| Abstract: | We analyzed RADARSAT-1 synthetic aperture radar (SAR) data to compute interferometric SAR (InSAR) images of surface deformation at Uzon caldera, Kamchatka, Russia. From 2000 to 2003 approximately 0.15 m of inflation occurred at Uzon caldera, extending beneath adjacent Kikhpinych volcano. This contrasts with InSAR data showing no significant deformation during either the 1999 to 2000, or 2003 to 2004, time periods. We performed three sets of numerical source inversions to fit InSAR data from three different swaths spanning 2000 to 2003. The preferred source model is an irregularly shaped, pressurized crack, dipping ???20?? to the NW, 4 km below the surface. The geometry of this solution is similar to the upper boundary of the geologically inferred magma chamber. Extension of the surface deformation and source to adjacent Kikhpinych volcano, without an eruption, suggests that the deformation is more likely of hydrothermal origin, possibly driven by recharge of the magma chamber. Copyright 2006 by the American Geophysical Union. |
| Genre: | Article |
| ProdID: | 70030604 |
| Citation Author: | Lundgren, P.; Lu, Z. |
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| Citation Issue: | 6 |
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| Citation Language: | English |
| Citation Larger Work Title: | Geophysical Research Letters |
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| Citation Search Results Text: | Inflation model of Uzon caldera, Kamchatka, constrained by satellite radar interferometry observations; 2006; Article; Journal; Geophysical Research Letters; Lundgren, P.; Lu, Z. |
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| Citation Volume: | 33 |
| Citation Year: | 2006 |
| Type: | citation/reference |
| Text: | Inflation model of Uzon caldera, Kamchatka, constrained by satellite radar interferometry observations; 2006; Article; Journal; Geophysical Research Letters; Lundgren, P.; Lu, Z. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1029/2005GL025181 |
| Date Other: | Sun, 1 Jan 2006 00:00 -0600 |
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