Observations of Deformation
| Volcano number: | 311060 |
|---|---|
| Region: | Alaska |
| Country: | United States |
| Geodetic measurements? | Yes |
| Deformation observation? | Yes |
| Measurement method(s): | InSAR |
| Duration of observation: | 2004 - 2010 |
| Inferred cause(s) of deformation: | Surface deposits, Uncertain |
| Characteristics of deformation: | Semisopochnoi island, encompassing Mount Cerebus, subsided suring th period 2004 – 2010. Maximum rates of ~1 cm/yr are observed at Mount Cerebus, with the rest of the island subsiding at lesser rates. Downward motion is thought to include a component of horizontal motion. Deformation is though to reflect thermoelastic contraction of lava flows, mechanical compaction and gravitational sliding. |
| Reference(s): | Lu, Z., and Dzurisin, D., 2014, InSAR imaging of Aleutian volcanoes: Chichester, UK, Springer-Praxis, 390 p. |
| U.S. Geological Survey Alaska Volcano Observatory (AVO) website http://www.avo.alaska.edu/volcanoes/volcinfo.php?volcname=Semisopochnoi | |
| Location: | 51.93, 179.58 |
| REST API endpoint (JSON): | https://comet.nerc.ac.uk/wp-json/volcanodb/v1/volcano/1051 |