comet banner Volcanic and Magmatic Deformation Portal
Worldwide Database of Volcanic Ground Deformation


Volcano number: 221171
Region: Africa and Red Sea
Country: Ethiopia
Geodetic measurements? Yes
Deformation observation? Yes
Measurement method(s): InSAR
Duration of observation: 1997-2000, 2004-2010
Inferred cause of deformation: Uncertain
Characteristics of deformation:

Between June and December 2007 3-5 cm of uplift was observed at Halebeti, a volcanic edifice names in Biggs et al. (2011), located ~10 km south of Hertali.
The deformation pattern is sharply cut off on the western side. Biggs et al. (2011) suggests that this indicates fault-controlled deformation, or an intrusion associated with dipping structure. The deformation pattern has been fit by a sill 5.8 x 8 km, at a depth of 2.7-8.8 km.
Following December 2007 5.4 cm of subsidence occurred over >1000 days, after which there is no data.

References: 'Biggs, J., I. D. Bastow, D. Keir, and E. Lewi (2011), Pulses of deformation reveal frequently recurring shallow magmatic activity beneath the Main Ethiopian Rift, Geochem. Geophys. Geosyst., 12, Q0AB10, doi:10.1029/2011GC003662.'
Location: 40.33, 9.78