We have developed a novel regularized approach to estimate a composite focal mechanism
for microseismic events that share a similar source mechanism. The method operates by …

Estimating the mechanisms of small (M< 4) earthquakes is quite challenging. A common
scenario is that neither the available polarity data alone nor the well predictable near-station …

We use three-component S waves together with P waves from microearthquakes in an
isolated intraplate sequence in Arkansas, USA, to determine individual focal mechanisms …

Focal mechanisms of earthquakes with magnitudes M w 4.0 and less recorded by a sparse
seismic network are usually poorly constrained due to the lack of an appropriate method …

Improving the knowledge of seismogenic faults requires the integration of geological,
seismological, and geophysical information. Among several analyses, the definition of …

A practical method of determining focal mechanisms suitable for microearthquakes was
designed and its characteristics were investigated. The method consists of three parts:(1) …

This paper reviews the mathematical tools used for describing microseismic source
mechanisms. In addition, based on analysis of synthetic seismograms we develop and …

We introduce a new method for determining earthquake focal mechanisms from P-wave first-
motion polarities. Our technique differs from previous methods in that it accounts for possible …

Determining the focal mechanism of earthquakes helps us to better define faults and
understand the stress regime. This technique can be helpful in the oil and gas industry …

The seismic focal mechanism (FM) is an effective property to indicate source physics, as well
as stress and strain distribution in regional, local, and microscales. We have developed an …