FLORENNES (BE)
Quarry blast23 May 2016
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 10:37:592016-05-23
- UTC
- 08:37:592016-05-23
Main parameters
| Date and time | 2016-05-23 08:37:59 UTC 2016-05-23 10:37:59 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.270° N, 4.616° E Uncertainty ± 2.9 km |
| Event ID | ROB 5505 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2016-05-23 11:33:15 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
- 6
- Epicentral distance
- 11.4 – 51.6km
- Mean velocity, P wave
- 6.1km/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. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 6 measurements, root-mean-square deviation 0.23 s. S wave: 5 measurements, root-mean-square deviation 0.42 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 | |
|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)6 stations | |||||
| MRDMaredsous | 11.4 | 72 | 08:38:02.00+2.01 s | 08:38:03.57+3.58 s | 1.57 |
| DOUDourbes | 19.5 | 184 | 08:38:02.88+2.89 s | 08:38:05.69+5.70 s | 2.81 |
| SNFSeneffe | 35.7 | 319 | 08:38:05.62+5.63 s | 08:38:10.66+10.67 s | 5.04 |
| GESGesves | 35.9 | 69 | 08:38:05.66+5.67 s | 08:38:09.59+9.60 s | 3.93 |
| RCHRochefort | 45.5 | 106 | 08:38:07.49+7.50 s | 08:38:13.37+13.38 s | 5.88 |
| CLAClavier | 51.6 | 71 | 08:38:08.80+8.81 s | – | – |