Dan Sandiford edited Results.md  about 9 years ago

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#Early results from borehole array.  Since their dployment deployment  a number of earthquakes have been detected with the new borehole instruments (Figure 1), including a sequnce sequence  of low magnitude aftershock events following the M3.2 Moe earthquake of October ??, 17,  2014. As our processing and analysis methods develop, we envisage that much smaller events will emerge from the data. ##2014-10-10UTC10:20, near Korumburra, Estimated magnitude: 1.5 

Figure 4 shows the event at the nearest telemetered surface staion. Whilst the event is clearly present on the surface record, the signal to noise level is much smaller. Also, no clear S-wave arrival can be determined. The corresponding STA/LTA filter shows multiple spikes of similar amplitude, meaning that any automatic detection routine using a STA/LTA filter is ambiguous.   ##2014-10-17UTC08:13, near Moe, Estimated magnitude: 3.2  #Future work  We are currently developing tools for the automatic detection and location of microseismicity, as well as the real-time noise cross-correlation of ambient noise from all stations. In combination with other AGOS geophysical data, we are building a state-of-the art seismic monitoring laboritory in a region of significant (intraplate) earthquake activity.