GESVES (BE)
Quarry blast4 March 2022
- Magnitude
- 1.8ML
- Depth
- –
- Belgian time
- 13:48:102022-03-04
- UTC
- 12:48:102022-03-04
Main parameters
| Date and time | 2022-03-04 12:48:10 UTC 2022-03-04 13:48:10 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.435° N, 5.035° E Uncertainty ± 1.9 km |
| Event ID | ROB 15555 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-03-08 09:15:08 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
- 19.1 – 85.2km
- Mean velocity, P wave
- 5.6km/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. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 7 measurements, root-mean-square deviation 0.33 s. S wave: 5 measurements, root-mean-square deviation 0.58 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)6 stations | |||||
| CLAClavier | 19.1 | 95 | 12:48:13.91+3.45 s | 12:48:16.56+6.10 s | 2.65 |
| MRDMaredsous | 24.1 | 232 | 12:48:14.29+3.83 s | 12:48:17.23+6.77 s | 2.94 |
| RCHRochefort | 34.0 | 156 | 12:48:16.54+6.08 s | 12:48:21.41+10.95 s | 4.87 |
| DOUDourbes | 49.1 | 220 | 12:48:19.03+8.57 s | 12:48:25.10+14.64 s | 6.07 |
| SNFSeneffe | 54.0 | 279 | 12:48:20.15+9.69 s | – | – |
| KLBKalborn | 85.2 | 116 | 12:48:25.89+15.43 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| VKBValkenburg | 71.6 | 48 | 12:48:23.88+13.42 s | 12:48:30.71+20.25 s | 6.83 |