Santa Maria (Guatemala)
The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported ongoing eruptive activity at Santa Maria?s Santiaguito dome complex during 22-29 July, with continuing lava extrusion at Caliente dome. Incandescence at the summit was observed during dark hours. Effus
- Time
- 7/30/2026, 8:15:07 AM UTC
- Coordinates
- 14.757, -91.552
- Data source
- gvp
- Activity
- Continuing Eruptive Activity
- Country
- Guatemala
- Report period
- 23 July-29 July 2026
- Source
- Smithsonian / USGS Weekly Volcanic Activity Report
Event timeline
- Wed, 05 Aug 2026 01:42:12 GMTSignificantSanta Maria (Guatemala)
Snapshots are recorded when the event first appears or its severity changes.
🧰 What to do
Before
- •Know your community's evacuation plan and routes
- •Prepare goggles and N95 masks for ashfall
- •Keep vehicles fueled and a kit ready if near an active volcano
During
- •Evacuate if ordered; ash and gases can be deadly
- •If staying: close windows/doors/vents, wear a mask outdoors
- •Avoid river valleys and low areas (lahar/mudflow paths)
After
- •Avoid ashfall driving — ash damages engines and cuts visibility
- •Clear heavy ash from roofs carefully (wet ash is very heavy)
- •Wear a mask during cleanup; keep ash away from children
Guidance condensed from Ready.gov
AlertAtlas aggregates official hazard data (USGS, NOAA/NWS, NHC, NASA EONET, GDACS, SMN/CONAGUA México CC BY 4.0, SMN Argentina CC BY 4.0, INMET Brasil, Environment and Climate Change Canada OGL-Canada, EUMETNET – MeteoAlarm CC BY 4.0, PAGASA-DOST Philippines, India Meteorological Department, Thai Meteorological Department, EMSC-CSEM, Roshydromet, Kazhydromet, Office National de la Météorologie Algérie, INAMHI Ecuador, Dirección Meteorológica de Chile, National Center for Meteorology Saudi Arabia, Kyrgyzhydromet, Uzhydromet, Meteorological Service Jamaica, Egyptian Meteorological Authority, Smithsonian / USGS Global Volcanism Program, Japan Meteorological Agency, MAGMA Indonesia (PVMBG), region boundaries Eurostat/GISCO © EuroGeographics). Event details update every few minutes while the event is active; pages for expired events are removed. Always follow guidance from local authorities.