MARCHE-EN-FAMENNE (BE)
Quarry blast4 May 2022
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 13:05:242022-05-04
- UTC
- 11:05:242022-05-04
Main parameters
| Date and time | 2022-05-04 11:05:24 UTC 2022-05-04 13:05:24 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.162° N, 5.272° E Uncertainty ± 2.4 km |
| Event ID | ROB 16065 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-05-08 13:54:36 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
- 3.3 – 39.2km
- Mean velocity, P wave
- 5.4km/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 0.12 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 | |||||
| RCHRochefort | 3.3 | 256 | 11:05:24.89+0.57 s | 11:05:25.37+1.05 s | 0.48 |
| GESGesves | 28.1 | 332 | 11:05:29.60+5.28 s | 11:05:33.06+8.74 s | 3.46 |
| CLAClavier | 28.6 | 4 | 11:05:29.37+5.05 s | – | – |
| MRDMaredsous | 39.2 | 294 | 11:05:31.50+7.18 s | 11:05:36.48+12.16 s | 4.98 |
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