Imaging of Earthquake Sources Using Elastic Waves
{'Code': '06030204', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'EAR', 'LongName': 'Division Of Earth Sciences'}}
{'SignBlockName': 'Patricia Brooking', 'PO_EMAI': 'pbrookin@nsf.gov', 'PO_PHON': '7032924728'}
As part of previous NSF supported research (EAR 85-07929),                     software was developed for reverse-time extrapolation of                        elastic waves.  This was done in the context of imaging of                      Earth structure, but, the same concepts may also be directly                    applied to imaging of earthquake sources.  Exiting studies of                   earthquake imaging use the acoustic wave equation, so that only                 P-waves are considered.  Thus, the ability now exists to produce                concurrent images of both the P and S waves by extrapolating                    the observations with the elastic wave equation and this is the                 goal of the proposed research.
{'FirstName': 'George', 'LastName': 'McMechan', 'PI_MID_INIT': 'A', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'George A McMechan', 'EmailAddress': 'mcmec@utdallas.edu', 'NSF_ID': '000375328', 'StartDate': '07/01/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Texas at Dallas', 'CityName': 'RICHARDSON', 'ZipCode': '750803021', 'PhoneNumber': '9728832313', 'StreetAddress': '800 WEST CAMPBELL RD.', 'StreetAddress2': 'SP2.25', 'CountryName': 'United States', 'StateName': 'Texas', 'StateCode': 'TX', 'CONGRESSDISTRICT': '32', 'CONGRESS_DISTRICT_ORG': 'TX32', 'ORG_UEI_NUM': 'EJCVPNN1WFS5', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF TEXAS AT DALLAS', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1574', 'Text': 'Geophysics'}
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