REBECQ (BE)
Quarry blast2 June 2020
- Magnitude
- 0.7ML
- Depth
- –
- Belgian time
- 13:24:382020-06-02
- UTC
- 11:24:382020-06-02
Main parameters
| Date and time | 2020-06-02 11:24:38 UTC 2020-06-02 13:24:38 Belgian time |
|---|---|
| Magnitude | ML 0.7 |
| Epicentral coordinates | 50.689° N, 4.108° E Uncertainty ± 3.0 km |
| Event ID | ROB 10150 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-06-02 14:17:04 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
- 4.9 – 30.8km
- Mean velocity, P wave
- 6.2km/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 0.08 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 | 4.9 | 204 | 11:24:40.17+1.27 s | 11:24:40.40+1.50 s | 0.23 |
| RQRRonquières | 12.4 | 138 | 11:24:41.47+2.57 s | – | – |
| UCCBUccle | 21.5 | 56 | 11:24:42.74+3.84 s | 11:24:45.85+6.95 s | 3.11 |
| TGATangissart | 30.8 | 108 | 11:24:44.42+5.52 s | 11:24:49.53+10.63 s | 5.11 |