USGS Volcano Hazards

• List elevated volcanoesList the US volcanoes above normal right now: alert level ADVISORY, WATCH or WARNING, or aviation color code YELLOW, ORANGE or RED. Each comes with its current and previous level, when it changed, USGS's one-line summary and the newest notice about it, highest level first.
• List monitored volcanoesList every volcano USGS monitors closely enough to give an alert level, with its alert level, aviation color code and newest notice, and how many are at each level. Narrow it to one observatory or to some alert levels.
• List CAP alertsList the Common Alerting Protocol (CAP) alerts USGS issues for volcanoes at ORANGE/WATCH or higher, including a 'Cancel' when one drops back below. Each has its severity, urgency, certainty, expiry time and a link to the CAP document for alerting systems.
• List US volcanoesList every volcano of the United States with its location, elevation, threat category and links, narrowed by observatory, threat category, or words in the name or region.
• Get a volcanoGet one US volcano's details (location, elevation, threat category, USGS's description and links) with its current alert level, aviation color code and newest notice.
• Get a volcano's newest noticeGet the newest notice USGS has sent about a volcano, in full: every volcano it covers with its level, headline and summary, the section about the volcano asked for, and the whole notice as plain text.
• List recent noticesList the notices USGS volcano observatories sent in the last month, newest first, narrowed by observatory, notice type and how many days back. Each comes with the volcanoes it covers and its link; 'Get a notice' reads one in full.
• Search noticesSearch every notice USGS volcano observatories have sent since 2006 by observatory, volcano, notice type, date range and words in the text, newest first, 20 a page. Each comes with its one-line summaries and link.
• Get a noticeGet one USGS volcano notice in full: its type, observatory and time, every volcano it covers with its alert level, color code, headline and summary, and the whole notice as plain text.
• List aviation notices (VONAs)List the Volcano Observatory Notices for Aviation (VONAs) sent in the last year, newest first, with the volcano, its location, the color code set and a one-line summary. Narrow them by observatory, volcano and how many days back.
• Get an aviation notice (VONA)Get a Volcano Observatory Notice for Aviation (VONA): the message as pilots and dispatchers get it, and its lines read out (position, current and previous color code, activity, ash cloud height and movement, remarks).
• List observatoriesList the six USGS volcano observatories with their contact address and how many notices of each kind each has sent, with the first and latest.

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