Seismic travel times differ based on factors other than distance.
the verdict
SUPPORTED
the evidence backs this
confidence 88/100
Seismic travel times are influenced by structural heterogeneities, composition, and temperature variations within the Earth's interior, meaning they depend on factors other than distance alone.
Evidence for · 4
Imaging the Mediterranean upper mantle by p- wave travel time tomography
1997 · cited by 122
P-wave travel times show strong lateral variations associated with structural heterogeneity in the crust and mantle.
See more details
More for · 3
Lateral heterogeneity in the upper mantle beneath the Tibetan plateau and its surroundings from SS‐S travel time residuals
2002 · cited by 12
Differential travel times reveal upper mantle lateral heterogeneity and wave speed variations across the Tibetan plateau.
Thermal asymmetry in the Moon's mantle inferred from monthly tidal response.
2025 · cited by 2
Monthly tidal response measurements demonstrate lateral variations in mantle elastic properties and internal structure.
Seismic low-velocity equatorial torus in the Earth's outer core: Evidence from the late-coda correlation wavefield.
2024 · cited by 0
Global coda correlation wavefields show systematic travel time and velocity variations in the outer core depending on wave paths.