ELSENBORN (BE)
Controlled explosion8 February 2021
- Magnitude
- 0.6ML
- Depth
- –
- Belgian time
- 12:52:282021-02-08
- UTC
- 11:52:282021-02-08
Main parameters
| Date and time | 2021-02-08 11:52:28 UTC 2021-02-08 12:52:28 Belgian time |
|---|---|
| Magnitude | ML 0.6 |
| Epicentral coordinates | 50.456° N, 6.286° E Uncertainty ± 0.9 km |
| Event ID | ROB 12330 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2021-02-12 11:50:55 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
- 16.2 – 41.6km
- Mean velocity, P wave
- 5.8km/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 0.12 s. S wave: 6 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 | nm | |
|---|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)5 stations | ||||||
| MRGMont Rigi | 16.2 | 292 | 11:52:31.31+2.91 s | 11:52:33.56+5.16 s | 2.25 | – |
| TNLTernell | 18.2 | 323 | 11:52:31.80+3.40 s | 11:52:34.23+5.83 s | 2.43 | 3.6 |
| HOUHouvegnez | 23.0 | 241 | 11:52:32.42+4.02 s | 11:52:35.15+6.75 s | 2.73 | 6.5 |
| MEMHMembach | 26.0 | 311 | 11:52:32.97+4.57 s | 11:52:36.41+8.01 s | 3.44 | – |
| KLBKalborn | 41.6 | 198 | 11:52:35.81+7.41 s | 11:52:41.14+12.74 s | 5.33 | – |
| Bensberg seismic network (University of Cologne, Germany)2 stations | ||||||
| KLLKalltalsperre | 21.3 | 5 | 11:52:32.05+3.65 s | – | – | – |
| DREDreilägerbach | 23.3 | 351 | 11:52:32.77+4.37 s | 11:52:35.83+7.43 s | 3.06 | – |