Iliamna 7000 yBP
Start: 7000 yBP [1]
Event Type: Explosive
Max VEI: 4 [2]
Description: From Waythomas and others (1999): "The second of the two fine-grained ash layers found on the Kenai Peninsula is geochemically similar to the proximal lapilli tephra and dates to about 7,000 yr B.P. This ash bed is evidence for an older plinian(?) eruption of Iliamna Volcano but so far no associated volcanic deposits have been identified on the proximal flanks of the volcano."
The Global database on large magnitude explosive volcanic eruptions (LaMEVE; 2017) reports a magnitude of 4.000, bulk eruptive volume of 0.100 cubic km and a dense rock equivalent eruptive volume of 0.040 cubic km for the eruption.
The Global database on large magnitude explosive volcanic eruptions (LaMEVE; 2017) reports a magnitude of 4.000, bulk eruptive volume of 0.100 cubic km and a dense rock equivalent eruptive volume of 0.040 cubic km for the eruption.
References Cited
[1] Preliminary volcano-hazard assessment for Iliamna Volcano, Alaska, 1999
Waythomas, C. F., and Miller, T. P., 1999, Preliminary volcano-hazard assessment for Iliamna Volcano, Alaska: U.S. Geological Survey Open-File Report 99-0373, 31 p., 1 sheet, scale unknown.
full-text PDF 2.84 MB
map sheet plate 1.0 MB [2] Global database on large magnitude explosive volcanic eruptions (LaMEVE), 2012
Crosweller H.S., Arora, B., Brown, S.K., Cottrell, E., Deligne, N.I., Guerrero, N.O., Hobbs, L., Kiyosugi, K., Loughlin, S.C., Lowndes, J., Nayembil, M., 2012, Global database on large magnitude explosive volcanic eruptions (LaMEVE): Journal of Applied Volcanology, v. 1, n. 4, unpaged.[3] Holocene tephrostratigraphy, southern Kenai Peninsula, Lower Cook Inlet, Alaska, 2000
Lemke, K. J., 2000, Holocene tephrostratigraphy, southern Kenai Peninsula, Lower Cook Inlet, Alaska: Utah State University unpublished M.S. thesis, 96 p.Complete Eruption References
Preliminary volcano-hazard assessment for Iliamna Volcano, Alaska, 1999
Waythomas, C. F., and Miller, T. P., 1999, Preliminary volcano-hazard assessment for Iliamna Volcano, Alaska: U.S. Geological Survey Open-File Report 99-0373, 31 p., 1 sheet, scale unknown.
full-text PDF 2.84 MB
map sheet plate 1.0 MB 
Holocene tephrostratigraphy, southern Kenai Peninsula, Lower Cook Inlet, Alaska, 2000
Lemke, K. J., 2000, Holocene tephrostratigraphy, southern Kenai Peninsula, Lower Cook Inlet, Alaska: Utah State University unpublished M.S. thesis, 96 p.