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The Missouri to Massachusetts Broadband Seismometer Experiment

Abstract: In the MOMA experiment, 18 broadband seismometers were deployed
between permanent IRIS/GSN stations CCM (Cathedral Caves, Missouri)
and HRV (Harvard,Massachusetts), providing a linear 20-station array
spanning 1740 km. The goal of the experiment was to obtain new
information about the structure of the core-mantle boundary (CMB), the
structure of the crust and mantle beneath the eastern U.S. (including
mantle discontinuities, mantle anisotropy, and lateral velocity
variations), and the structure of subducting lithospheric slabs.
Geographic Coverage
Spatial coordinates   
  N: 42.5   S: 37.5   E: -71.25   W: -91.25

Data Set Citation
Dataset Originator/Creator: Karen Fischer, Brown University; Michael Wysession, Washington University; Timothy Clarke, New Mexico Tech
Dataset Title: The Missouri to Massachusetts Broadband Seismometer Experiment
Dataset Publisher: IRIS > Incorporated Research Institutions for Seismology
Version: Not provided
Temporal Coverage
Start Date: 1995-01-20
Stop Date: 1996-04-12
Seismometers Ancillary Description
Quality Please note that the CMG-3T instrument responses in the data archived
at the DMC were incorrect through August of 1998. All instrument
responses are now correct.

Data gaps related to low station power occurred at many
sites,particularly during the winter months due to snow and ice
accumulations on solar panels. Data gaps due to DAS failures were not
Access Constraints None
Use Constraints Please cite the data properly.
Data Set Progress
Data Center
PASSCAL Instrument Center, Incorporated Research Institutions for Seismology Supplemental Info
Data Center URL:

Data Center Personnel
Phone: (505) 835-5070
Fax: (505) 835-5079
Email: passcal at
Contact Address:
PASSCAL Instrument Center
New Mexico Tech
100 East Road
City: Socorro
Province or State: NM
Postal Code: 87801
Country: USA
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Distribution Format: SEED
Phone: 401-863-1360
Email: Karen_Fischer at Brown.EDU
Contact Address:
Geological Sciences Department
Brown University
Box 1846
City: Providence
Province or State: Rhode Island
Postal Code: 02912-1846
Country: USA
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2001-03-31
Last DIF Revision Date: 2018-07-30