NASSOGNE (BE)
Quarry blast30 May 2017
- Magnitude
- 1.2ML
- Depth
- 5.8km ± 10.0
- Belgian time
- 12:07:042017-05-30
- UTC
- 10:07:042017-05-30
Main parameters
| Date and time | 2017-05-30 10:07:04 UTC 2017-05-30 12:07:04 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.157° N, 5.382° E Uncertainty ± 7.3 km |
| Depth of hypocenter | 5.8 ± 10.0 km |
| Event ID | ROB 5729 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-05-31 07:27:59 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
- 4
- Epicentral distance
- 11.1 – 56.7km
- 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 5.8 km. P wave: 4 measurements, root-mean-square deviation 0.72 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)4 stations | ||||||
| RCHRochefort | 11.1 | 269 | 10:07:07.07+2.52 s | 10:07:07.72+3.17 s | 0.65 | – |
| CLAClavier | 29.6 | 349 | 10:07:08.65+4.10 s | – | – | – |
| GESGesves | 32.9 | 320 | 10:07:11.08+6.53 s | 10:07:14.40+9.85 s | 3.32 | – |
| DOUDourbes | 56.7 | 263 | 10:07:14.87+10.32 s | 10:07:21.01+16.46 s | 6.14 | 7.5 |
Did you feel an earthquake?The inquiry takes just a few minutes. Every report helps seismologists assess the effects of the earthquake.
Take the inquiry