Department of Gravimetry and Geodynamics

Web page of the Department of Earth Science Institute SAS

Gravity changes observed around Teide (Tenerife) between May 2004 and July 2005, due to the suspected reawakening of the volcano, were reinterpreted by us. Our objective was to seek multiple sources of the observed gravity signal. Our interpretation is based on the decomposition of the gravity signal into shallow and deep fields, and subsequent inversion of each field by means of 3D line segments. The shallow (near-surface) segments are interpreted as hydrothermal fluids. A short deep segment was found at the depth of about 6 km below sea level, interpreted as magma injection. Our results indicate that the 2004 volcanic unrest at the Central Volcanic Complex of Tenerife was a failed eruption.