PUTSCHEID (LU)
Quarry blast19 February 2021
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 15:30:132021-02-19
- UTC
- 14:30:132021-02-19
Main parameters
| Date and time | 2021-02-19 14:30:13 UTC 2021-02-19 15:30:13 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 49.982° N, 6.105° E Uncertainty ± 1.1 km |
| Event ID | ROB 12530 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2021-02-26 21:20:51 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
- 6
- Epicentral distance
- 8.7 – 75.2km
- Mean velocity, P wave
- 6.0km/s
- Mean velocity, S wave
- 3.4km/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: 6 measurements, root-mean-square deviation 0.14 s. S wave: 4 measurements, root-mean-square deviation 0.35 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)6 stations | |||||
| VIAVianden | 8.7 | 127 | 14:30:15.90+2.10 s | 14:30:16.52+2.72 s | 0.62 |
| KLBKalborn | 13.2 | 1 | 14:30:16.33+2.53 s | 14:30:18.63+4.83 s | 2.30 |
| HOUHouvegnez | 42.0 | 350 | 14:30:21.08+7.28 s | 14:30:26.30+12.50 s | 5.22 |
| TNLTernell | 67.2 | 1 | 14:30:25.34+11.54 s | – | – |
| MEMHMembach | 70.1 | 354 | 14:30:26.08+12.28 s | 14:30:35.10+21.30 s | 9.02 |
| CLAClavier | 75.2 | 311 | 14:30:26.68+12.88 s | – | – |