ScholarLens Back to search
2006•Inland EarthquakeRequires access

THE SYSTEM CLUSTER ANALYSIS OF THE FOCAL MECHANISM SOLUTIONS ABOUT SMALL EARTHQUAKES IN JIASHI STRONG EARTHQUAKE SWARM FROM 1997 TO 1998

Nie Xiao-hong

Open publisher page 0 citations

Abstract

Using the method of the maximum amplitude ratio P/S to calculate the focal mechanism solutions of small earthquakes with M_S2.5～3.7 in Jiashi strong earthquake swarm from 1997 to 1998.By the system cluster analysis of the focal mechanism solutions of these small earthquakes,the result showed that small earthquakes of Jiashi are mainly by strike-slip and normal dip-slip fault.They are similar fault with strong earthquakes with M_S6 at the same time in Jiashi swarm.The P axis of the principle compression stress for small earthquakes in 1997 is oriented mainly to NE or nearly NS.And it is consistent with the strong earthquakes with M_S6 from 1997 to 1998.And there appears some phenomena of empty segment before the two earthquakes belong to normal dip-slip fault with M_S6.4 in April 6,1997 and with M_S6.1 in August 2,1998.

About this research paper

What this paper is about

Using the method of the maximum amplitude ratio P/S to calculate the focal mechanism solutions of small earthquakes with M_S2.5～3.7 in Jiashi strong earthquake swarm from 1997 to 1998.By the system cluster analysis of the focal mechanism solutions of these small earthquakes,the result showed that small earthquakes of Jiashi are mainly by strike-slip and normal dip-slip fault.They are similar fault with strong earthquakes with M_S6 at the same time in Jiashi swarm.The P axis of the principle compression stress for small earthquakes in 1997 is oriented mainly to NE or nearly NS.And it is consistent with the strong earthquakes with M_S6 from 1997 to 1998.And there appears some phenomena of empty segment before the two earthquakes belong to normal dip-slip fault with M_S6.4 in April 6,1997 and with M_S6.1 in August 2,1998.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Using the method of the maximum amplitude ratio P/S to calculate the focal mechanism solutions of small earthquakes with M_S2.5～3.7 in Jiashi strong earthquake swarm from 1997 to 1998.By the system cluster analysis of the focal mechanism solutions of these small earthquakes,the result showed that small earthquakes of Jiashi are mainly by strike-slip and normal dip-slip fault.They are similar fault with strong earthquakes with M_S6 at the same time in Jiashi swarm.The P axis of the principle compression stress for small earthquakes in 1997 is oriented mainly to NE or nearly NS.And it is consistent with the strong earthquakes with M_S6 from 1997 to 1998.And there appears some phenomena of empty segment before the two earthquakes belong to normal dip-slip fault with M_S6.4 in April 6,1997 and with M_S6.1 in August 2,1998.

Key concepts: Seismology, Focal mechanism, Earthquake swarm, Slip (aerodynamics), Swarm behaviour, Geology, Fault (geology), Induced seismicity

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
THE SYSTEM CLUSTER ANALYSIS OF THE FOCAL MECHANISM SOLUTIONS ABOUT SMALL EARTHQUAKES IN JIASHI STRONG EARTHQUAKE SWARM FROM 1997 TO 1998 — Research Paper | ScholarLens