Volcano bits and bites — world archive
A rolling collection of worldwide volcano observations assembled from multiple information sources. Newer material appeared first, while earlier updates were retained as an archive.
Read the archived report →
Volcano archive
Daily volcano activity
An editorial index of established volcano reports, activity summaries and regional monitoring context. Archive dates refer to the original reporting period; conditions may have changed.
Established reporting
Activity archive
These historical entries summarize observations available at the time. For current alert levels, exclusions and aviation information, consult the responsible monitoring agencies.
El Hierro volcano activity report
A historical record of the El Hierro unrest and eruption sequence, with local observations and links between earlier installments. It should not be read as a current alert bulletin.
Open the El Hierro archive →
Volcano activity of the week
A multi-region archive covering activity at volcanoes in the Americas, Europe, Asia, the Pacific and Antarctica during its reporting period.
Browse the weekly report →
Volcano activity report message
An archive note explaining the purpose of the near-daily series: tracking reported changes in activity across volcanic regions and organizing observations for readers.
Read the archive note →
Mayon ash event — 7 May 2013
This historical entry covers a sudden ash event at Mayon in the Philippines that caused fatalities and injuries, alongside the wider activity digest for that day.
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Volcano activity — 6 May 2013
A period snapshot of observed seismicity, emissions and other activity indicators reported for volcanoes around the world.
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Volcano activity — 5 May 2013
An archived daily summary preserving reports of changing volcano conditions. Interpret all status language in its original historical context.
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Volcano activity — 4 May 2013
A historical activity digest collecting contemporaneous volcano observations from multiple regions and information sources.
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Volcano activity — 3 May 2013
A daily archive entry summarizing reported activity changes and monitoring observations available during the original reporting period.
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Volcano activity — 2 May 2013
An earlier installment in the near-daily volcano series, retained for historical research and comparison rather than present-day hazard decisions.
Open the daily entry →Common questions
Using the volcano archive
Are these reports current alerts?
No. This page indexes historical material. Always consult the responsible observatory and local emergency authority for current status.
What does volcanic unrest mean?
Unrest can involve changes in seismicity, gas, deformation or heat. It does not by itself establish that an eruption will occur.
Why can alert levels change?
Observatories reassess activity as monitoring data and field observations change. Alert systems also vary by country and agency.
Can earthquake activity predict an eruption?
Volcanic earthquakes are one monitoring signal, but they must be interpreted with other evidence. A precise eruption forecast is generally not possible from seismicity alone.
What should nearby residents do?
Know local hazard zones, prepare for ash and evacuation needs, and follow current instructions from civil-protection and volcano-monitoring authorities.
How should an old report be cited?
Use the report's original event date and make clear that it is an archived snapshot rather than a description of present conditions.