File:Tiltmeter on Mauna Loa.jpg

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Description	English: A tiltmeter, used to monitor Mauna Loa. From .
Date	2006-06-11 (original upload date)
Source	Transferred from en.wikipedia
Author	Original uploader was Worldtraveller at en.wikipedia
Permission ( Reusing this file)	PD-USGOV-INTERIOR-USGS.

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This image is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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