SOIGNIES (BE)
Quarry blast24 June 2020
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 14:03:542020-06-24
- UTC
- 12:03:542020-06-24
Main parameters
| Date and time | 2020-06-24 12:03:54 UTC 2020-06-24 14:03:54 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.579° N, 4.094° E Uncertainty ± 1.4 km |
| Event ID | ROB 10360 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-06-25 07:45:23 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
- 7.8 – 99.2km
- 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: 9 measurements, root-mean-square deviation 0.27 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)9 stations | |||||
| SKQSteenkerque | 7.8 | 353 | 12:03:55.77+1.62 s | 12:03:56.86+2.71 s | 1.09 |
| RQRRonquières | 9.8 | 72 | 12:03:56.41+2.26 s | – | – |
| BRQBracquegnies | 11.3 | 165 | 12:03:56.23+2.08 s | – | – |
| TGATangissart | 30.5 | 84 | 12:03:59.68+5.53 s | 12:04:03.48+9.33 s | 3.80 |
| UCCBUccle | 30.7 | 38 | 12:03:59.17+5.02 s | – | – |
| MRDMaredsous | 57.0 | 123 | 12:04:04.55+10.40 s | – | – |
| CLAClavier | 87.6 | 101 | 12:04:08.92+14.77 s | – | – |
| RCHRochefort | 93.4 | 120 | 12:04:10.30+16.15 s | – | – |
| MOLSMol | 99.2 | 44 | 12:04:11.16+17.01 s | – | – |
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