• Earthquakes
• Hazards
• Learn
• Prepare
• Monitoring
• Research

• Earthquakes
  • Real-time Earthquakes
  • Real-time Feeds & Notifications
  • Did You Feel It?
  • Significant EQ Archive
  • Search EQ Archives
  • “Top 10” Lists & Maps
  • Info by Region
  • US Seismicity Map
  • World Seismicity Maps
• Hazards
  • Faults
  • Hazard Maps & Data
  • Seismic Design
  • Hazard Analysis Tools
  • EQ Scenarios
• Learn
  • EQ Topics for Education
  • FAQ
  • EQ Glossary
  • For Kids
  • Google Earth/KML Files
  • EQ Summary Posters
  • Photos
  • Publications
• Prepare
  • How do I prepare?
  • Great ShakeOut Drills
  • Multi-Hazards Project
• Monitoring
  • NEIC
  • ANSS – United States
  • GSN – World
  • Volunteer Monitoring
  • ASL – Albuquerque
  • Volunteer Monitoring
  • Network Operations
  • Seismogram Displays
  • Buildings
  • NSMP – Strong Motion
  • Crustal Deformation
• Research
  • Projects
  • Science Centers
  • Data
  • DYFI?
  • PAGER
  • ShakeMap
  • Early Warning
  • Software
  • External Support

• Accessibility
• FOIA
• Privacy
• Policies and Notices
• In partnership with nehrp
• 
• 

U.S. Department of the Interior | U.S. Geological Survey
Page URL: http://earthquake.usgs.gov/monitoring/helicorders/nca/153/20120501/
Page Contact Information: Contact Us
Page Last Modified: August 08, 2012 14:14:59 UTC

DOI and USGS link policies apply.