FRANC-WARET (BE)
Quarry blast24 February 2017
- Magnitude
- 1.4ML
- Depth
- 7.2km ± 10.1
- Belgian time
- 14:15:142017-02-24
- UTC
- 13:15:142017-02-24
Main parameters
| Date and time | 2017-02-24 13:15:14 UTC 2017-02-24 14:15:14 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.538° N, 4.976° E Uncertainty ± 2.8 km |
| Depth of hypocenter | 7.2 ± 10.1 km |
| Event ID | ROB 5639 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-02-24 14:33:21 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
- 18.7 – 64.6km
- Mean velocity, P wave
- 5.9km/s
- Mean velocity, S wave
- 3.3km/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 7.2 km. P wave: 8 measurements, root-mean-square deviation 1.32 s. S wave: 5 measurements, root-mean-square deviation 0.32 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)8 stations | ||||||
| GESGesves | 18.7 | 155 | 13:15:18.03+3.05 s | 13:15:20.30+5.32 s | 2.27 | – |
| CLAClavier | 26.6 | 120 | 13:15:19.94+4.96 s | 13:15:23.56+8.58 s | 3.62 | 25.8 |
| MRDMaredsous | 30.1 | 209 | 13:15:20.32+5.34 s | 13:15:23.97+8.99 s | 3.65 | – |
| LCHLa Chartreuse | 45.5 | 75 | 13:15:19.08+4.10 s | – | – | – |
| RCHRochefort | 46.2 | 157 | 13:15:22.95+7.97 s | 13:15:28.90+13.92 s | 5.95 | – |
| DOUDourbes | 56.2 | 209 | 13:15:24.41+9.43 s | 13:15:31.74+16.76 s | 7.33 | – |
| EBNEben-Emael | 57.4 | 60 | 13:15:25.82+10.84 s | – | – | – |
| SKQSteenkerque | 64.6 | 281 | 13:15:25.58+10.60 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