The equatorial Pacific is the warmest on record
- Equatorial Pacific sea temperature is 3.4 °C above normal (the highest weekly reading since 1981).
- Great Sitkin: aviation colour code orange (watch).
- The strongest earthquake today was magnitude 5.9, central Mid-Atlantic Ridge.
- Tropical Cyclone Murasu.
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Is the Pacific running hot?
Sea temperature in the key strip of the equatorial Pacific is above normal. That pattern is known as El Niño, and it tends to shift weather patterns around the world and push global temperatures up.
Source: NOAA Climate Prediction Center, weekly Niño 3.4 temperature to 28 Oct. The official three-month index (RONI) reads +2.0 for the period centred on Sep 2026. NOAA ENSO data · NOAA ocean series
Are any volcanoes restless?
Colour codes are the aviation scale: green is normal, yellow an advisory, orange a watch, red a warning. NASA's event tracker lists 35 volcanoes worldwide with recent activity reports.
Sources: USGS Volcano Hazards Program (US volcanoes only), NASA EONET, and USGS earthquakes for Campi Flegrei and Vesuvius. USGS volcano notices · NASA EONET
Were there any big earthquakes?
About 20 earthquakes this size happen somewhere in the world on a typical day. The strongest, magnitude 5.9, struck at 23:17 UTC, central Mid-Atlantic Ridge. The day is not over, so the count can still rise.
Busier or quieter than usual, last 90 days
Worldwide the last 90 days brought 2,098 earthquakes of magnitude 4.5 or more, 29% above the 1996–2025 average for 90 days. The marker on each bar is that country's own average.
Source: USGS. Larger dots are stronger; faint dots are the previous six days. Magnitude 4.5+ only, so counts compare fairly across the decades. USGS catalogue
How much Arctic sea ice is there?
That is 4th lowest of 45 years for this date. In the 1980s there was about 10.3 million km² of ice at this time of year. The lowest on record for the date was 7.7 million, in 2016.
Source: NSIDC Sea Ice Index, 5 Nov. One bar per year for the same date. Average is 1981–2010. NSIDC Sea Ice Index
Are there any dangerous storms?
An alert colour reflects the likely effect on people, not just wind speed: red is the highest. 4 weaker tropical storms are also active.
Sources: Global Disaster Alert and Coordination System (GDACS) and NASA EONET. Alert colours are indicative. GDACS reports · NASA EONET
Is the Sun causing trouble?
NOAA rates the geomagnetic storm level 1 of 5, the lowest storm level. It can brighten the aurora near the poles; it is not expected to affect everyday phone or GPS use.
Source: NOAA Space Weather Prediction Center. Bars show each day's highest Kp; 5 or more is a geomagnetic storm. NOAA space weather
Is the air changing?
Carbon dioxide measured on Mauna Loa, Hawaii, in Nov 2026, against 333.5 in 1974.
Source: NOAA Global Monitoring Laboratory. The Mauna Loa series is the longest continuous record of carbon dioxide in the air. NOAA CO₂ data
How big is the ozone hole?
The Antarctic ozone hole forms each southern spring. The thinnest part of the layer measures 143 Dobson units; a healthy layer reads about 300.
Source: NASA Ozone Watch, 3 Nov. Records begin in 1979. NASA Ozone Watch