:14 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
- 9
- Epicentral distance
- 30.0 – 135.5km
- Mean velocity, P wave
- 6.0km/s
- Mean velocity, S wave
- 3.4km/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 10.1 km. P wave: 7 measurements, root-mean-square deviation 0.31 s. S wave: 4 measurements, root-mean-square deviation 0.73 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)9 stations | ||||||
| LESLessines | 30.0 | 78 | 11:00:44.12+5.79 s | 11:00:47.99+9.66 s | 3.87 | – |
| SKQSteenkerque | 46.2 | 91 | 11:00:46.28+7.95 s | – | – | – |
| BOUBougnies | 47.2 | 129 | 11:00:46.56+8.23 s | – | – | – |
| BRQBracquegnies | 53.8 | 111 | 11:00:47.28+8.95 s | – | – | – |
| SNFSeneffe | 62.8 | 104 | 11:00:48.58+10.25 s | 11:00:55.69+17.36 s | 7.11 | – |
| MRDMaredsous | 103.0 | 112 | 11:00:55.24+16.91 s | 11:01:09.19+30.86 s | 13.95 | – |
| DOUDourbes | 103.8 | 126 | 11:00:56.08+17.75 s | 11:01:08.56+30.23 s | 12.48 | 35.7 |
| GESGesves | 121.5 | 104 | 11:00:58.63+20.30 s | 11:01:13.31+34.98 s | 14.68 | – |
| CLAClavier | 135.5 | 100 | 11:00:58.99+20.66 s | – | – | – |