|Region:||Kamchatka and Mainland Asia|
|Duration of observation:||1992 to 2003; 2008 to 2010|
|Inferred cause of deformation:|
|Characteristics of deformation:|
The eruption at Kizimen volcano began around mid-November of 2010, and finished on December 9th 2012. There is no ground-based deformation monitoring network on Kizimen volcano due to its remoteness, persistently inclement weather, and difficult logistics.
More than 6 cm of surface displacement in the satellite’s line-of-sight (LOS) direction is mapped from multi-temporal InSAR images acquired from 2008 to 2010 (Ji et al., 2013). The authors “preferred explanation is that a magma-filled dike intruded beneath volcano, causing a broad pattern of surface deformation and eventually triggering the eruption that began in mid-November 2010”.
The authors model the deformation with “20 cm of opening of a nearly vertical dike […] The model dike is approximately 14 km long, 10 km high, centered 13 km beneath Kizimen, and strikes NE–SW. Time-series analysis of multi-temporal interferograms indicates that (1) intrusion started sometime between late 2008 and July 2009, (2) continued at a nearly constant rate, and (3) resulted in a volume expansion of 3.2 × 107 m3 by September 2010, i.e., about two months before the onset of the 2010 eruption”.
|Reference:||Smithsonian Institution Global Volcanism Program |
|Reference:||Ji, L., Z. Lu, D. Dzurisin, and S. Senyukov (2013), Pre-eruption deformation caused by dike intrusion beneath Kizimen volcano, Kamchatka, Russia, observed by InSAR, J. Volc. Geother. Res., 256, 87-95, doi:10.1046/j.1365-246X.2000.00218.x.|
|Reference:||Pritchard, M. E., & Simons, M. (2004). Surveying volcanic arcs with satellite radar interferometry: The central Andes, Kamchatka, and beyond. GSA Today, 14(8), 4-11.|
GSA Data Repository Item 2004139. Tables DR1 and DR2 and Figures DR1–DR3, is available on request from Documents Secretary, GSA, P.O. Box 9140, Boulder, CO 80301-9140, USA, firstname.lastname@example.org, or at www.geosociety.org/pubs/ft2004.htm
Image of Kizimen volcano. Source: Smithsonian Institution Global Volcanism Program