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Rapid Earthquake Characterization Using MEMS Accelerometers and Volunteer Hosts Following the M 7.2 Darfield, New Zealand, Earthquake

2014; Seismological Society of America; Volume: 104; Issue: 1 Linguagem: Inglês

10.1785/0120120196

1943-3573

J. F. Lawrence, E. S. Cochran, A. I. Chung, Anna Kaiser, C. M. Christensen, R. M. Allen, Jack W. Baker, Bill Fry, Thomas H. Heaton, D. Kilb, M. D. Kohler, Michela Taufer,

earthquake and tectonic studies

Research Article| January 07, 2014 Rapid Earthquake Characterization Using MEMS Accelerometers and Volunteer Hosts Following the M 7.2 Darfield, New Zealand, Earthquake Jesse F. Lawrence; Jesse F. Lawrence aStanford University, 397 Panama Mall, Mitchell Building 360, Stanford, California 94305 Search for other works by this author on: GSW Google Scholar Elizabeth S. Cochran; Elizabeth S. Cochran bUnited States Geological Survey, 525 S. Wilson Avenue, Pasadena, California 91106ecochran@usgs.gov Search for other works by this author on: GSW Google Scholar Angela Chung; Angela Chung aStanford University, 397 Panama Mall, Mitchell Building 360, Stanford, California 94305 Search for other works by this author on: GSW Google Scholar Anna Kaiser; Anna Kaiser cGNS Science, P.O. Box 30‐368, Lower Hutt 5040, New Zealand Search for other works by this author on: GSW Google Scholar Carl M. Christensen; Carl M. Christensen aStanford University, 397 Panama Mall, Mitchell Building 360, Stanford, California 94305 Search for other works by this author on: GSW Google Scholar Richard Allen; Richard Allen dUniversity of California, Berkeley, 307 McCone Hall, Berkeley, California 94720 Search for other works by this author on: GSW Google Scholar Jack W. Baker; Jack W. Baker aStanford University, 397 Panama Mall, Mitchell Building 360, Stanford, California 94305 Search for other works by this author on: GSW Google Scholar Bill Fry; Bill Fry cGNS Science, P.O. Box 30‐368, Lower Hutt 5040, New Zealand Search for other works by this author on: GSW Google Scholar Thomas Heaton; Thomas Heaton eCalifornia Institute of Technology, 1200 East California Boulevard MC 104‐44, Pasadena, California 91125 Search for other works by this author on: GSW Google Scholar Deborah Kilb; Deborah Kilb fScripps Institution of Oceanography, University of California, San Diego, 9500 Gilman Dr., La Jolla, California 92093 Search for other works by this author on: GSW Google Scholar Monica D. Kohler; Monica D. Kohler eCalifornia Institute of Technology, 1200 East California Boulevard MC 104‐44, Pasadena, California 91125 Search for other works by this author on: GSW Google Scholar Michela Taufer Michela Taufer gUniversity of Delaware, 101 Smith Hall, Newark, Delaware 19716 Search for other works by this author on: GSW Google Scholar Bulletin of the Seismological Society of America (2014) 104 (1): 184–192. https://doi.org/10.1785/0120120196 Article history first online: 14 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Jesse F. Lawrence, Elizabeth S. Cochran, Angela Chung, Anna Kaiser, Carl M. Christensen, Richard Allen, Jack W. Baker, Bill Fry, Thomas Heaton, Deborah Kilb, Monica D. Kohler, Michela Taufer; Rapid Earthquake Characterization Using MEMS Accelerometers and Volunteer Hosts Following the M 7.2 Darfield, New Zealand, Earthquake. Bulletin of the Seismological Society of America 2014;; 104 (1): 184–192. doi: https://doi.org/10.1785/0120120196 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyBulletin of the Seismological Society of America Search Advanced Search Abstract We test the feasibility of rapidly detecting and characterizing earthquakes with the Quake‐Catcher Network (QCN) that connects low‐cost microelectromechanical systems accelerometers to a network of volunteer‐owned, Internet‐connected computers. Following the 3 September 2010 M 7.2 Darfield, New Zealand, earthquake we installed over 180 QCN sensors in the Christchurch region to record the aftershock sequence. The sensors are monitored continuously by the host computer and send trigger reports to the central server. The central server correlates incoming triggers to detect when an earthquake has occurred. The location and magnitude are then rapidly estimated from a minimal set of received ground‐motion parameters. Full seismic time series are typically not retrieved for tens of minutes or even hours after an event. We benchmark the QCN real‐time detection performance against the GNS Science GeoNet earthquake catalog. Under normal network operations, QCN detects and characterizes earthquakes within 9.1 s of the earthquake rupture and determines the magnitude within 1 magnitude unit of that reported in the GNS catalog for 90% of the detections. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.