1. August 14, 2006 Seismic Monitoring in the Utah Region — Status and Needs Walter Arabasz

2. How We Got Where We Are 1971 — Small state line-item appropriation secured 1983-88 — NEHRP focus on Wasatch Front area, but no funds for modernizing seismic network 1989 — Legislative blue-ribbon panel convened: “What EQ instrumentation is needed in Utah?” $2.7 million recommended 1990-94 — After four tries, gained only $75K/yr increase in state line-item from legislature Turned to national arena to plan, fund & build ANSS (more) First...

3. How We Got Where We Are (cont’d) FY2000 — Language in President’s budget asking for $800K for EQ instrumentation in San Francisco; $400K, Seattle, $400K, Salt Lake City... Funding gained with help of Utah Senator Bennett FY2001-02 — Added ANSS funds gained to build urban SM network and basic, end-to-end real-time EQ info system in Wasatch Front urban corridor before 2002 Winter Olympics (automated alarms, locations, ShakeMaps, with dual Earthworm systems) Since mid 1970’s, state-federal partnership for seismic monitoring in Utah with ~ 40% annual state contribution

4. What’s in Place...

5. UUSS Regional/Urban Seismic Network Regional short-period/broadband net 221 stations 534 channels Urban strong-motion network

6. Example UUSS Stations Regional station, rock site Urban station, open ground Urban station, small building

7. Numbers for Utah Region 160 stations (424 channels) 85 SM, 58 SP, 17 BB 70 urban SM stations plus 5 BB/SM stations in the Wasatch Front area 10 urban SM stations outside WFA

8. ShakeMap in Utah Region ShakeMaps in Wasatch Front Area in 2001  ShakeMaps in Wasatch Front Area in 2001  ShakeCast for rapid integration into HAZUS implemented in 2005  ShakeMap capability expanded to entire Utah region in 2005   18 ShakeMap scenarios online Thanks to Kris Pankow! Co-operative project: ANSS, NSMP, UUSS, Utah Geol. Survey, Utah OES

9. What Else is in Place? Uncommonly strong state earthquake program (solid partnership between UU Seismograph Stations, Utah Geological Survey, and Utah Office of Emergency Services) Strong support from Utah Seismic Safety Commission, created in 1994 by state legislature State-level, 12-member ANSS advisory committee for urban strong-motion monitoring

10. Prioritized Needs 1.Software development and support from ANSS 2.More BB stations in seismically active parts of Utah with poor seismographic coverage  Currently pursuing through an initiative to the Utah Legislature (handout) 3.More stations (both regional and urban SM) in dramatically growing St. George-Cedar City area in SW Utah and in other seismically active parts of rural Utah)  Currently pursuing through an initiative to the Utah Legislature (handout) (more)

11. Prioritized Needs (cont’d) 4.Upgraded computer hardware to ensure reliable data recording, given increased number of stations/channels recorded 5.Partial re-engineering of telemetry (including links to NEIC) to guarantee continuity of data recording/processing in event of a large Wasatch Front EQ 6.More SM stations in the Wasatch Front urban corridor