Center for Engineering Strong Motion Data (CESMD) Update

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Center for Engineering Strong Motion Data
(CESMD) Update
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CESMD Objectives and Operation

• Established as part of CISN in 2006 as joint
  effort of US Geological Survey and California
  Geological Survey
• Collect, archive, and disseminate records of
  ground and structural responses to earthquake
  strong motions of engineering interest
• Internet Quick Reports (IQR) of strong motion
  data within minutes for rapid response to
  earthquakes
• Provide information about station, site, geology,
  etc.
• Provide online search access to CESMD archive
  principally for US data also called Engineering
  Data Center (EDC)
• Provide integrated search and virtual access to
  global strong-motion records through the Virtual
  Data Center (VDC)

CISN Advisory Steering Committees Meeting
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Two Components of CESMD
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Automated Import of Records to IQR

• Task
• Records from CISN and other networks, each with a
  variety of instrument types
• Provide a coherent presentation of strong motion
  records, with Quality Assurance
• Full records, ShakeMap uses peak values
• Automated processing and import of CISN
  strong-motion records

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CESMD Internet Quick Report (IQR)for US Data

• For earthquakes in CISN region, records are
  available via IQR automatically within minutes
  after Mgt3.5 earthquakes, records w/ PGAgt0.5g
• 78 automatically generated IQR in 2012

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Small Records Served via FTP

• Small records (Mlt3.5, and Mgt3.5 with PGAlt0.005g)
• FTP(ftp//140.174.65.75/Small_Record_and_Earthqua
  kes)
• Users can access this ftp site through the link
  named Small Records FTP in the EDC search page
• Records from 128 earthquakes in 2012 in FTP

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New Face of the Strong-Motion Virtual Data
Center (VDC)

• VDC has been incorporated into CESMD (originally
  developed at UCSB)
• Metadata upload process now uses standard
  format, is more automated
• VDC has been updated with the addition of M5.0
  US and New Zealand records since 2007
• COSMOS promotes international SM networks making
  data available to VDC, development of global
  metadata standards

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Japan K-NET and KiK-net records now in VDC
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VDC Projects in Progress

• Software completed to convert Japanese K-NET and
  KiK-net data for uploading record metadata
  uploading to VDC now underway (records from 24
  earthquakes already uploaded)
• Criteria Mgt5, at least 1 comp gt 10g, depthlt100
  km
• Only M9 strong motion records that exist
• Collaborating with ITACA (Italian Accelerometric
  Archive) to finalize conversion of ITACA records
  to COSMOS format
• Interacting with other strong-motion networks
  internationally to develop protocols for serving
  their data through the VDC
• Partnering with COSMOS to develop new tools for
  VDC, establish standards for data and metadata
  quality control

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CESMD ArchiveNo. of Earthquakes vs Magnitude
Records from 296 earthquakes with Mgt4.0 in CESMD
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CESMD ArchiveNo. of Records vs Magnitude
About 9270 station records from earthquakes with
Mgt4.0 in CESMD
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• CESMD Summary
• Provides access to strong-motion data of
  engineering interest from CISN, the US and other
  seismically active countries
• The Strong-Motion Virtual Data Center (VDC) is
  operational again US and New Zealand data for M
  5 since 2007 have been loaded
• Currently updating VDC to include Japan K-NET and
  KiK-net data (close to completion)
• Ground and some structural strong-motion data are
  processed and posted from CISN and other networks
  to aid in response to earthquakes and to guide
  future seismic design improvements