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historicalmarkerproject/markers/HM1CQ_site-of-hawaiian-volcano-observatory_Hawaii-Volcanoes-National-Park-HI.html

1912-1942 For nearly 30 years, America's first full-time volcano observatory occupied this site. Under the direction of Dr. Thomas A. Jaggar, world renowned volcanologist, the expertise to monitor and study volcanoes was developed. In 1942, the ob…

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