AUBRIVES (FR)
Quarry blast19 September 2008
- Magnitude
- 1.1ML
- Depth
- 4.9km ± 4.4
- Belgian time
- 11:25:562008-09-19
- UTC
- 09:25:562008-09-19
Main parameters
| Date and time | 2008-09-19 09:25:56 UTC 2008-09-19 11:25:56 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.086° N, 4.785° E Uncertainty ± 1.1 km |
| Depth of hypocenter | 4.9 ± 4.4 km |
| Event ID | ROB 3745 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-11-25 13:52:16 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
- 13.6 – 39.6km
- 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 4.9 km. P wave: 4 measurements, root-mean-square deviation 0.07 s.
Station measurements
P- and S-wave arrivals and ground displacement measured at each station. Click a column heading to change the order.
| km | ° | UTC | UTC | s | nm | |
|---|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)4 stations | ||||||
| DOUDourbes | 13.6 | 274 | 09:25:59.20+2.26 s | 09:26:01.46+4.52 s | 2.26 | 28.0 |
| MRDMaredsous | 24.1 | 357 | 09:26:01.03+4.09 s | – | – | – |
| RCHRochefort | 32.6 | 76 | 09:26:02.52+5.58 s | 09:26:06.87+9.93 s | 4.35 | – |
| GESGesves | 39.6 | 33 | 09:26:03.55+6.61 s | 09:26:08.82+11.88 s | 5.27 | 6.7 |
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