JEMELLE (BE)

Known mine explosion2 July 2008

Magnitude
1.4ML
Depth
3.1km ± 2.3
Belgian time
11:52:182008-07-02
UTC
09:52:182008-07-02

Main parameters

Date and time2008-07-02 09:52:18 UTC
2008-07-02 11:52:18 Belgian time
MagnitudeML 1.4
Epicentral coordinates50.158° N, 5.279° E
Uncertainty ± 1.5 km
Depth of hypocenter3.1 ± 2.3 km
Event IDROB 3153

Data source : ROB (Royal Observatory of Belgium)
Last update : 2009-05-30 18:17:43 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
4
Epicentral distance
3.7 – 49.4km
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. Hypocenter at a depth of 3.1 km. P wave: 4 measurements, root-mean-square deviation 0.12 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)4 stations
RCHRochefort3.726409:52:19.68+0.87 s–––
GESGesves28.733209:52:23.59+4.78 s09:52:27.36+8.55 s3.7721.7
CLAClavier29.0309:52:23.96+5.15 s09:52:27.53+8.72 s3.5720.4
DOUDourbes49.426209:52:27.42+8.61 s09:52:33.34+14.53 s5.9216.7
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