RENLIES (BE)

Known mine explosion7 July 2010

Magnitude
1.3ML
Depth
1.0km ± 24.7
Belgian time
11:44:482010-07-07
UTC
09:44:482010-07-07

Main parameters

Date and time2010-07-07 09:44:48 UTC
2010-07-07 11:44:48 Belgian time
MagnitudeML 1.3
Epicentral coordinates50.249° N, 4.284° E
Uncertainty ± 12.4 km
Depth of hypocenter1.0 ± 24.7 km
Event IDROB 3905

Data source : ROB (Royal Observatory of Belgium)
Last update : 2010-07-12 11:07:28 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
9
Epicentral distance
28.1 – 141.6km
Mean velocity, P wave
5.1km/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 1.0 km. P wave: 7 measurements, root-mean-square deviation 2.65 s.

Stations farther than 120 km are left out of the fit: the first waves to reach them have travelled beneath the crust, through the mantle, where they propagate faster.

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)9 stations
DOUDourbes28.112809:45:00.13+11.57 s09:44:55.38+6.82 s−4.758.8
BOUBougnies28.730309:44:54.08+5.52 s–––
SNFSeneffe29.1009:44:51.58+3.02 s–––
MRDMaredsous35.08009:44:53.28+4.72 s–––
RQRRonquières39.935409:44:56.37+7.81 s09:44:57.86+9.30 s1.49–
SKQSteenkerque46.834209:44:58.65+10.09 s09:45:03.61+15.05 s4.9626.8
RCHRochefort68.19809:45:02.78+14.22 s–––
KLBKalborn131.497–09:45:28.08+39.52 s––
VIAVianden141.610409:45:30.65+42.09 s–––
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