FERNELMONT (BE)
Quarry blast24 May 2016
- Magnitude
- 1.8ML
- Depth
- –
- Belgian time
- 14:27:392016-05-24
- UTC
- 12:27:392016-05-24
Main parameters
| Date and time | 2016-05-24 12:27:39 UTC 2016-05-24 14:27:39 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.549° N, 4.976° E Uncertainty ± 3.2 km |
| Event ID | ROB 5507 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2016-05-24 14:57:40 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
- 19.9 – 76.2km
- 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. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 9 measurements, root-mean-square deviation 0.35 s. S wave: 5 measurements, root-mean-square deviation 0.48 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)8 stations | |||||
| GESGesves | 19.9 | 157 | 12:27:41.93+2.84 s | 12:27:43.88+4.79 s | 1.95 |
| CLAClavier | 27.3 | 122 | 12:27:44.13+5.04 s | 12:27:47.29+8.20 s | 3.16 |
| MRDMaredsous | 31.2 | 208 | 12:27:44.26+5.17 s | 12:27:48.49+9.40 s | 4.23 |
| RCHRochefort | 47.3 | 158 | 12:27:46.87+7.78 s | 12:27:52.51+13.42 s | 5.64 |
| DOUDourbes | 57.3 | 208 | 12:27:49.07+9.98 s | – | – |
| SKQSteenkerque | 64.4 | 280 | 12:27:50.26+11.17 s | – | – |
| MEMSMembach | 73.5 | 84 | 12:27:51.98+12.89 s | 12:28:00.17+21.08 s | 8.19 |
| HOUHouvegnez | 76.2 | 106 | 12:27:51.64+12.55 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 71.7 | 70 | 12:27:51.85+12.76 s | – | – |