Other formats

    Adobe Portable Document Format file (facsimile images)   TEI XML file   ePub eBook file  

Connect

    mail icontwitter iconBlogspot iconrss icon

Immediate Report of Victoria University Of Wellington Antarctic Expedition 1987-88: VUWAE 32

Future Research

Future Research

The recognition of families of "identical" earthquakes is a fast developing area in volcanic seismology, because it enables the work of locating earthquake foci to be reduced and/or made more accurate. It is easy to do using digital seismograms, and then the stacked average seismogram with improved signal to noise ratio, and the residual waveform showing how individuals differ from average are easily obtainable.

Already an important difference between Erebus and Sakurajima has been found: Erebus explosion earthquakes are often identical from onset to coda, but Sakurajima ones become different in the coda, presumably because the source volumes of the explosions develop differently, even though they may initiate in the same place, and thus cause earthquakes with identical onsets.