Sections
Personal tools
Log in


Forgot your password?
 

AGU Fall Meeting 2006

Rotational Motions in Seismology

Seismology is based primarily on the observation and modelling of three-component translational ground motions. Nevertheless, theoretical seismologists (e.g., Aki and Richards, 1980, 2002) have argued for decades that the rotational part of ground motions should also be recorded. It is well known that standard seismometers are sensitive to rotations (just like tiltmeters are sensitive to translations). The lack of observations of rotational motions was mainly due to the limited resolution of rotation sensors. However, in the past few years ring lasers, fibre-optic gyros, and other measurement devices have led to the first significant and consistent observations of rotational motions suggesting that complete six-component measurements may be possible in the near future. Accurate measurements of rotational motions may have implications for (1) recovering the complete displacement history from seismometer recordings; (2) further constraining rupture properties; (3) extracting subsurface properties; and (4) providing additional information to earthquake engineers. The goal of this session is to discuss measurement devices, observations, modelling, theoretical aspects and potential applications of rotational ground motions. The session will be accompanied by the installation of an International Working Group on Rotational Seismology that aims at promoting investigations of all aspects of rotational motions in seismology and their implications for related fields such as earthquake engineering, geodesy, strong-motion seismology, tectonics, etc., and to share experience, data, software, and results in an open web-based environment. Further information can be found at www.rotational-seismology.org.

Chairs: H. Igel, M. Todorovska, W.H.K. Lee

Summary of Abstracts for Seismology Session S05:

Rotational motions in seismology


Ref. No
(Status)

Authors

Title

Sec/
Sp.Ses

Poster
Request

Type

View
Abstract

13
(Submitted)

E Grekova
M Kulesh
G Herman
I Shardakov

Modeling of the Propagation of Seismic Waves in Non-Classical Media: Reduced Cosserat Continuum

S/S05

Poster Request

C

Abstract

166
(Submitted)

T Tobita
S Sawada

Rotation Response of a Rigid Body Under Seismic Excitation

S/S05


C

Abstract

1671
(Submitted)

Z Zembaty

Stochastic modeling of rocking seismic ground motion and respective structural load modeling

S/S05


C

Abstract

2947
(Submitted)

V Graizer

Tilts in strong-ground motion

S/S05


I

Abstract

3562
(Submitted)

B Huang
C Liu
C Lin
C Wu
W Lee

Measuring Mid- and Near-Field Rotational Ground Motions in Taiwan

S/S05

Poster Request

I

Abstract

3620
(Submitted)

L Godinho
A Tadeu
F Sanchez-Sesma
A Cadena-Isaza

Amplification of Ground Motion Rotations by Local Geology

S/S05


C

Abstract

3818
(Submitted)

K Schreiber
H Igel

Sagnac Interferometry for the Determination of Rotations in Seismology

S/S05


I

Abstract

3985
(Submitted)

P Robert
V Jean

Seismic Rotations Observed with Inertial Seismic Sensors

S/S05

Poster Request

C

Abstract

6178
(Submitted)

R Nigbor
J Evans
T Hansen

Laboratory and Field Testing of two Rotational Seismometer Models

S/S05


I

Abstract

7182
(Submitted)

H Igel
U Schreiber
A Cochard
J Wassermann
B Schuberth
W Suryanto
A Velikoseltsev

Broadband Rotational Ground Motions: Observations And Modelling

S/S05


C

Abstract

7220
(Submitted)

S Lehndorfer
W Suryanto
N Dinh
A Cochard
J Wassermann
H Igel
U Schreiber

Observations Of Rotational Motions Around Vertical And Horizontal Axes: Comparison With Translations

S/S05


C

Abstract

7250
(Submitted)

J Hautmann
R Barsch
J Wassermann
H Igel
A Velikoseltsev
U Schreiber

Towards A Global Network Of Rotation Sensors

S/S05

Poster Request

C

Abstract

7300
(Submitted)

N Dinh
W Suryanto
H Igel
A Cochard
A Velikoseltsev
U Schreiber

Rotational Signals In The P Coda

S/S05


C

Abstract

7327
(Submitted)

H Wang
H Igel
A Cochard
M Ewald

Source- And Basin-Related Effects On Ground Rotational Motions: A Synthetic Study

S/S05


C

Abstract

9384
(Submitted)

M Todorovska

Rotational Ground Motions Radiated by Vibrating Structures

S/S05


C

Abstract

9570
(Submitted)

G Emore
J Haase
K Larson
S Miyazaki

Sensitivity of Earthquake Fault Slip Reconstructions to Errors in Seismic Displacement Records

S/S05


C

Abstract

9843
(Submitted)

J Fletcher
P Spudich

Seismic Rotations and Strains at UPSAR from the September 28, 2004, M6 Parkfield Earthquake

S/S05

Poster Request

C

Abstract

11108
(Submitted)

D Aldridge
N Symons
M Haney

3D Finite-Difference Numerical Simulations in Seismic Gradiometry

S/S05

Poster Request

C

Abstract

11212
(Submitted)

R Boroschek

Engineering Implications of Rotational Sensitivity of Translational Accelerometers

S/S05


C

Abstract

11216
(Submitted)

R Cowsik
K Wagoner
A Sircar

A New Instrument of Direct Observations of Torsional Normal Mode Oscillation of the Earth


S/S05


C

Abstract

11615
(Submitted)

G Sasagawa
T Hansen
F Vernon
U Schreiber
H Igel
A Velikoseltsev

The rotation sensor at Pinon Flat Observatory

S/S05

Poster Request

C

Abstract

Document Actions