Fast determination of attenuation from microseismicity for large datasets

Title:

Fast determination of attenuation from microseismicity for large datasets

Creator:

Wcislo , Milosz and Eisner , Leo

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:488ac272-e7b8-417b-a8c6-7e7c0c1412f5
uuid:488ac272-e7b8-417b-a8c6-7e7c0c1412f5
doi:10.13168/AGG.2019.0022

Subject:

seismic attenuation, body waves, induced seismicity, and Fourier analysis

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

We develop a robust and automatic determination of peak frequencies of direct wave arrivals from microseismic events using mirror image of the recorded signal. These peak frequencies can be then used to evaluate attenuation quality factor (Q). We propose to use procedure that consists of automatic determination of the peak frequencies in combination with matched filter to facilitate selection of suitable events. Using both natural and induced seismicity datasets, we show that matched filter detection along with automatic determination of the peak frequencies gives consistent values of quality factor when compared with manual processing. Proposed technique significantly reduces processing time making it a suitable tool in attenuation analysis of large datasets.

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Coverage:

257-268

Source:

Acta geodynamica et geomaterialia : | 2019 Volume:16 | Number:3 (195)

Harvested from:

CDK

Metadata only:

false