ENGIS (BE)
Quarry blast10 May 2022
- Magnitude
- 0.9ML
- Depth
- –
- Belgian time
- 12:26:222022-05-10
- UTC
- 10:26:222022-05-10
Main parameters
| Date and time | 2022-05-10 10:26:22 UTC 2022-05-10 12:26:22 Belgian time |
|---|---|
| Magnitude | ML 0.9 |
| Epicentral coordinates | 50.549° N, 5.356° E Uncertainty ± 1.8 km |
| Event ID | ROB 16130 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-05-13 15:33:56 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
- 14.9 – 74.1km
- Mean velocity, P wave
- 5.6km/s
- Mean velocity, S wave
- 3.3km/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 0.19 s. S wave: 5 measurements, root-mean-square deviation 0.19 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)7 stations | |||||
| CLAClavier | 14.9 | 195 | 10:26:25.24+2.58 s | 10:26:27.39+4.73 s | 2.15 |
| LCHLa Chartreuse | 19.9 | 60 | 10:26:26.50+3.84 s | 10:26:29.09+6.43 s | 2.59 |
| GESGesves | 26.4 | 226 | 10:26:27.23+4.57 s | 10:26:30.96+8.30 s | 3.73 |
| EBNEben-Emael | 35.8 | 39 | 10:26:29.31+6.65 s | 10:26:33.36+10.70 s | 4.05 |
| MEMHMembach | 46.8 | 82 | 10:26:30.91+8.25 s | – | – |
| KLBKalborn | 73.3 | 133 | 10:26:36.02+13.36 s | – | – |
| DOUDourbes | 74.1 | 227 | 10:26:35.90+13.24 s | 10:26:45.25+22.59 s | 9.35 |