Observations of Deformation
| Volcano number: | 312130 |
|---|---|
| Region: | Alaska |
| Country: | United States |
| Geodetic measurements? | Yes |
| Deformation observation? | Yes |
| Measurement method(s): | InSAR |
| Duration of observation: | 1992 - 2010 |
| Inferred cause(s) of deformation: | Magmatic |
| Characteristics of deformation: | Between 1996 and 1998, more than 20 cm of inflation was observed at Mount Peulik. Peak deformation rates were observed in Autumn of 1997. The total volume of inflation was ~0.06 km³ and is modelled by a point source at a depth of ~7 km beneath the center of Ugashik caldera. Deformation was aseismic and is thought to be due to gradual magma accumulation near to the brittle-ductile transition. |
| Reference(s): | Lu, Z., Moran, S. C., Thatcher, Wayne, Wicks, C. J., Dzurisin, D., and Power, J. A., 2002, Magmatic inflation at a dormant stratovolcano: 1996-1998 activity at Mount Peulik volcano, revealed by satellite radar interferometry: Journal of Geophysical Research, v. 107, n. 7, p. 4-13. |
| 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=Ugashik-Peulik | |
| Location: | 57.751, -156.368 |
| REST API endpoint (JSON): | https://comet.nerc.ac.uk/wp-json/volcanodb/v1/volcano/834 |