Triggering of large earthquakes by magma-chamber inflation, Izu Peninsula (Japan)
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
A close spatial and temporal association between three aseismic uplift episodes and subsequent large (M ≈ 7) earthquakes on the Izu Peninsula, Japan, suggests a causal relation. Quaternary geology, as well as studies by other workers, indicates a volcanic origin for the observed uplift, and we use a simple inflation model constrained by leveling data to compute the expected increments in normal and shear stress across faults that ruptured in the earthquakes. Using a Mohr-Coulomb criterion, we find that in two cases out of three, stress changes induced by inflation are in the correct sense to trigger failure. Although changes are no more than a few bars, they represent the equivalent of several decades to a century of secular stress buildup.
Study Area
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Triggering of large earthquakes by magma-chamber inflation, Izu Peninsula (Japan) |
Series title | Geology |
DOI | 10.1130/0091-7613(1982)10<637:TOLEBM>2.0.CO;2 |
Volume | 10 |
Issue | 12 |
Year Published | 1982 |
Language | English |
Publisher | GSA |
Contributing office(s) | Earthquake Science Center |
Description | 4 p. |
First page | 637 |
Last page | 640 |
Country | Japan |
Other Geospatial | Izu Peninsula |
Google Analytic Metrics | Metrics page |