For more information about TMT Hawaii, please visit https://www.maunakeaandtmt.org and https://www.maunakeaandtmt.org/get-the-facts
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TMT Earthquake Simulation

During the week of January 26, 2015, the Thirty Meter Telescope performed a series of "shake tests" in El Segundo, California. A major earthquake was simulated to confirm that the telescope's glass mirror segments would survive without damage.

A mirror segment was first shaken vertically. The aluminum mirror segment used in the tests had the same mass properties as the actual segments that will be used in TMT's construction.

The mirror segment was then shaken horizontally. The intensity of the shaking simulated the worst estimated earthquake that would be expected in Hawaii over a 200 year period.

The Primary Segment Assembly passed the tests extremely well.

With these tests behind it, TMT can now continue with construction of the Primary Mirror, confident in the telescope's ability to survive a severe earthquake on Mauna Kea.

TMT Earthquake Simulation

During the week of January 26, 2015, the Thirty Meter Telescope performed a series of "shake tests" in El Segundo, California. A major earthquake was simulated to confirm that the telescope's glass mirror segments would survive without damage.

A mirror segment was first shaken vertically. The aluminum mirror segment used in the tests had the same mass properties as the actual segments that will be used in TMT's construction.

The mirror segment was then shaken horizontally. The intensity of the shaking simulated the worst estimated earthquake that would be expected in Hawaii over a 200 year period.

The Primary Segment Assembly passed the tests extremely well.

With these tests behind it, TMT can now continue with construction of the Primary Mirror, confident in the telescope's ability to survive a severe earthquake on Mauna Kea.