HR: 1340h
AN: S43A-1036    [Abstracts]
TI: A statistical study of volcano-tectonic, low frequency and hybrid earthquakes from Ethiopia
AU: * Quillen, A C
EM: alice.quillen@gmail.com
AF: University of Rochester, River Station, Rochester, NY 14627, United States
AU: Ebinger, C
EM: ebinger@earth.rochester.edu
AF: University of Rochester, River Station, Rochester, NY 14627, United States
AU: Campbell, E
EM: ecampbell@earth.rochester.edu
AF: University of Rochester, River Station, Rochester, NY 14627, United States
AU: Keir, D
EM: d.keir@gl.rhul.ac.uk
AF: Earth Sciences, University of Leeds, Leeds, LS29JT, United Kingdom
AU: Ayele, A
EM: atawon@yahoo.com
AF: Geophysical Observatory, Addis Ababa University, Addis Ababa, 000000, Ethiopia
AB: Volcano-tectonic, low-frequency, and hybrid earthquakes are anticipated near active volcanoes, but they are often overlooked in rift zones where dike intrusions may occur. A broadband seismic array in Ethiopia recorded seismicity from multiple dike injection events independently confirmed in geodetic data. We carry out statistical analyses of all events recorded on a 10-station array to automatically classify and characterize events over the 12-month deployment period. We correlate these events with deformation episodes recorded in GPS in InSAR data to understand the acoustic properties of the volcanic plumbing system beneath the rift zone.
DE: 0902 Computational methods: seismic
SC: Seismology [S]
MN: 2007 Fall Meeting