ANDENNE (BE)

Quarry blast14 January 2022

Magnitude
1.4ML
Depth
–
Belgian time
11:53:172022-01-14
UTC
10:53:172022-01-14

Main parameters

Date and time2022-01-14 10:53:17 UTC
2022-01-14 11:53:17 Belgian time
MagnitudeML 1.4
Epicentral coordinates50.462° N, 5.036° E
Uncertainty ± 2.2 km
Event IDROB 15180

Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-01-18 11:36:00 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
9.2 – 86.4km
Mean velocity, P wave
5.8km/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 0.39 s.

Table of measurements

Station measurements

P- and S-wave arrivals and ground displacement measured at each station. Click a column heading to change the order.

km°UTCUTCs
Belgian seismic network (Royal Observatory of Belgium)5 stations
GESGesves9.215710:53:19.24+1.67 s10:53:20.69+3.12 s1.45
CLAClavier19.510410:53:21.27+3.70 s10:53:23.65+6.08 s2.38
RCHRochefort36.715810:53:24.61+7.04 s––
DOUDourbes51.521810:53:26.42+8.85 s10:53:33.07+15.50 s6.65
KLBKalborn86.411710:53:33.26+15.69 s––
Dutch seismic network (KNMI)1 station
HGNHeimansgroeve71.86210:53:29.65+12.08 s––
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