Daily volcano activity
Chronological reports bringing together observations and monitoring notices from volcanic regions worldwide.
Open daily activity →
Volcano desk
Volcano activity, archives and context
Explore monitoring updates, eruption archives and background explainers. Volcano unrest develops differently at every system, so observations are presented with their limits and local context.
Browse activity reportsExplore the archive
Volcano coverage by format
Use daily indexes for chronological browsing, long-form reports for deeper context and spotlight pages for background on individual volcanic systems.
In-depth reports
Longer records following unrest, eruptions and monitoring developments across an extended period.
Browse in-depth reports →Volcano spotlight
Focused background on selected volcanoes, including geography, hazards and archived activity context.
View spotlight features →Selected reading
Reports from the volcano archive
Archive review dates below indicate when these summaries were revisited. The linked articles retain their historical event periods.
Why very large eruptions require deep magma storage
An archive explainer examines research into the deep reservoirs and long geological processes associated with exceptionally large eruptions.
Read the research summary →
Worldwide volcano notes and monitoring updates
This long-running collection organizes short observations from multiple information sources into one chronological reference.
Browse the report →
Iceland activity report: August 2014
A historical record of seismicity, eruption observations and changing conditions during an important period of Icelandic volcanic activity.
Open the Iceland archive →
Worldwide activity archive: late 2014
Archived notices cover systems in Cabo Verde, Japan, Indonesia, Iceland, Mexico, the Andes and other monitored regions.
Review the archive →Historical index
Worldwide archive periods
These pages preserve event sequences as historical records. They should not be treated as current alert information.
Worldwide volcano and earthquake archive
Activity notes include Kamchatka and other monitored volcanic regions during the stated period.
Open archive →Turn-of-year activity archive
A dated compilation of monitoring notices and reported volcanic developments.
Open archive →Fogo, Iceland and Pacific systems
Historical notes cover activity in Cabo Verde, Iceland, Alaska, Japan and Indonesia.
Open archive →Iceland, Hawaii, Indonesia and Japan
A chronological record covering several closely watched volcanoes during this period.
Open archive →
How to read updates
From monitoring signal to measured context
A single observation rarely describes the full state of a volcano. Read each report alongside official local notices and the recent monitoring trend.
- Check the report date. Archive pages document past conditions and may no longer reflect the current alert level.
- Identify the observation. Earthquakes, deformation, gas, heat and visible emissions measure different processes.
- Look for a pattern. Scientists interpret changes across several datasets rather than relying on one isolated signal.
- Follow local instructions. Exclusion zones, aviation notices and evacuation guidance come from responsible authorities.
Common questions
Volcano reporting FAQ
Does volcanic unrest always lead to an eruption?
No. Unrest can increase, stabilize or decline without an eruption. Monitoring agencies evaluate multiple observations and update alert levels as conditions change.
What does a volcano alert level mean?
Alert systems summarize conditions and recommended actions, but their scales differ by country. Consult the responsible observatory for definitions.
Can earthquakes indicate moving magma?
Some seismic patterns can be associated with fluid or magma movement, but earthquakes also occur for other reasons. Location, waveform and broader monitoring context matter.
Why are ash clouds important beyond the volcano?
Ash can affect breathing, visibility, machinery, water supplies and aircraft. Impacts depend on plume height, wind, particle size and local conditions.
Are archived reports current warnings?
No. Archive pages preserve past observations. For current hazards, use notices from the relevant observatory, civil-protection agency and aviation authority.
What is included in this category?
The category includes chronological activity reports, in-depth event pages, volcano spotlights, historical compilations and monitoring explainers.
About this site
Careful context for volcanic activity
Earthquake Report organizes historical and current-context volcano material for accessible research. It distinguishes observed activity from interpretation and does not replace warnings from observatories or civil-protection authorities.
Corrections, accessibility feedback and editorial questions can be sent to info@earthquakereport.com-html.com.
Learn more about Earthquake Report →