RENDEUX (BE)

Quarry blast31 March 2022

Magnitude
1.4ML
Depth
–
Belgian time
15:45:362022-03-31
UTC
13:45:362022-03-31

Main parameters

Date and time2022-03-31 13:45:36 UTC
2022-03-31 15:45:36 Belgian time
MagnitudeML 1.4
Epicentral coordinates50.212° N, 5.582° E
Uncertainty ± 0.9 km
Event IDROB 15855

Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-04-06 09:34:16 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
26.1 – 117.3km
Mean velocity, P wave
5.8km/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 0.28 s. S wave: 7 measurements, root-mean-square deviation 0.54 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)13 stations
RCHRochefort26.125613:45:40.76+4.56 s13:45:43.91+7.71 s3.15
CLAClavier30.531913:45:41.83+5.63 s13:45:46.09+9.89 s4.26
HOUHouvegnez34.16213:45:41.88+5.68 s13:45:45.81+9.61 s3.93
KLBKalborn39.710813:45:42.90+6.70 s13:45:46.90+10.70 s4.00
GESGesves40.229913:45:43.52+7.32 s13:45:48.12+11.92 s4.60
LCHLa Chartreuse47.6113:45:45.21+9.01 s––
MRGMont Rigi48.44613:45:44.41+8.21 s13:45:50.24+14.04 s5.83
MEMHMembach53.73413:45:45.61+9.41 s13:45:52.25+16.05 s6.64
VIAVianden54.012413:45:45.63+9.43 s––
TNLTernell57.04313:45:45.95+9.75 s––
DOUDourbes71.726013:45:48.44+12.24 s––
SNFSeneffe98.229013:45:53.56+17.36 s––
SKQSteenkerque117.329513:45:56.54+20.34 s––
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