TELLIN (BE)
Quarry blast4 March 2020
- Magnitude
- 1.9ML
- Depth
- –
- Belgian time
- 12:43:162020-03-04
- UTC
- 11:43:162020-03-04
Main parameters
| Date and time | 2020-03-04 11:43:16 UTC 2020-03-04 12:43:16 Belgian time |
|---|---|
| Magnitude | ML 1.9 |
| Epicentral coordinates | 50.080° N, 5.169° E Uncertainty ± 1.2 km |
| Event ID | ROB 9375 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-03-04 15:37:10 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
- 9.3 – 67.3km
- 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 0.13 s. S wave: 5 measurements, root-mean-square deviation 0.13 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 | 9.3 | 26 | 11:43:17.75+1.70 s | – | – |
| GESGesves | 34.5 | 350 | 11:43:22.34+6.29 s | 11:43:26.62+10.57 s | 4.28 |
| MRDMaredsous | 37.8 | 311 | 11:43:22.85+6.80 s | 11:43:27.77+11.72 s | 4.92 |
| CLAClavier | 38.9 | 14 | 11:43:23.02+6.97 s | 11:43:27.70+11.65 s | 4.68 |
| DOUDourbes | 41.1 | 273 | 11:43:23.42+7.37 s | 11:43:28.56+12.51 s | 5.14 |
| HOUHouvegnez | 67.0 | 63 | 11:43:28.00+11.95 s | – | – |
| KLBKalborn | 67.3 | 88 | 11:43:27.67+11.62 s | 11:43:36.43+20.38 s | 8.76 |