COSMOS StrongMotion VIRTUAL DATA CENTER http:db'cosmoseq'org

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COSMOS Strong-Motion VIRTUAL DATA
CENTERhttp//db.cosmos-eq.org

• Professor Ralph J. Archuleta
• Associate Research Seismologist Jamison Steidl
• Programmer Mindy Squibb
• Institute for Crustal Studies, University of
  California, Santa Barbara

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Content

• 500 earthquakes
• 2900 stations
• 24,000 observation records
• Strong-motion only, gt5.0 Magnitude is highly
  seismic areas
• Store only metadata and URI to data file

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Users

• Structural engineers
• Seismologists
• Students
• 1/4 of users international
• In U.S. half commercial, half academic
• Users usually are sophisticated - use c or Matlab

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Data providers

• U.S. and international
• Universities, government agencies, private firms
• Provide access to their ftp/http servers
• We have separate contracts with each. Most do
  not want us to house their data.
• Data available as 80-byte ASCII flat files

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COSMOS Virtual Data Center
Searchable parameters are pulled from the
original data files Data files remain with the
owners
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Search Options

• Clickable Map
• Earthquake List
• Station List
• Search Parameters

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Parkfield
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Response Spectra

• Overlay Type
• UBC 1997
• IBC 2000
• generic
• Display options
• Select damping
• Units in g or cm/s/s
• Select period range
• Scale data

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Processing
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CosmosConverter Tool

• Downloadable
• AutoUpdating
• Preview data
• Export data as
• text
• plot
• Export header
• html
• Export both
• xml
• cosmos format
• SMC
• SAC