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To investigate the seismic velocity structure and sources of volcanism in Armenia using ambient noise tomography.

Deep Sources of Recent Volcanism in Armenia Inferred From Ambient Noise Tomography

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To investigate the seismic velocity structure and sources of volcanism in Armenia using ambient noise tomography.
Used Rayleigh wave ambient noise tomography to analyze seismic data.
Analyzed 19 months of continuous noise data from 32 seismic stations.
Performed two-step tomographic inversion for 2D and 3D velocity models.
Identified low-velocity anomalies down to 25 km near monogenetic cones, indicating potential magma zones.
Found a high-velocity zone at 40 km depth suggesting crustal thinning and asthenosphere upwelling.
Detected distinct structural features beneath Lake Sevan, linked to faulting and potential remnant oceanic crust.

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Ambient noise tomography reveals crustal structure and volcanism sources in Armenia, highlighting geological implications.

Meliksetian et al. (2026) studied this question.

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