Surface wave radiation.

Slides:

Advertisements

Similar presentations

A controlled-source experiment to investigate the origin of wavefield polarization in fault zones Giuseppe Di Giulio 1, Antonio Rovelli 2, Fabrizio Cara.

Advertisements

Group Velocity Dispersion Curves from Wigner-Ville Distributions Simon Lloyd 1, Goetz Bokelmann 1, Victor Sucic 2 1 University of Vienna 2 University of.

Upper mantle of the Bohemian Massif (Central Europe) studied by surface waves from Kurile Islands M8.1 and M8.3 earthquakes Petr Kolinsky Jiri Malek Institute.

Can we image melt with seismic surface waves? Don Forsyth, with very extensive help from Yingjie Yang, Rob Dunn and Dayanthie Weeraratne 1.Powerful new.

Predicting Global Perovskite to Post-Perovskite Phase Boundary Don Helmberger, Daoyuan Sun, Xiaodong Song, Steve Grand, Sidio Ni, and Mike Gurnis.

Günther Zängl, DWD1 Improvements for idealized simulations with the COSMO model Günther Zängl Deutscher Wetterdienst, Offenbach, Germany.

Multi-parameter investigations at Fuego and Santiaguito volcanoes

Seismic Wave Demonstrations and Animations L. Braile, Purdue University  Copyright L. Braile. Permission.

Seismic Wave Demonstrations and Animations L. Braile, Purdue University  Copyright L. Braile. Permission.

Size of earthquakes. MODIFIED MERCALLI SCALE Defines the INTENSITY of an earthquake by the amount of damage caused.

Global Distribution of Crustal Material Inferred by Seismology Nozomu Takeuchi (ERI, Univ of Tokyo) (1)Importance of Directional Measurements from geophysicists’

Thermal structure of old continental lithosphere from the inversion of surface-wave dispersion with thermodynamic a-priori constraints N. Shapiro, M. Ritzwoller,

Seismic Waves Types of Wave Propagation. Body Waves P & S Waves P and S waves are often called body waves because they propagate outward in all directions.

How and Where Do Earthquakes Occur?

Journal Club 17/03/2015 Uncertainty loops in travel-time tomography from nonlinear wave physics. Erica Galetti et al. Phys. Rev. Lett., 114, (2015)

VLPULPSPSonicGeodesy McNamara and Buland (2004) BSSA.

Tsunamis and Tsunami Detection Systems December 1, 2010 Physical Oceanography Presentation Jeana Drake.

Larsen et al. (2009) EOS 2008 eruption of Okmok.

Summary of triggering of non- volcanic tremor in Cascadia Justin Rubinstein.

Seismic Sources. Unconventional Sources Earthquakes Quarry Blasts Ambient Noise (trains, traffic) Hawman et al., 1999.

Wave Type (and names) Particle MotionOther Characteristics P, Compressional, Primary, Longitudinal Dilatational Alternating compressions (“pushes”) and.

(50°) B D 1, N 2 N 1, D 2.

Application of empirical Green’s functions for the construction and validation of the GBCVM Morgan P. Moschetti and Michael H. Ritzwoller Center for Imaging.

-for saving innocent lives

Geology 5640/6640 Introduction to Seismology 9 Feb 2015 © A.R. Lowry 2015 Last time: Data: Raypaths and Phase Arrivals Phase arrivals are commonly denoted.

Seismology – Lecture 2 Normal modes and surface waves Barbara Romanowicz Univ. of California, Berkeley CIDER Summer KITP.

An array analysis of seismic surface waves

Detecting temporal velocity changes using various methods Haijiang Zhang University of Science and Technology of China.

Surface waves Earthquakes generate both body waves (P, S) and surface waves Surface waves are generated along any free surface in the medium In the Earth,

Recent plume modelling work – NCAS Leeds Ralph Burton, Stephen Mobbs, Alan Gadian In the following, WRF has been configured with a “volcano” represented.

Observation of diffuse seismic waves at teleseismic distances

Earthquake source parameters inferred from teleseismic source time functions Orfeus Workshop “Waveform Inversion” June, 19th, 2008 Martin Vallée and Jean.

Global seismic tomography and its CIDER applications Adam M. Dziewonski KITP, July 14, 2008.

T Nov 11, Sino-US Workshop, Boulder1 Mike Ritzwoller 1 Ying Yang 1 Morgan Moschetti 1 Fan-Chi Lin 1 Greg Bensen 1 Xiaodong Song 2 Sihua Zheng.

Relative Teleseismic Surface Wave Attenuation using Transportable Array Data Team QDP ON Austin Holland, Joshua Richardson, Weisen Shen, Paul Ogwari.

Surface-wave Derived Focal Mechanisms in Mid-America R. B. Herrmann 1, C. J. Ammon 2 and H. M. Benz 3 1 Saint Louis University, 2 Pennsylvania State University,

HIGH FREQUENCY GROUND MOTION SCALING IN THE YUNNAN REGION W. Winston Chan, Multimax, Inc., Largo, MD W. Winston Chan, Multimax, Inc., Largo, MD Robert.

1 Wavefield Calibration Using Regional Network Data R. B. Herrmann Saint Louis University.

Aron Azaria (M.S. student)

What is a seismic wave and how is it similar to any other type of wave?

Shear velocity of olivine Data from Kumazawa & Anderson [1969] Seismic Anisotropy.

Environmental and Exploration Geophysics II tom.h.wilson Department of Geology and Geography West Virginia University Morgantown, WV.

Velocity and Attenuation in the Eastern Bay Area and the Delta Donna Eberhart-Phillips UC Davis USGS Delta workshop 10 Sept 2015.

Photos placed in horizontal position with even amount of white space between photos and header Sandia National Laboratories is a multi-program laboratory.

EaRtHqUaKeS!. More than 700 Earthquakes that are strong enough to cause damage occur every year. Earthquakes are caused by stress applied to rocks from.

1 SITE RESPONSE ANALYSIS USING MICROTREMORS Boğaziçi University Kandilli observatory and Earthquake Research Institute Department of Geophysics Korhan.

SPICE Research and Training Workshop III, July 22-28, Kinsale, Ireland Seismic wave Propagation and Imaging in Complex media: a European.

Earthquake Seismology Review

Susan L. Beck George Zandt Kevin M. Ward Jonathan R. Delph.

Full-3D Tomography of Crustal Structure in Central California

Introduction to Seismology

Frequency dependent microseismic sources

Substorm current wedge, Alfven waves, ion injections, Pi2 pulsations, and ion outflows: A THEMIS look The THEMIS team.

Lithosphere Delamination and Small-Scale Convection Beneath California Imaged with High Resolution Rayleigh Wave Tomography Donald W. Forsyth and Yingjie.

Time domain & frequency domain

1-D Mississippi embayment sediment velocity structure and anisotropy: constraint from ambient noise analysis on a dense array Chunyu,Liu1; Charles A. Langston1.

Université Joseph Fourier Grenoble, France

MEE …. WAVE PROPAGATION IN SOLIDS

Component: E Local quakes Broad frequency Two tremor bursts

Basic info Kaijian Liu Rice University 5th year graduate student

Newtonian Noise Mitigation by Using Superconducting Gravity Gradiometers Ho Jung Paik Department of Physics University of Maryland ICGAC-XIII, Seoul.

Speech Pathologist #10.

Comparison of Seismic and Well Data

Processing and Binning Overview

Horizontal plane projections of the endpoint force response to perturbations in several directions. Horizontal plane projections of the endpoint force.

Asthenosphere flow and mantle lithosphere instabilities below continental rifts and rifted margins Jolante van Wijk (University of Houston) Jeroen van.

Andy Nyblade, Penn State University

by Hiro Nimiya, Tatsunori Ikeda, and Takeshi Tsuji

Presentation transcript:

Surface wave radiation

Larsen et al. (2009) EOS 2008 eruption of Okmok

strong tremor OKWE RSAM 7/137/207/278/038/108/17 amplitude (arb. units) Okmok eruption seismicity

VLP tremor during Okmok eruption VLP tremor has been previously reported by De Lauro et al. (2005) at Stromboli

Stations used for tremor analysis

Comparison of Amplitude Spectra

OKSOz-OKFGz inter-station times

Histograms of 10 inter-station times

Tremor located NNW of Cone D Haney (2010) JGR, in press

new coneCone D caldera rim northsouth

Similar phase velocity for Love waves, so a similar inter-station time expected

Horizontal components Not similar to ZZ or RR Sign flip on OKFGt

Radiation pattern for a vertical CLVD Azimuth constrained by Love waves, source depth by Rayleigh waves

Rayleigh radiation: VLP tremor depth

approx. edge of caldera Masterlark, Haney, et al. (2010) JGR Ambient noise tomography of Okmok

Radiation pattern for a vertical CLVD Haney (2010) JGR, in press