SOIGNIES (BE)

Known mine explosion3 September 2008

Magnitude
–
Depth
5.5km ± 2.0
Belgian time
16:20:162008-09-03
UTC
14:20:162008-09-03

Main parameters

Date and time2008-09-03 14:20:16 UTC
2008-09-03 16:20:16 Belgian time
Magnitude–
Epicentral coordinates50.594° N, 4.068° E
Uncertainty ± 1.4 km
Depth of hypocenter5.5 ± 2.0 km
Event IDROB 3783

Data source : ROB (Royal Observatory of Belgium)
Last update : 2012-04-27 16:33:58 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
6.2 – 35.6km
Mean velocity, P wave
5.9km/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 5.5 km. P wave: 6 measurements, root-mean-square deviation 0.05 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°UTCUTCsnm
Belgian seismic network (Royal Observatory of Belgium)6 stations
SKQSteenkerque6.2814:20:17.89+1.55 s–––
RQRRonquières11.28314:20:18.54+2.20 s14:20:20.47+4.13 s1.9310.2
SNFSeneffe17.912114:20:19.54+3.20 s–––
LESLessines20.530914:20:20.04+3.70 s14:20:22.59+6.25 s2.55–
OT5OT5-Genappe26.78214:20:21.14+4.80 s–––
OTTOttignies35.67814:20:22.51+6.17 s–––
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