FERNELMONT (BE)
Quarry blast27 July 2017
- Magnitude
- 1.4ML
- Depth
- 10.0km
- Belgian time
- 13:41:452017-07-27
- UTC
- 11:41:452017-07-27
Main parameters
| Date and time | 2017-07-27 11:41:45 UTC 2017-07-27 13:41:45 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.520° N, 5.019° E Uncertainty ± 5.7 km |
| Depth of hypocenter | 10.0 km |
| Event ID | ROB 5810 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-07-27 14:33:12 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
- 15.7 – 70.1km
- 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 10.0 km. P wave: 7 measurements, root-mean-square deviation 0.81 s. S wave: 4 measurements, root-mean-square deviation 0.49 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)6 stations | ||||||
| GESGesves | 15.7 | 162 | 11:41:47.73+1.91 s | 11:41:49.80+3.98 s | 2.07 | 72.5 |
| CLAClavier | 23.0 | 119 | 11:41:49.98+4.16 s | 11:41:52.99+7.17 s | 3.01 | 70.9 |
| MRDMaredsous | 30.1 | 216 | 11:41:50.14+4.32 s | 11:41:54.01+8.19 s | 3.87 | 34.5 |
| DOUDourbes | 56.1 | 213 | 11:41:54.80+8.98 s | 11:42:01.27+15.45 s | 6.47 | – |
| RQRRonquières | 57.1 | 280 | 11:41:55.35+9.53 s | – | – | – |
| SKQSteenkerque | 68.0 | 283 | 11:41:55.54+9.72 s | – | – | – |
| Dutch seismic network (KNMI)1 station | ||||||
| HGNHeimansgroeve | 70.1 | 67 | 11:41:58.64+12.82 s | – | – | – |
Did you feel an earthquake?The inquiry takes just a few minutes. Every report helps seismologists assess the effects of the earthquake.
Take the inquiry