ANTHISNES (BE)

Quarry blast24 November 2022

Magnitude
1.1ML
Depth
–
Belgian time
13:18:302022-11-24
UTC
12:18:302022-11-24

Main parameters

Date and time2022-11-24 12:18:30 UTC
2022-11-24 13:18:30 Belgian time
MagnitudeML 1.1
Epicentral coordinates50.490° N, 5.548° E
Uncertainty ± 0.6 km
Event IDROB 17865

Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-11-28 08:32:17 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
13
Epicentral distance
16.9 – 80.9km
Mean velocity, P wave
6.0km/s
Mean velocity, S wave
3.4km/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: 13 measurements, root-mean-square deviation 0.22 s. S wave: 8 measurements, root-mean-square deviation 0.11 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)10 stations
LCHLa Chartreuse16.91212:18:34.34+3.76 s––
CLAClavier19.224612:18:33.92+3.34 s12:18:36.89+6.31 s2.97
GESGesves34.825112:18:36.87+6.29 s12:18:41.24+10.66 s4.37
MEMHMembach35.36812:18:36.89+6.31 s12:18:41.33+10.75 s4.44
MEMSMembach35.36812:18:36.98+6.40 s12:18:41.47+10.89 s4.49
HOUHouvegnez35.911512:18:37.39+6.81 s12:18:41.61+11.03 s4.22
MRGMont Rigi37.58612:18:37.34+6.76 s12:18:42.00+11.42 s4.66
TNLTernell42.67512:18:38.12+7.54 s12:18:43.81+13.23 s5.69
TGATangissart73.828012:18:43.27+12.69 s––
DOUDourbes80.923712:18:44.96+14.38 s––
Dutch seismic network (KNMI)2 stations
TERZTerziet39.04012:18:37.63+7.05 s12:18:42.58+12.00 s4.95
HGNHeimansgroeve40.84212:18:38.14+7.56 s––
Bensberg seismic network (University of Cologne, Germany)1 station
KLLKalltalsperre56.87212:18:40.47+9.89 s––
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