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Engineering Strong Motion Data Update - CISN Advisory & Steering Committees Meeting

Learn about the objectives and operations of the Center for Engineering Strong Motion Data (CESMD), including the Internet Quick Reports (IQR) and the Virtual Data Center (VDC).

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Engineering Strong Motion Data Update - CISN Advisory & Steering Committees Meeting

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  1. Center for Engineering Strong Motion Data (CESMD) Update CISN Advisory & Steering Committees Meeting

  2. 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

  3. Two Components of CESMD CISN Advisory & Steering Committees Meeting

  4. 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 CISN Advisory & Steering Committees Meeting

  5. CESMD Internet Quick Report (IQR)for US Data • For earthquakes in CISN region, records are available via IQR automatically within minutes after M>3.5 earthquakes, records w/ PGA>0.5%g • 78 automatically generated IQR in 2012 CISN Advisory & Steering Committees Meeting

  6. Small Records Served via FTP • Small records (M<3.5, and M>3.5 with PGA<0.005g) FTP(ftp://140.174.65.75/Small_Record_and_Earthquakes) • 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 CISN Advisory & Steering Committees Meeting

  7. New Face of the Strong-Motion Virtual Data Center (VDC) • VDC has beenincorporated into CESMD (originally developed at UCSB) • Metadata upload process nowuses standard format, is more automated • VDC has beenupdated with the addition ofM≥5.0 US and New Zealand records since 2007 • COSMOS promotes international SM networks making data available to VDC, development of global metadata standards CISN Advisory & Steering Committees Meeting

  8. CISN Advisory & Steering Committees Meeting

  9. Japan K-NET and KiK-net records now in VDC CISN Advisory & Steering Committees Meeting

  10. 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: M>5, at least 1 comp > 10%g, depth<100 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 CISN Advisory & Steering Committees Meeting

  11. CESMD ArchiveNo. of Earthquakes vs Magnitude Records from 296 earthquakes with M=>4.0 in CESMD CISN Advisory & Steering Committees Meeting

  12. CESMD ArchiveNo. of Records vs Magnitude About 9270 station records from earthquakes with M=>4.0 in CESMD CISN Advisory & Steering Committees Meeting

  13. 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 CISN Advisory & Steering Committees Meeting

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