TELLIN (BE)
Quarry blast13 January 2021
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 14:35:432021-01-13
- UTC
- 13:35:432021-01-13
Main parameters
| Date and time | 2021-01-13 13:35:43 UTC 2021-01-13 14:35:43 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.090° N, 5.164° E Uncertainty ± 0.6 km |
| Event ID | ROB 11870 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2021-01-13 22:54:20 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
- 8.5 – 67.6km
- Mean velocity, P wave
- 5.8km/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 0.15 s. S wave: 5 measurements, root-mean-square deviation 0.14 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 | |||||
| RCHRochefort | 8.5 | 32 | 13:35:45.34+1.56 s | 13:35:46.65+2.87 s | 1.31 |
| GESGesves | 33.3 | 351 | 13:35:50.01+6.23 s | 13:35:54.19+10.41 s | 4.18 |
| MRDMaredsous | 36.8 | 310 | 13:35:50.25+6.47 s | 13:35:55.07+11.29 s | 4.82 |
| CLAClavier | 37.9 | 15 | 13:35:50.67+6.89 s | – | – |
| DOUDourbes | 40.7 | 271 | 13:35:50.97+7.19 s | 13:35:56.21+12.43 s | 5.24 |
| KLBKalborn | 67.6 | 89 | 13:35:55.73+11.95 s | 13:36:03.93+20.15 s | 8.20 |