TELLIN (BE)
Quarry blast1 October 2020
- Magnitude
- 1.8ML
- Depth
- –
- Belgian time
- 14:54:562020-10-01
- UTC
- 12:54:562020-10-01
Main parameters
| Date and time | 2020-10-01 12:54:56 UTC 2020-10-01 14:54:56 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.082° N, 5.159° E Uncertainty ± 0.6 km |
| Event ID | ROB 11005 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-10-02 00:18:27 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
- 9.4 – 68.0km
- Mean velocity, P wave
- 5.6km/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: 7 measurements, root-mean-square deviation 0.35 s. S wave: 6 measurements, root-mean-square deviation 0.21 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)7 stations | |||||
| RCHRochefort | 9.4 | 31 | 12:54:58.61+1.73 s | 12:55:00.07+3.19 s | 1.46 |
| GESGesves | 34.1 | 351 | 12:55:03.03+6.15 s | 12:55:07.49+10.61 s | 4.46 |
| MRDMaredsous | 37.1 | 311 | 12:55:03.51+6.63 s | 12:55:08.27+11.39 s | 4.76 |
| CLAClavier | 38.8 | 15 | 12:55:03.88+7.00 s | 12:55:08.94+12.06 s | 5.06 |
| DOUDourbes | 40.4 | 272 | 12:55:04.16+7.28 s | 12:55:09.15+12.27 s | 4.99 |
| HOUHouvegnez | 67.5 | 63 | 12:55:08.68+11.80 s | – | – |
| KLBKalborn | 68.0 | 88 | 12:55:09.94+13.06 s | 12:55:17.06+20.18 s | 7.12 |