LOYERS (BE)

Known mine explosion7 October 2008

Magnitude
0.8ML
Depth
2.5km ± 6.5
Belgian time
11:34:502008-10-07
UTC
09:34:502008-10-07

Main parameters

Date and time2008-10-07 09:34:50 UTC
2008-10-07 11:34:50 Belgian time
MagnitudeML 0.8
Epicentral coordinates50.451° N, 4.944° E
Uncertainty ± 3.0 km
Depth of hypocenter2.5 ± 6.5 km
Event IDROB 3766

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
12.5 – 47.3km
Mean velocity, P wave
5.6km/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 2.5 km. P wave: 6 measurements, root-mean-square deviation 0.31 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
GESGesves12.512609:34:52.36+2.25 s–––
GRZGrand Leez19.031909:34:53.15+3.04 s09:34:55.82+5.71 s2.67–
CLAClavier25.79809:34:54.41+4.30 s09:34:58.07+7.96 s3.666.3
OT1OT1-Mellery30.930209:34:56.18+6.07 s09:34:59.33+9.22 s3.15–
OTTOttignies35.731109:34:56.32+6.21 s–––
SNFSeneffe47.327809:34:58.25+8.14 s–––
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