Germany (8 km Grevenmacher)
Quarry blast12 May 2022
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 10:47:512022-05-12
- UTC
- 08:47:512022-05-12
Main parameters
| Date and time | 2022-05-12 08:47:51 UTC 2022-05-12 10:47:51 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 49.735° N, 6.435° E Uncertainty ± 4.1 km |
| Event ID | ROB 16170 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-05-13 15:47:13 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
- 8
- Epicentral distance
- 27.9 – 138.1km
- Mean velocity, P wave
- 5.8km/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: 6 measurements, root-mean-square deviation 0.18 s.
Stations farther than 120 km are left out of the fit: the first waves to reach them have travelled beneath the crust, through the mantle, where they propagate faster.
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 | |||||
| VIAVianden | 27.9 | 323 | 08:47:56.66+4.82 s | 08:48:00.36+8.52 s | 3.70 |
| KLBKalborn | 46.9 | 330 | 08:48:00.03+8.19 s | – | – |
| HOUHouvegnez | 75.4 | 336 | 08:48:04.59+12.75 s | 08:48:13.62+21.78 s | 9.03 |
| MRGMont Rigi | 90.1 | 344 | 08:48:07.65+15.81 s | – | – |
| MEMSMembach | 101.9 | 343 | 08:48:09.60+17.76 s | – | – |
| GESGesves | 120.6 | 307 | 08:48:12.48+20.64 s | – | – |
| DOUDourbes | 138.1 | 288 | 08:48:15.25+23.41 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 120.0 | 343 | 08:48:12.43+20.59 s | – | – |