SAMBREVILLE (BE)
Known mine explosion17 September 2015
- Magnitude
- 1.0ML
- Depth
- 6.4km ± 9.3
- Belgian time
- 14:02:042015-09-17
- UTC
- 12:02:042015-09-17
Main parameters
| Date and time | 2015-09-17 12:02:04 UTC 2015-09-17 14:02:04 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.416° N, 4.599° E Uncertainty ± 2.8 km |
| Depth of hypocenter | 6.4 ± 9.3 km |
| Event ID | ROB 5407 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2015-09-17 15:06:22 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
- 8
- Epicentral distance
- 17.4 – 102.4km
- Mean velocity, P wave
- 5.7km/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 6.4 km. P wave: 7 measurements, root-mean-square deviation 0.44 s. S wave: 6 measurements, root-mean-square deviation 1.04 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 | ||||||
| MRDMaredsous | 17.4 | 136 | 12:02:06.46+2.46 s | 12:02:08.27+4.27 s | 1.81 | – |
| SNFSeneffe | 24.8 | 296 | 12:02:08.83+4.83 s | 12:02:12.77+8.77 s | 3.94 | – |
| GESGesves | 34.8 | 95 | – | 12:02:14.36+10.36 s | – | – |
| DOUDourbes | 35.7 | 180 | 12:02:10.38+6.38 s | 12:02:15.89+11.89 s | 5.51 | 10.4 |
| SKQSteenkerque | 45.1 | 305 | 12:02:11.88+7.88 s | 12:02:16.01+12.01 s | 4.13 | – |
| CLAClavier | 50.0 | 89 | 12:02:11.98+7.98 s | 12:02:18.77+14.77 s | 6.79 | 3.9 |
| MEMHMembach | 102.4 | 77 | 12:02:22.29+18.29 s | – | – | – |
| Dutch seismic network (KNMI)1 station | ||||||
| HGNHeimansgroeve | 102.0 | 67 | 12:02:21.58+17.58 s | – | – | – |