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Brief Report for Kilauea Volcano, southwest rift zone (Class A) No. 2608c
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citation for this record: Cannon, E.C., and Bürgmann, R.Roland, compilers, 2006, Fault number 2608c, Kilauea Volcano, southwest rift zone, in Quaternary fault and fold database of the United States: U.S. Geological Survey website, http://earthquakes.usgs.gov/regional/qfaults, accessed 11/24/2009 06:12 AM.
| Synopsis | General: Kilauea Volcano is the youngest subaerial volcano in Hawai'i. Kilauea's extensional structures include Kilauea's caldera [2608a], the east rift zone [2608b], and the southwest rift zone [2608c]. Two additional fault systems are located to the southeast of Kilauea's caldera: the Koa'e fault system [2609], and the Hilina fault system [2610]. The Koa'e and Hilina fault systems are assigned their own fault numbers rather than grouping these faults into a single extensional feature for Kilauea. Another categorization scheme by Delaney and others (1998 #6939) subdivides Kilauea Volcano into four geographic regions: (1) western south flank and lower southwest rift zone, (2) summit and upper rift zones, (3) middle east rift zone, and (4) central and eastern south flank.
Along the coast and offshore of Kilauea's south flank to the southeast, the Hilina fault system [2610] may define the headscarps to the submarine Hilina slump and subsequent Papa'u sand-rubble flow (see Moore and others, 1989 #6961; Moore and Chadwick, 1995 #6959). Sections: This fault has 3 sections. The sections designated for Kilauea Volcano are Kilauea's caldera [2608a], the east rift zone [2608b], and the southwest rift zone [2608c]. |
| County(s) and State(s) | HAWAII COUNTY COUNTY, HAWAII |
| AMS sheet(s) | Hawaii |
| Physiographic province(s) | HAWAIIAN - EMPEROR ISLAND - SEAMOUNT CHAIN |
| Length (km) | This section is 30 km of a total fault length of 76 km. |
| Average strike | N. 34° E. (for section) versus N. 51 E. (for whole fault) |
| Sense of movement | |
| Dip Direction | NW; SE |
| Historic earthquake | Ka'u earthquake 1868 |
| Most recent prehistoric deformation | Latest Quaternary (<15 ka) |
| Slip-rate category | Greater than 5.0 mm/yr |
| Date and Compiler(s) | 2006 Eric C. Cannon, none Roland Bürgmann, University of California at Berkeley |
