Moved:SCEC UGMS Committee Meeting 4

{{#externalredirect: https://www.scec.org/workshops/2015/ugms}}

SCEC Committee for Utilization of Ground Motion Simulations Meeting 4

Organizers: C.B. Crouse (AECOM) and Tom Jordan (SCEC/USC)

Date: Monday, May 4, 2015 (10:00-15:30)

Location: SCEC Media Room (ZHS 165), USC, Los Angeles, CA

Participants: 24 (by invitation only)

Agenda

Presentation slides may be downloaded by clicking each title. PLEASE NOTE: Slides are the author's property. They may contain unpublished or preliminary information and should only be used while viewing the talk.

10:00	Welcome and introductions
10:15	Introductory Remarks and Meeting Agenda (see Handout)	C.B. Crouse
10:30	New Code Cycle (Project 17, BSSC Issue Teams, ASCE 7 SSC)	C.B. Crouse
10:45	Overview of SCEC CyberShake Platform	Tom Jordan
11:00	Update on SCEC CyberShake Progress	Phil Maechling
11:30	Calculation of Risk-Targeted Maximum Considered Earthquake Response Spectra (MCER)	Scott Callaghan
12:00	Lunch
13:00	Southern California MCER Sa(T) maps – CyberShake vs. 2013 NGA West2 - CyberShake & NGA West2 Sa maps for T = 3, 5, & 10 sec - Ratio Maps (CyberShake/NGA West2) for each T - Discussion	Kevin Milner
13:30	Calculation of v15.4 Risk-Targeted Maximum Considered Earthquake Response Spectra (MCER) at 14 Southern California Sites (T = 2 – 10 sec)	Scott Callaghan
14:00	Effect of Near-Surface Geology - SCEC Thick Surface Layer with Constant Material Properties vs. Realistic Model with Depth-Dependent Material Properties - Results of 1-D Site Response with Both Models - Discussion	C.B. Crouse
14:30	Break
14:45	Technical Issues, Logistics, & Schedule for Producing Long Period MCER Maps for L.A. Region in Short Term (e.g., Possible supplement to ASCE 7-16 for City of L.A.) and Long Term (2021 NEHRP & 2022 ASCE 7)	C.B. Crouse
15:00	Future Work for CyberShake	Tom Jordan
15:15	Results to be Presented and Tentative Dates for Next UGMS Meeting
15:30	Adjourn

Participants

Member Attendees (in person) C.B. Crouse - chair John Anderson Rob Graves John Hooper Marty Hudson Tom Jordan Charlie Kircher Nico Luco Paul Somerville	Member Attendees (remotely) Jack Baker Jacobo Bielak Art Frankel	Members Absent Norm Abrahamson Bob Bachman Ron Hamburger Curt Haselton Lew Marshall Farzad Naeim	Observers Domniki Asimaki Nenad Bijelic Scott Callaghan Tran Huynh Ting Lin Phil Maechling Kevin Milner Morgan Moschetti Kim Olsen Sanaz Rezaeian Andreas Skarlatoudis Ricardo Taborda

Results

PSHA Hazard Curves & MCER Curves

Map of MCER Study Sites. Purple sites are along a 10 km x 10 km mesh, orange sites are near SCSN broadband stations, and yellow sites are locations of interest.
	PSHA Hazard Curves		MCER Curves
Study Sites (KML file)	CyberShake v14.2	CyberShake v15.4	CyberShake v14.2	CyberShake v15.4
CCP Center City Plaza	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
COO Compton	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
LADT Los Angeles Downtown	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
LAPD Lake Palmdale	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
p22	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
PAS Pasadena	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
s429	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
s603	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
s684	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
s758	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
SBSM San Bernardino Strong Motion	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
SMCA Santa Monica Civic Auditorium	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
STNI 710/90 Interchange	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results
WNGC Whittier Narrows Golf Course	2s, 3s, 4s, 5s, 7.5s, 10s	2s, 3s, 4s, 5s, 7.5s, 10s	Probabilistic MCER Deterministic MCER Combined Results Overall Results	Probabilistic MCER Deterministic MCER Combined Results Overall Results

MCER Maps (CyberShake v14.2)

Period	Probabilistic MCER	Deterministic MCER	Deterministic Lower Limit	Combined MCER results
3 Second RotD100
5 Second RotD100
10 Second RotD100

GMPE Comparison Maps (CyberShake v14.2)

Period	CyberShake Combined MCER	GMPE Combined MCER	Ratio (CyberShake/GMPE)
3 Second RotD100
5 Second RotD100
10 Second RotD100

CyberShake Action Items

1. Plan CyberShake UCERF3 with initial runs 2015
2. Run forward simulation of selected CyberShake ruptures to evaluate assumption of linear ground motion response.
3. Clarify Deterministic MCER calculations with USGS.
4. With Rob, modify hypocenter location probabilities to taper few hypocenters near top of fault.
5. Discuss with Jacobo the large displacement he’s seeing in MCER results.
6. Define a procedure for “approving” CyberShake result, short of publishing. Maybe define a series of stages to put a computational result through as they get checked
7. Send out notification when we “certify” CyberShake 15.4 results
8. Send out notification when we complete and certify CS 15.4 all sites and maps.
9. Consider adding Alhambra Site City Emergency Response Center 10 Story Steel moment frame building.

Related Entries

• CyberShake_MCER
• UGMS
• SCEC_UGMS_Committee_Meeting
• Main_Page