Kristine L. Pankow, Jon A. Rusho, Mike Ellis, Bob Carey University

University Of Utah
Seismograph Stations
The University of Utah
Integrating ShakeMap with ShakeCast
for
Earthquake
Response
in
Utah
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SSA ????
Kristine L. Pankow, Jon A. Rusho, Mike Ellis, Bob Carey
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University of Utah Seismograph Stations , Utah Department of Transportation, Utah Division of Emergency Management
I. Recent Updates/Improvements to Utah ShakeMaps
• Upgraded to ShakeMap v3.5 and integrated with AQMS
• Changed the ground motion predictive equations to the southern California model (Chiou et
al., 2010) for small earthquakes and Chiou and Youngs (2008) model for larger earthquakes
• Generated ShakeMap scenarios based on characteristic fault models from the 2008 National
Seismic Hazard Map
ASSESSING GMPEs (Pankow, 2012)
• Processed seismic recordings from 163 earthquakes (M L 3.0 to 5.3) occurring from 2000
through 2011
• Earthquakes were recorded at distances from 4.3 to 200 km from a Utah strong-motion station.
• Resulting data set includes 2026 peak ground acceleration (PGA) and peak ground velocity
(PGV) measurements
II. ShakeCast Implementation
UNIVERSITY OF UTAH SEISMOGRAPH STATIONS (UUSS) CONTINUITY OF OPERATIONS LEFT: For continuity of operations, potential impacts to the University campus environment are assessed for a M7 scenario event along the Wasatch
Front. ShakeCast analysis indicates the UUSS primary facility would receive minimal damage, but surrounding buildings could suffer severe damage.
• UUSS operates over 250 instruments covering the Utah region and Yellowstone
National Park. UUSS has the primary responsibility for acquiring, analyzing, and
MIDDLE: The Richfield Data Center is a “hot” site, meaning that it is analyzing data concurrently with the UUSS primary facility. A M6 scenario event
distributing seismic data products for these regions.
was run against the data center as well as surrounding cities and towns to determine accessibility in the event of a major earthquake in that region.
• For continuity of operations, UUSS operates 7 data acquisition nodes and two
analysis facilities, one on the University of Utah main campus and the other at the
State of Utah’s Richfield Data Center.
RIGHT: Many of the UUSS stations telemeter to microwave facilities on nearby mountain tops. ShakeCast has been used to assess these sites to determine potential impacts in the event of a significant earthquake. Most of the mountain top microwave sites are hardened facilities, and ShakeCast
indicates minimal impact in the event of a significant earthquake.
UUSS Earthquake Information Center
Map of UUSS stations, acquistion nodes and
analysis sites (colocated with acquisition
nodes)
Figure 2. Location map of earthquakes between 2000 and 2011 (scaled by size) ML 3.0 to
5.3 located within 200 km of a Utah strong-motion station (figure 1) from which peak
ground acceleration or velocity was measured. Quaternary faults are indicated with
black lines.
Figure 5. Mean residuals plus one standard deviation in 0.3 log distance bins between the ground motions measured in this study, PGA left and PGV right, and three
ground motion prediction equations: top, TN05 (Wald and others, 2005); middle,
CY10 (Chiou and others, 2010); and bottom, AB11 (Atkinson and Boore, 2011).
SHAKEMAP SCENARIOS
• Fault geometries are characteristic faults from the 2008 National Seismic Hazard Map
• Used Chiou and Youngs (2008) GMPEs
• Site amplification calculated using the GMPE equation and Vs30 values determined for Utah
(McDonald and Ashland 2008).
Hurricane Fault Zone Northern M 7.0
Wasatch Fault Brigham City Segment M 6.9
ShakeCast display for a M7 scenario earthquake along the Wasatch Front, analyzing impact to
buildings on the University of Utah campus, including UUSS’ primary facility.
ShakeCast analysis for M6 scenario event at the UUSS “hot” site in Richfield, UT. Surrounding
towns as well as the facility itself are included.
UTAH DIVISION OF EMERGENCY MANAGEMENT EARTHQUAKE RESPONSE
UTAH DEPARTMENT OF TRANSPORTATION BRIDGE ASSESSMENT
• Utah Division of Emergency Management(UDEM), part of
the Utah Department of Public Safety, uses ShakeMap and
ShakeCast as part of their response to earthquakes in Utah
• UDEM currently has Utah’s cities and towns, hospitals and
some college/university buildings in their ShakeCast system
for analysis.
• UUSS and UDEM are working towards a more comprehensive building inventory for ShakeCast.
• Utah Department of Transportation(UDOT) uses ShakeCast to prioritize bridge inspections after an event.
• UDOT installed and configured ShakeCast in advance of the 2012 Utah ShakeOut.
The database of bridges with fragilities is loaded, which will help UDOT prioritize
bridge inspections in case of an emergency.
• In addition, several scenarios have been run to test the current bridge inventory
against potential ground motions.
ShakeCast analysis for a remote mountain top telemetry site for a nearby M7 scenario earthquake.
State of Utah Emergency Operations Center during the 2012 Great
Utah ShakeOut
ShakeCast and ShakeMap in use at the State of Utah Emergency Operations Center, along with Swarm and CISN Display
Example ShakeCast report for a scenario earthquake indicating the extent of bridge
damage. The full report includes information on all the bridges.