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From GDACS (EU Joint Research Centre and UN OCHA) and the press coverage its Europe Media Monitor collects, USGS, the US National Hurricane Center, the Smithsonian Global Volcanism Program, InciWeb and NASA Earth Observatory. Headlines and short summaries only; every item links to the full story at its source. Not an official warning service.
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EarthquakesEarthquake Magnitude Explained: What M4, M6 and M8 Really MeanWhat the magnitude number measures, why each step is about 32 times more energy, how magnitude differs from how strongly you felt it, and how often big earthquakes happen.EarthquakesWhat to Do in an Earthquake: Drop, Cover and Hold OnWhat to do during an earthquake indoors, outdoors, in bed or in a car, what to do once the shaking stops, when to move to high ground for a tsunami, and how to prepare.StormsHurricane Categories Explained: The Saffir–Simpson Scale and the Forecast ConeWhat Category 1 to 5 means in km/h and mph, the difference between a hurricane, a typhoon and a cyclone, how to read the forecast cone, and why water is more dangerous than wind.StormsHurricane and Typhoon Season: When It Starts, When It Peaks, and How Storms Get Their NamesThe tropical cyclone seasons for the Atlantic, the Pacific, the Indian Ocean and the southern hemisphere, when each one peaks, how storms are named and why names are retired.VolcanoesVolcano Alert Levels and the VEI: How Eruption Danger Is MeasuredWhat green, yellow, orange and red mean for a volcano, ground alert levels versus aviation colour codes, how the VEI rates eruption size, and how many are erupting.WildfiresHow Satellites Spot Wildfires: Reading a Fire Hotspot MapHow NASA satellites detect fires from space, what a hotspot on the map really means, how fresh the data is, what it can miss, and why there are hotspots where there is no wildfire.EarthquakesThe Biggest Earthquakes in History: The 10 Largest Ever RecordedThe largest earthquakes since seismometers began, from the magnitude 9.5 in Chile in 1960 to the 8.8 off Kamchatka in 2025, and why they all happen in the same kind of place.EarthquakesTsunami Warning Signs: What to Do When the Sea Pulls BackThe natural warning signs of a tsunami, what to do in the minutes after a strong coastal earthquake, how official tsunami warnings work, and why the first wave is often not the biggest.VolcanoesThe Pacific Ring of Fire: Why Most Volcanoes and Earthquakes Happen ThereWhat the Ring of Fire is, why it holds most of the world’s active volcanoes and strongest earthquakes, which countries lie on it, and the famous volcanoes along the way.WildfiresWildfire Smoke and Air Quality: What the AQI Means and How to Protect YourselfWhy wildfire smoke harms health even far from the fire, what the air quality index and PM2.5 numbers mean, and practical ways to keep the air at home cleaner on smoky days.
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