REBECQ (BE)
Quarry blast21 January 2019
- Magnitude
- 1.2ML
- Depth
- –
- Belgian time
- 14:48:122019-01-21
- UTC
- 13:48:122019-01-21
Main parameters
| Date and time | 2019-01-21 13:48:12 UTC 2019-01-21 14:48:12 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.690° N, 4.103° E Uncertainty ± 0.6 km |
| Event ID | ROB 7675 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-01-22 11:07:24 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
- 4
- Epicentral distance
- 4.8 – 21.7km
- Mean velocity, P wave
- 5.9km/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: 4 measurements, root-mean-square deviation 0.03 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)4 stations | |||||
| SKQSteenkerque | 4.8 | 200 | 13:48:13.59+1.17 s | 13:48:14.02+1.60 s | 0.43 |
| RQRRonquières | 12.7 | 137 | 13:48:14.91+2.49 s | – | – |
| LESLessines | 18.5 | 278 | 13:48:15.98+3.56 s | 13:48:18.38+5.96 s | 2.40 |
| UCCBUccle | 21.7 | 57 | 13:48:16.45+4.03 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