earthquake science center work for calvo and vhp n.
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Earthquake Science Center work for CalVO and VHP. May 14, 2014 Nick Beeler for Tom Brocher, Director. Topics. ESC assistance for CalVO NCSN – Long Valley seismicity, real-time HypoDD implemented, status of health software Geodesy – monitoring inflation at Long Valley

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earthquake science center work for calvo and vhp

Earthquake Science Center work for CalVO and VHP

May 14, 2014

Nick Beeler for Tom Brocher, Director

  • ESC assistance for CalVO
    • NCSN – Long Valley seismicity, real-time HypoDD implemented, status of health software
    • Geodesy – monitoring inflation at Long Valley
    • California-wide permit with US Forest Service
  • Induced Seismicity – Oklahoma is #2 in seismicity
  • Funding Opportunity for VHP?
    • Volcanic ash hazard to Great Valley water delivery system
  • Earthquake Early Warning – impact on VHP

RealtimeHypoDD has been implemented in the NCSS AQMS processing system. Double difference solutions for events going back to 1984 and realtime events should be available at the NC Earthquake Data Center soon.

5837 earthquakes in FY13

1052 M>1


Long Valley Caldera

Short and Long term monitoring

of changes in velocities with GPS

Last 2.75 yrs;

Inflation rate is significant

Last 2 Weeks;

no significant changes

time series
Time series

Last 1.5 years

Last 13 years


Deformation of Long Valley Caldera since 1984 to the present using 2-color EDM and continuous GPS

Located 6.2km beneath resurgent dome

Located ~12km beneath (or south) caldera’s south moat

Nuisance “parameters”

tephra volcanic ash localities
Tephra (Volcanic Ash) Localities

27 of 128 CDWR borehole localities so far have encountered tephra of variable thickness (0.1 to 7.5 m; 1.9±1.7 m)

Four distinct ashes identified at 27 localities

Unnamed Ash (180-210 ka)

delta tephra primarily transported and deposited by pleistocene great valley rivers
Delta TephraPrimarily transported and depositedby Pleistocene Great Valley Rivers (?)


n s cross section with chronostratigraphic units proposed tunnels alignment
N-S Cross Section with Chronostratigraphic Units(Proposed Tunnels Alignment)


Ponti, Maier, Tinsley, Wan

shakealert earthquake early warning for california and the west coast
ShakeAlertEarthquake Early WarningFor California and the West Coast
  • Principal EEW Collaborators
  • USGS Given, D., Cochran, E., Oppenheimer, D.
  • Caltech Heaton, T., Hauksson, E., Böse, M.
  • UC Berkeley Allen, R., Hellweg, P., Neuhauser, D.
  • Swiss Seismological Service, ETHClinton, J., Behr, Y.
  • U. of Washington Vidale, J., Bodin, P.
  • Moore Foundation Chandler, V., Biggs, G.

Doug GivenUSGS

Earthquake Early Warning Coordinator

Caltech Earthquake Research Affiliates Meeting

May 9, 2014


ShakeAlert Technical Implementation Plan

Goal: build & operate a West Coast EEW system to…

  • Issue public warningsfor large earthquakes and…
  • Send warning parameters to government and private sector users…
  • …as soon as ShakeAlert meets quality and reliability standards on a region by region basis

National Earthquake

Hazard Map (USGS)

large scale system architecture
Large Scale System Architecture

ANSS West Coast Centers

Pacific Northwest

  • ShakeAlert is built on ANSS regional networks
  • Leverages ANSS
    • Stations
    • Telecomm
    • Hardened centers
    • Software (EW, AQMS)
    • Expertise
    • Management structures
  • Extension of ANSS Tier 1 center operations (AQMS) “A new ANSS product”

Northern California

Southern California

progress toward a public eew system




California Integrated Seismic Network

Progress Toward a Public EEW System
  • Evolutionary Approach
    • 2006-now – R & D phase
    • Jan. 2012 – Demonstration System Live
    • 2014 – Production Prototype
    • ?* – Limited Regional Rollout
    • ?* – Full Operation


Evaluation Tool

*Rollout schedule depends on funding levels

investments in eew development through fy14
Investments in EEW Development(Through FY14)

Moore Foundation

(2012-2014, no renewal)



  • External coop agreements for R&D for EEW
    • Phase I & II (2002-2012) $2,093,851
    • Phase III (2012-2015) $1,575,000
  • ARRA California (2009-2011) $4,426,110
    • Network equipment upgrades
  • MultiHazards Project (2008-2014) $2,342,150
    • San Andreas sensors, station upgrades,production computers, personnel
  • Caltech $1,996,888
  • UC Berkeley $2,040,889
  • Univ. of Washington $1,848,351
  • USGS $ 594,406

TOTAL $6,480,534

TOTAL $10,437,111

  • City of Los Angeles – UASI funding
  • To Caltech $5,600,000
    • 125 new & upgraded stations
    • 40 RT-GPS stations
    • System infrastructure upgrades
  • FY14 – FederalOmnibus Budget Bill
  • $850,000 for EEW
  • “The Committees support efforts to continue developing an earthquake early warning prototype system on the West Coast.“
est cost to complete operate shakealert
Est. Cost to Complete & Operate ShakeAlert
  • New and upgrades seismic stations & GPS stations
  • Significant field telemetry upgrades
  • Support personnel
    • to bring ANSS (CISN) network staffing up to robust levels
    • EEW implementation and testing
    • EEW operation and user outreach
  • Support for continued R & D
additional anss stations
Additional ANSS Stations
  • Add & upgrade stations
  • Seismic & GPS
  • Optimum density ~20km
  • High quality, low latency
  • Upgraded telemetry

Newly upgraded site CI.CVW

1 ANSS station; broadband plus strong motion sensor

2 Only strong motion accelerometer

additional west coast anss staff
Additional West Coast ANSS Staff

Additional Personnel (USGS + cooperators)

  • Regional center staff

Additional Personnel (USGS + cooperators)

  • System-wide coordination and support staff

GPS observations:

GPS observations (transient detection):

Borehole Strain: