AYENEUX (BE)
Quarry blast20 May 2019
- Magnitude
- 0.8ML
- Depth
- 2.3km ± 12.4
- Belgian time
- 13:37:022019-05-20
- UTC
- 11:37:022019-05-20
Main parameters
| Date and time | 2019-05-20 11:37:02 UTC 2019-05-20 13:37:02 Belgian time |
|---|---|
| Magnitude | ML 0.8 |
| Epicentral coordinates | 50.602° N, 5.721° E Uncertainty ± 1.7 km |
| Depth of hypocenter | 2.3 ± 12.4 km |
| Event ID | ROB 8165 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-05-20 14:33:04 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
- 9.5 – 36.0km
- Mean velocity, P wave
- 5.6km/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. Hypocenter at a depth of 2.3 km. P wave: 6 measurements, root-mean-square deviation 0.17 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 | nm | |
|---|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)6 stations | ||||||
| LCHLa Chartreuse | 9.5 | 295 | 11:37:04.03+1.66 s | – | – | – |
| STISart Tilman | 11.3 | 259 | 11:37:04.05+1.68 s | – | – | – |
| MEMHMembach | 20.5 | 88 | 11:37:05.98+3.61 s | – | – | – |
| EBNEben-Emael | 21.9 | 352 | 11:37:06.41+4.04 s | – | – | – |
| MRGMont Rigi | 27.1 | 112 | 11:37:07.22+4.85 s | – | – | – |
| CLAClavier | 36.0 | 236 | 11:37:08.52+6.15 s | 11:37:13.75+11.38 s | 5.23 | 5.1 |
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