DURBUY (BE)
Quarry blast5 March 2020
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 14:21:452020-03-05
- UTC
- 13:21:452020-03-05
Main parameters
| Date and time | 2020-03-05 13:21:45 UTC 2020-03-05 14:21:45 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.363° N, 5.566° E Uncertainty ± 0.8 km |
| Event ID | ROB 9400 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-03-05 22:31:54 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
- 19.7 – 75.4km
- 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 0.20 s. S wave: 6 measurements, root-mean-square deviation 0.30 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 | |||||
| CLAClavier | 19.7 | 288 | 13:21:48.72+3.20 s | 13:21:52.15+6.63 s | 3.43 |
| HOUHouvegnez | 31.3 | 92 | 13:21:51.14+5.62 s | – | – |
| RCHRochefort | 33.4 | 226 | 13:21:51.23+5.71 s | 13:21:55.48+9.96 s | 4.25 |
| GESGesves | 34.1 | 274 | 13:21:51.58+6.06 s | 13:21:56.32+10.80 s | 4.74 |
| MEMHMembach | 41.8 | 49 | 13:21:53.03+7.51 s | 13:21:58.13+12.61 s | 5.10 |
| KLBKalborn | 48.6 | 127 | 13:21:54.04+8.52 s | 13:22:00.46+14.94 s | 6.42 |
| DOUDourbes | 75.4 | 247 | 13:21:58.96+13.44 s | 13:22:08.19+22.67 s | 9.23 |