Seismic Coda and Icequake Data from Mount Erebus Volcano

Over 100 short-period and broadband seismographs recorded thousands of small icequakes on Mount Erebus volcano in Antarctica. The dataset, published by SCIOPS in 2012, examines seismic coda wavefields to estimate Green's functions and scattering properties. It supports research on multiple scattering and correlation function optimization for monitoring volcanic structures.

Use Cases

• Estimate Green's functions via coda cross-correlation using seismic recordings from over 100 stations.
• Analyze modal energy partition between S and P wave energy in the 1-4 Hz frequency range from icequake sources.
• Map surface wave reflections from outer craters by recovering singly scattered arrivals in correlation function coda.
• Estimate scattering and absorption mean free path lengths to characterize the quasi-Rayleigh scattering situation between 1.5 and 3.3 Hz.
• Test optimization of coda window selection via Markov Chain Monte Carlo to improve interstation correlation function coherence.

Strengths

• Data from an unusually dense deployment of over 100 seismographs within a 5 km aperture.
• Analysis based on thousands of small icequake sources, providing a substantial event catalog.
• Investigates wavefield properties across multiple frequency bands (e.g., 1-4 Hz, 1.5-3.3 Hz).

Limitations

• Specific row counts, file sizes, and detailed column structures are unknown.
• Data is from a single geographic locale (Mount Erebus), limiting generalizability.
• The dataset was last updated in 2012, which may limit relevance for contemporary monitoring techniques.

Provenance

Source

SCIOPS, via NASA EarthData (nasa_earthdata).

Collection Method

Recorded by a dense network of short-period and broadband seismographs deployed on Mount Erebus volcano.

Freshness

Last updated 2012-02-01.

Geography

Summit region of Mount Erebus volcano, Antarctica.