Observations of Deformation

Volcano number:221171
Geodetic measurements?Yes
Deformation observation?Yes
Measurement method(s):InSAR
Duration of observation:1997-2000, 2004-2010
Inferred cause(s) 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.

Reference(s):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:9.78, 40.33
REST API endpoint (JSON):https://comet.nerc.ac.uk/wp-json/volcanodb/v1/volcano/165

Latest Sentinel-1 Data

Filename: hertali_087A_08102_131312.jpg
Size: 501px x 663px (159.67 KB)
Filename: hertali_087A_08102_131311.jpg
Size: 736px x 1110px (286.76 KB)
Filename: hertali_079D_08094_131313.jpg
Size: 501px x 672px (166.54 KB)