RUMELANGE (LU)
Quarry blast27 April 2021
- Magnitude
- 1.7ML
- Depth
- –
- Belgian time
- 10:20:342021-04-27
- UTC
- 08:20:342021-04-27
Main parameters
| Date and time | 2021-04-27 08:20:34 UTC 2021-04-27 10:20:34 Belgian time |
|---|---|
| Magnitude | ML 1.7 |
| Epicentral coordinates | 49.453° N, 6.013° E Uncertainty ± 4.6 km |
| Event ID | ROB 13260 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2021-04-30 15:32:58 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
- 55.4 – 117.8km
- Mean velocity, P wave
- 5.2km/s
- Mean velocity, S wave
- 3.2km/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: 5 measurements, root-mean-square deviation 0.71 s. S wave: 5 measurements, root-mean-square deviation 0.73 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 | |||||
| VIAVianden | 55.4 | 14 | 08:20:44.21+9.43 s | 08:20:48.66+13.88 s | 4.45 |
| KLBKalborn | 72.3 | 5 | 08:20:46.35+11.57 s | 08:20:55.37+20.59 s | 9.02 |
| RCHRochefort | 96.4 | 324 | 08:20:51.72+16.94 s | 08:21:02.51+27.73 s | 10.79 |
| HOUHouvegnez | 100.3 | 360 | 08:20:50.87+16.09 s | 08:21:05.09+30.31 s | 14.22 |
| MRGMont Rigi | 117.8 | 2 | 08:20:54.96+20.18 s | 08:21:09.63+34.85 s | 14.67 |