SPRIMONT (BE)

Quarry blast10 May 2022

Magnitude
1.0ML
Depth
–
Belgian time
15:00:412022-05-10
UTC
13:00:412022-05-10

Main parameters

Date and time2022-05-10 13:00:41 UTC
2022-05-10 15:00:41 Belgian time
MagnitudeML 1.0
Epicentral coordinates50.490° N, 5.615° E
Uncertainty ± 1.0 km
Event IDROB 16140

Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-05-13 15:36:52 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
11
Epicentral distance
11.0 – 110.2km
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: 11 measurements, root-mean-square deviation 0.20 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)11 stations
STISart Tilman11.034113:00:44.08+2.22 s––
CLAClavier23.625113:00:46.09+4.23 s––
MEMSMembach31.06513:00:47.61+5.75 s13:00:51.14+9.28 s3.53
MEMHMembach31.06513:00:47.61+5.75 s––
HOUHouvegnez31.611813:00:47.67+5.81 s––
MRGMont Rigi32.78613:00:47.68+5.82 s13:00:51.26+9.40 s3.58
GESGesves39.325313:00:48.75+6.89 s13:00:53.26+11.40 s4.51
RCHRochefort46.421713:00:49.58+7.72 s––
KLBKalborn55.814113:00:51.89+10.03 s––
DOUDourbes84.923913:00:56.66+14.80 s––
SKQSteenkerque110.228013:01:01.33+19.47 s––
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