Seismic evidence for a crustal magma reservoir beneath the upper east rift zone of Kilauea volcano, Hawaii
Geology
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Abstract
An anomalous body with low Vp (compressional wave velocity), low Vs (shear wave velocity), and high Vp/Vs anomalies is observed at 8–11 km depth beneath the upper east rift zone of Kilauea volcano in Hawaii by simultaneous inversion of seismic velocity structure and earthquake locations. We interpret this body to be a crustal magma reservoir beneath the volcanic pile, similar to those widely recognized beneath mid-ocean ridge volcanoes. Combined seismic velocity and petrophysical models suggest the presence of 10% melt in a cumulate magma mush. This reservoir could have supplied the magma that intruded into the deep section of the east rift zone and caused its rapid expansion following the 1975 M7.2 Kalapana earthquake.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Seismic evidence for a crustal magma reservoir beneath the upper east rift zone of Kilauea volcano, Hawaii |
| Series title | Geology |
| DOI | 10.1130/G35001.1 |
| Volume | 42 |
| Issue | 3 |
| Year Published | 2014 |
| Language | English |
| Publisher | Geological Society of America |
| Contributing office(s) | Volcano Hazards Program, Volcano Science Center |
| Description | 4 p. |
| First page | 187 |
| Last page | 190 |
| Country | United States |
| State | Hawaii |
| Other Geospatial | Kilauea volcano |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |