heightened seismis activities
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USGS Place Six Volcanoes at Orange Watch Status Due to Increased Activities
Previously, the USGS had four volcanoes on Orange / Watch status, but now there are six. Six of the USGS's 161 active volcanoes are of major concern. More than 160 potentially active volcanoes are monitored by the USGS in the United States, most of which are located in Alaska.
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