FLORENNES (BE)
Known mine explosion1 July 2015
- Magnitude
- 1.6ML
- Depth
- 3.9km ± 5.0
- Belgian time
- 10:54:012015-07-01
- UTC
- 08:54:012015-07-01
Main parameters
| Date and time | 2015-07-01 08:54:01 UTC 2015-07-01 10:54:01 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.251° N, 4.622° E Uncertainty ± 1.3 km |
| Depth of hypocenter | 3.9 ± 5.0 km |
| Event ID | ROB 5358 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2015-07-08 07:52:35 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
- 7
- Epicentral distance
- 11.9 – 58.7km
- Mean velocity, P wave
- 5.6km/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 3.9 km. P wave: 7 measurements, root-mean-square deviation 0.31 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 | 11.9 | 61 | 08:54:03.77+2.03 s | 08:54:05.41+3.67 s | 1.64 | 91.5 |
| DOUDourbes | 17.4 | 186 | 08:54:04.79+3.05 s | 08:54:07.19+5.45 s | 2.40 | – |
| GESGesves | 36.3 | 66 | 08:54:08.53+6.79 s | – | – | 26.1 |
| SNFSeneffe | 37.6 | 320 | 08:54:07.71+5.97 s | – | – | – |
| RCHRochefort | 44.5 | 104 | 08:54:09.21+7.47 s | 08:54:14.71+12.97 s | 5.50 | 24.2 |
| RQRRonquières | 48.5 | 325 | 08:54:10.40+8.66 s | – | – | – |
| SKQSteenkerque | 58.7 | 319 | 08:54:12.13+10.39 s | – | – | – |
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