Seismological exploration of the Milos geothermal reservoir, Greece

Journal Article · Sun Jan 01 00:00:00 EST 1989 · Geothermics; (USA)

DOI:https://doi.org/10.1016/0375-6505(89)90057-6· OSTI ID:5276908

Ochmann, N; Hollnack, D; Wohlenberg, J ^[1]

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1. Technische Hochschule Aachen (Germany, F.R.)

Monitoring the natural seismicity of Milos island over a four month period led to the conclusion that the microseismic activity is concentrated mainly in the central-eastern part of the island in the depth range from 5-8 km. Tomographic inversion of 90 selected events led to a refined velocity-depth distribution. The fluctuation of velocities appears to be depth-dependent; a remarkable horizontal change of velocities was found for the upper few kilometres of the crust, while at greater depths the crustal velocity is more homogeneous. Faultplane solutions indicate that tensional stress in a NE-SW direction is the actual cause of the seismic activity. The frequency-magnitude relation indicates tectonic activities rather than volcanic.

• OSTI ID: 5276908
• Journal Information: Geothermics; (USA), Vol. 18:4; ISSN 0375-6505
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
58 GEOSCIENCES
GEOTHERMAL FIELDS
EXPLORATION
GEOTHERMAL WELLS
SEISMOLOGY
GREECE
DEPTH
MONITORING
TECTONICS
TOMOGRAPHY
DEVELOPING COUNTRIES
DIAGNOSTIC TECHNIQUES
DIMENSIONS
EASTERN EUROPE
EUROPE
WELLS
150301* - Geothermal Exploration & Exploration Technology- Geophysical Techniques & Surveys
150303 - Geothermal Exploration & Exploration Technology- Exploratory Drilling & Well Logging
580000 - Geosciences