EUPEN (BE)
Quarry blast27 October 2022
- Magnitude
- 0.8ML
- Depth
- –
- Belgian time
- 10:21:532022-10-27
- UTC
- 08:21:532022-10-27
Main parameters
| Date and time | 2022-10-27 08:21:53 UTC 2022-10-27 10:21:53 Belgian time |
|---|---|
| Magnitude | ML 0.8 |
| Epicentral coordinates | 50.657° N, 6.032° E Uncertainty ± 0.3 km |
| Event ID | ROB 17560 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-11-21 14:29:52 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
- 5.6 – 19.8km
- Mean velocity, P wave
- 5.3km/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 0.06 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 | |||||
| MEMSMembach | 5.6 | 196 | 08:21:54.90+1.09 s | – | – |
| MEMHMembach | 5.6 | 196 | 08:21:54.90+1.09 s | – | – |
| TNLTernell | 10.5 | 139 | 08:21:55.86+2.05 s | 08:21:57.52+3.71 s | 1.66 |
| MRGMont Rigi | 16.5 | 169 | 08:21:57.07+3.26 s | – | – |
| Dutch seismic network (KNMI)2 stations | |||||
| HGNHeimansgroeve | 13.8 | 329 | 08:21:56.55+2.74 s | 08:21:58.57+4.76 s | 2.02 |
| TERZTerziet | 14.2 | 321 | 08:21:56.44+2.63 s | 08:21:58.61+4.80 s | 2.17 |
| Bensberg seismic network (University of Cologne, Germany)1 station | |||||
| KLLKalltalsperre | 19.8 | 93 | 08:21:57.56+3.75 s | – | – |
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