The document discusses seismic activity on Mauna Kea and the need for analysis on how it could impact the TMT project. It notes that while past assessments have examined regional seismicity, none have analyzed the specific impacts on TMT operations. It recommends that before any TMT construction, thorough analyses of current and projected volcanic and seismic activity are completed, along with studies of their potential effects on the TMT. Work should be suspended until these analyses and the UH Mauna Kea stewardship plan are fully approved.

1. TMT --- SCIENCE on SCIENCE
Issue: Quantifying the Impact of Seismic Activity on TMT astronomical
operations and ensuring compliance with CURRENT (2015) Health, Safety,
Workplace, Environmental, and Conservation Laws and Regulations
I. FINAL ENVIRONMENTAL IMPACT STATEMENT – MAY 8, 2010
EIS Section 3.6.1 – Geology, Soils and Slope Stability – Environmental Setting – Mauna Kea
Summit Region. Pages 3-105 to 3-114.
Geologic Hazards
a. The potential for renewed volcanic activity in this region is extremely remote.
Page 3-109.
b. The most significant geologic hazard is seismic activity. Hawaii Island is one of the
most seismically active areas on earth. Page 3-109.
c. The summit of Mauna Kea is susceptible seismic intensities up to VII on the
Modified Mercalli Intensity Scale. Page 3-109 – 3-110.
II. SEISMIC ACTVITY ON MAUNA KEA - Current as of (updated daily)June 24. 2015
Please refer to: USGS Seismic Activity
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/index.php
a. Left Margin, Check: Earthquake Display Period: One year
b. Left Margin, Click on: Mauna Kea
NOTE: Reference material used for this Section date from 1941 to 2009
SITE-SPECIFIC SEISMIC HAZARD ASSESSMENT REPORT OF PROPOSED TMT SITE – February 4,
2010 http://www.tmt.org/sites/default/files/documents/application/pdf/urs_report_2-4-
10.pdf
The work scope consisted of the following main tasks: 1. Investigation of the regional tectonics,
geology, and active faulting on the Island of Hawaii, 2. Compilation of regional seismicity, 3.
Determination of seismic source zones,

2. 4. Determination of the local geology at the site from available information and photos taken
during a site reconnaissance, 5. Development of earthquake recurrence curves for the seismic
sources, 6. Analysis of earthquake ground motion data recorded in Hawaii and selection of
ground-motion attenuation equations compatible with these data, 7. Performance of the PSHA
to obtain the site response spectra and deaggregation results, and 8. Development of the
acceleration time histories.
NOTE: No analysis of seismic activities and their impact on TMK
operations is provided by the Assessment Report
UH IMPLEMENTATION PLAN FOR IMPROVED STEWARDSHIP OF MAUNA KEA - JUNE 01, 2015
http://www.tmt.org/news-center/uh-implementation-plan-improved-stewardship-maunakea
UH PRESIDENT DAVID LASSNER AND UH HILO CHANCELLOR DONALD STRANEY:
Over the past months the University of Hawaii has received substantial input regarding our
stewardship of Maunakea. Governor David Ige’s statement on May 26 is consistent with what
we have heard from the community. We accept that the university has not yet met all of our
obligations to the mountain or the expectations of the community. For that, we apologize and
lay out this outline of an action plan for improving our stewardship. We will provide a more
detailed schedule by July 2015 following additional consultations.
1. TMT is the last new site
The Thirty Meter Telescope (TMT) will be the last new observatory site developed on
Maunakea. Any new observatories may only be placed on existing sites.
2. Adopting a decommissioning schedule
On May 28, the Caltech Submillimeter Observatory announced it will end operations in
September 2015. They will be the first observatory to implement the Decommissioning Plan for
the Mauna Kea Observatories, and should complete the process by 2018. We are discussing
with the directors of other observatories a definitive schedule of decommissioning of other
observatories.
3. Return of leased land to DLNR
We will consult with DLNR on how we can identify and return to their management lands that
are currently part of the Mauna Kea Science Reserve that are not used for astronomy.

3. 4. Restarting the EIS for the master lease renewal
Over the past two months, we have heard many new ideas regarding the university’s master
lease for the Mauna Kea Science Reserve. We will restart the Environmental Impact Statement
process for our new lease, enabling us to include additional options for consideration, and
conduct a cultural impact assessment. The requested term of the new lease will be substantially
less than a 65-year extension.
5. Improved management of non-cultural access to Maunakea
We have been consulting with community groups to develop administrative rules for the
Mauna Kea Science Reserve, including rules that would ensure cultural access while improving
management of non-cultural access.
6. Improved cultural research, education and training
We will work with Kahu Ku Mauna and other Native Hawaiian advisors to develop new cultural
training and educational programs about Maunakea. Training is currently required for people
working on the mountain and we will look for opportunities for improvement. We will develop
training and education programs for visitors to ensure that all who come to Maunakea
understand its cultural significance and how to respect the mountain. To ensure our cultural
training and education programs are accurate, effective and continuing, we will establish at UH
Hilo a new program to lead and evaluate our expanded cultural stewardship and educational
activities related to Maunakea.
7. Full use of observing time
We confirm the university is making, and will continue to make, full use of its observing time at
Maunakea observatories.
8. Increased financial support for stewardship
We will discuss with our sublessees the level of their investments in the operational and
stewardship costs for the Mauna Kea Science Reserve as well as sublease payments under a
new master lease.
9. New scholarship programs
The governor asked TMT to increase its support to Native Hawaiian students, particularly those
from Hawaii Island, who wish to pursue science and technology careers. UH recognizes its
responsibilities in this area and we will launch a campaign for new scholarship programs for
Hawaii Island and Native Hawaiian students to increase their participation in the sciences.

4. The university will allocate a portion of its observing time to UH Hilo for use in projects and
programs to support greater participation and improved preparation of Hawaii Island students
for professional careers.
NOTE: No analysis of seismic activities / volcanic activity and their impact
on TMK operations are to be provided by UH Implementation Plan for
Improved Stewardship of Mauna Kea
RECOMMENDATIONS:
a. A thorough, complete and current (2015) seismic assessment be
completed before of any work is authorized to proceed, except by the
issuance of a formal written Executive Order by the Governor of
Hawaii (the Hawaii Legislature not being in Session);
b. A trend analysis and projection for future (beyond 2015) volcanic and
seismic activity be completed before of any work is authorized to
proceed, except by the issuance of a formal written Executive Order by
the Governor of Hawaii (the Hawaii Legislature not being in Session);
c. A thorough and complete analysis on the impact of volcanic and
seismic activities on operations of the TMT be completed before of any
work is authorized to proceed, except by the issuance of a formal
written Executive Order by the Governor of Hawaii (the Hawaii
Legislature not being in Session);
d. That work on the TMT is permanently suspended until completion and
final approval of the UH Implementation Plan for Improved
Stewardship of Mauna Kea, unless work is authorized to proceed by
the issuance of a formal written Executive Order by the Governor of
Hawaii (the Hawaii Legislature not being in Session).