DURBUY (BE)
Quarry blast11 June 2020
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 13:42:302020-06-11
- UTC
- 11:42:302020-06-11
Main parameters
| Date and time | 2020-06-11 11:42:30 UTC 2020-06-11 13:42:30 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.353° N, 5.563° E Uncertainty ± 1.1 km |
| Event ID | ROB 10260 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-06-11 15:57:56 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
- 20.0 – 48.1km
- 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: 6 measurements, root-mean-square deviation 0.23 s. S wave: 5 measurements, root-mean-square deviation 0.35 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 | |||||
| CLAClavier | 20.0 | 292 | 11:42:33.80+3.43 s | – | – |
| RCHRochefort | 32.6 | 228 | 11:42:36.44+6.07 s | 11:42:40.06+9.69 s | 3.62 |
| GESGesves | 34.1 | 276 | 11:42:36.71+6.34 s | 11:42:41.48+11.11 s | 4.77 |
| MRGMont Rigi | 40.4 | 64 | 11:42:37.84+7.47 s | 11:42:42.64+12.27 s | 4.80 |
| MEMHMembach | 42.6 | 48 | 11:42:37.86+7.49 s | 11:42:43.18+12.81 s | 5.32 |
| KLBKalborn | 48.1 | 126 | 11:42:38.61+8.24 s | 11:42:45.25+14.88 s | 6.64 |