MaunaMauna KeaKea ObservatoriesObservatories PostPost--EarthquakeEarthquake WorkshopWorkshop

23 March 2007 AA FewFew DetailsDetails

” On Sunday October 15 at 7:07 AM HST experienced a 6.7 mag earthquake, centered ~10 miles west of Waikoloa ‘ 6.0 mag aftershock @ 7:14, followed by many smaller aftershocks ” Felt across the entire state ‘ Knocked out all power on Oahu for ~12 hours ‘ Significant impact on Big Island infrastructure, particularly on the west side of the island ‘ Largest earthquake to strike since the time telescopes were deployed on the summit… HowHow CommonCommon AreAre TheseThese Events?Events? TopTop LevelLevel GoalsGoals ofof thethe WorkshopWorkshop

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Earthquake Damage TopTop LevelLevel GoalsGoals ofof thethe WorkshopWorkshop

” Provide a format where we can all candidly share experiences ‘ Lots of anecdotal information exchanged right after the earthquake - this workshop is an opportunity to provide more specific and quantitative information for everyone’s benefit ” Identify areas where we can better prepare for the next major earthquake (which will happen…) ” Estimate what will likely happen if a much larger earthquake (e.g. 8-9 mag) strikes in the future? ‘ Will we suffer the catastrophic loss of the world’s premier ground based collection of ? TopTop LevelLevel GoalsGoals ofof thethe WorkshopWorkshop

” Economic investment and scientific value of astronomy in Hawaii is impressive including - ‘ ~$700,000,000 invested to date in original facilities (not including new instruments, upgrades, etc.) ‘ Annual operating costs of ~$90M ‘ Economic impact on the Big Island of ~$200M ‘ >500 people employed ‘ More light gathering capability than any other site ˜Mauna Kea is world renowned (seeing, water vapor, etc.) ‘ To date roughly ~6000 O/IR astronomy papers are traceable to research performed on Mauna Kea ‘ Mauna Kea truly is humanity’s principal ground based portal on the universe - impossible to assign a dollar value to this, but we all know its value to civilization is large Is Mauna Kea Today… Is Mauna Kea Today…Tomorrow’s Katrina? AA FewFew WorkshopWorkshop Details…Details… WorkshopWorkshop LogisticsLogistics

”Please provide electronic copies of your presentation to Terry ‘They will all be posted on Gemini’s Web site for general distribution ”Lunch will be provided in the dining area adjacent to the front desk for all workshop participants ”Free drink tickets, redeemable prior to tonight’s banquet, are issued with your name tag SessionSession 11 -- Chair:Chair: DougDoug SimonsSimons

CFHT 8:45 CFHT as a seismometer Derrick Salmon Gemini 9:45 Gemini Seismic Hazard Analysis, Seismic Design… Mike Sheehan 10:05 Earthquake Recovery Planning and Execution… R. Rogers and/or S. Hardash 10:15 Break 10:30 Telescope Bearings Issues Chas Cavedoni 10:40 M2 Reference Sensor Failure and Recovery Chris Carter 10:50 Ongoing Work to Prepare for Future Earthquakes S. Hardash and/or D. Maltes UH 2.2m 11:00 An Overview of the Damage to the UH88” Telescope… Colin Aspin CSO 11:45 The CSO earthquake response and recovery E. Bufil and R. Chamberlin SMA 12:15 The Impact of the Oct 17 2006 Earthquake on SMA… Glen Petitpa 12:30 Lunch (provided) SessionSession 22 -- Chair:Chair: HiltonHilton LewisLewis

Keck 2:00 Team Introductions and Presentation Overview… Hilton Lewis 2:10 Photo narrative of HQ facility damage & recovery… Steve Shimko 2:15 Photo narrative of summit structural, electronics,… Rich Matsuda 2:25 Photo narrative of instrumentation damage… Grant Hill 2:35 Current recovery status, remaining challenges… Hilton Lewis 2:45 Q & A All 3:00 Break SessionSession 33 -- Chair:Chair: MasaMasa HayashiHayashi

Subaru 3:15 Telescope/Enclosure etc. Daigo Tomono 3:40 HDS Akito Tajitsu 4:00 A micro-crack alert system for large mirror Masanori Iye UKIRT and JCMT 4:15 By Luck or Design Simon Craig SessionSession 33 -- Chair:Chair: MasaMasa HayashiHayashi

All Observatories 4:30 Round table discussion Subaru-Tetsuo Nishimura; Keck-Hilton Lewis; Gemini-Mike Sheehan; CFHT- Derrick Salmon; UKIRT & JCMT-Simon Craig; UH 2.2m-Colin Aspin; CSO- Richard Chamberlain; SMA-Glen Petitpa •Availability of inter- engineering resources to perform quake or emergency preparedness infrastructure upgrades common to MKO facilities. •Technical aspects of earthquake damage •Why did the big telescopes sustain more damage? •Management response to earthquake •Summit-wide preparations for future earthquakes •Staff sharing 5:30 Pau Workshop 6:30 Banquet Buffet OnOn withwith thethe workshop…workshop…