MARCHE-EN-FAMENNE (BE)
Quarry blast16 September 2022
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 12:12:162022-09-16
- UTC
- 10:12:162022-09-16
Main parameters
| Date and time | 2022-09-16 10:12:16 UTC 2022-09-16 12:12:16 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.187° N, 5.258° E Uncertainty ± 3.3 km |
| Event ID | ROB 17160 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-09-26 13:27:50 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
- 5
- Epicentral distance
- 4.2 – 61.6km
- Mean velocity, P wave
- 5.8km/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: 4 measurements, root-mean-square deviation 0.19 s. S wave: 4 measurements, root-mean-square deviation 0.17 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)5 stations | |||||
| RCHRochefort | 4.2 | 212 | 10:12:17.08+0.74 s | 10:12:17.92+1.58 s | 0.84 |
| CLAClavier | 26.0 | 7 | 10:12:21.16+4.82 s | 10:12:24.27+7.93 s | 3.11 |
| MRDMaredsous | 37.2 | 290 | – | 10:12:27.89+11.55 s | – |
| DOUDourbes | 48.5 | 258 | 10:12:25.22+8.88 s | 10:12:30.78+14.44 s | 5.56 |
| KLBKalborn | 61.6 | 99 | 10:12:27.08+10.74 s | – | – |