Seismic Source Migration During Strombolian Eruptions Inferred by Very‐Near‐Field Broadband Seismic Network

Relative partitioning of acoustic and seismic energy during Strombolian eruptions

The relative elastic energy partitioning during Strombolian eruptions can be estimated from acoustic pressure and seismic velocity records. We outline methods for determining acoustic and seismic energies for sensors deployed within several kilometers of erupting vents. We use these energies to introduce the concept of the volcano acoustic–seismic ratio (g, or VASR), which is the ratio of elast...

Analysis of Seismic Similarity in Strombolian Eruptions from Mount Erebus, Antarctica By

II ABSTRACT Mount Erebus has long been recognized to produce very similar seismic signatures associated with its Strombolian eruptions. decorrelation of the coda, accompanied by relative stability in the early seismogram. Using coda wave interferometry, this decorrelation was interpreted as a median change within the volcano. Closer examination of this data in this thesis shows that clipping du...

Migration of Seismic Data

Prospecting for oil and gas resources poses the problem of determining the geological structure of the earth's crust from indirect measurements. Seismic migration is an acoustic image reconstruction technique based on the inversion of the scalar wave equation. Extensive computation is necessary before reliable information can be extracted from large sets of recorded data. In this article, a col...

Seismic Source Identification Techniques

Broadband Seismic Methods for Towed-streamer Acquisition