← Back to the summary for 25 Oct
The detail behind the day
The equatorial Pacific is the warmest on record.
Earthquakes of magnitude 4.5 or more
No earthquakes of this size were recorded.
Counting smaller ones too, 1 earthquakes of magnitude 2.5 or more were logged worldwide. How many small quakes are recorded depends on how many seismometers are nearby, so this number is not compared with other years.
Source: USGS Earthquake Hazards Program. Magnitudes and places can be revised by USGS for weeks after an event. The day is not over, so this list can still grow.
Tropical storms and cyclones
| Alert | Storm | Reported intensity |
|---|---|---|
| NASA tracker | Hurricane Trudy | 30 kts |
| NASA tracker | Hurricane Vance | 85 kts |
| NASA tracker | Super Typhoon Champi | 50 kts |
| NASA tracker | Tropical Cyclone Agueda | 30 kts |
The alert colour reflects the likely effect on people, not just wind speed. Red is the highest; green is a storm with little expected impact.
Sources: Global Disaster Alert and Coordination System (GDACS) and NASA EONET.
Volcanoes
| Alert | Volcano |
|---|---|
| Orange | Great Sitkin: alert level watch Official notice |
| Yellow | Ahyi Seamount: alert level advisory Official notice |
| Yellow | Kilauea: alert level advisory Official notice |
| Yellow | Shishaldin: alert level advisory Official notice |
32 more volcanoes on NASA’s activity tracker
| Alert | Volcano |
|---|---|
| NASA tracker | Aira Volcano, Japan |
| NASA tracker | Ambae Volcano, Vanuatu |
| NASA tracker | Bezymianny Volcano, Russia |
| NASA tracker | Dukono Volcano, Indonesia |
| NASA tracker | Fuego Volcano, Guatemala |
| NASA tracker | Ibu Volcano, Indonesia |
| NASA tracker | Ivao Group Volcano, Russia |
| NASA tracker | Kanlaon Volcano, Philippines |
| NASA tracker | Kikai Volcano, Japan |
| NASA tracker | Kilauea Volcano, Hawaii |
| NASA tracker | Krasheninnikov Volcano, Russia |
| NASA tracker | Langila Volcano, Papua New Guinea |
| NASA tracker | Lewotobi Volcano, Indonesia |
| NASA tracker | Lewotolok Volcano, Indonesia |
| NASA tracker | Marapi Volcano, Indonesia |
| NASA tracker | Masaya Volcano, Nicaragua |
| NASA tracker | Mayon Volcano, Philippines |
| NASA tracker | Merapi Volcano, Indonesia |
| NASA tracker | Nevados del Chillan Volcano, Chile |
| NASA tracker | Popocatepetl Volcano, Mexico |
| NASA tracker | Puracé Volcano, Colombia |
| NASA tracker | Reventador Volcano, Ecuador |
| NASA tracker | Rincon de la Vieja Volcano, Costa Rica |
| NASA tracker | Sabancaya Volcano, Peru |
| NASA tracker | Sangay Volcano, Ecuador |
| NASA tracker | Santa Maria Volcano, Guatemala |
| NASA tracker | Semeru Volcano, Indonesia |
| NASA tracker | Sheveluch Volcano, Russia |
| NASA tracker | Stromboli Volcano, Italy |
| NASA tracker | Suwanosejima Volcano, Japan |
| NASA tracker | Telica Volcano, Nicaragua |
| NASA tracker | Titan Ridge Volcano, Papua New Guinea |
Colour codes are the aviation scale: green is normal, yellow an advisory, orange a watch, red a warning. USGS rates US volcanoes only; the others come from NASA’s tracker of volcanoes with recent activity reports.
Sources: USGS Volcano Hazards Program, NASA EONET and USGS earthquakes for Campi Flegrei and Vesuvius.
Floods, weather warnings and other events
England: flood warnings and alerts
| Level | Area |
|---|---|
| Warning | Bessy Brook at Lostock |
| Warning | Cumbrian coastline from Gretna to Silloth including Port Carlisle, Skinburness and Rockcliffe |
| Warning | Cumbrian coastline from Silloth to St Bees including Maryport, Flimby, Workington and Whitehaven |
| Warning | Cumbrian coastline from Silloth to St Bees, between Allonby and Whitehaven |
| Warning | Cumbrian coastline from St Bees Head to Haverigg, along the coast from North Head to Haverigg |
| Warning | Irish Sea at New Brighton |
| Warning | Keswick Campsite |
| Warning | Lee's Bridge at Astley Bridge Central |
| Warning | Millingford Brook at Ashton in Makerfield |
| Warning | Rainford Brook at Rainford North |
| Warning | River Barle from Simonsbath to Brushford, including Withypool |
| Warning | River Exe at Winsford and Bridgetown |
| Warning | Skirden Beck and Kirk Beck at Bolton by Bowland |
| Warning | Tue Brook at Clubmoor |
A flood warning means flooding is expected; an alert means it is possible. Alerts are counted but not listed one by one.
United States: severe and extreme warnings
| Hazard | Severe | Extreme |
|---|---|---|
| Flood | 43 | 0 |
| Thunderstorm and hail | 10 | 0 |
| Winter weather | 5 | 0 |
| Wind | 4 | 0 |
Each figure is the peak number of warnings in force at once in a state, added across states. It shows scale, not an exact count of separate events.
Sources: Environment Agency flood warnings (Open Government Licence v3.0), US National Weather Service, NASA EONET. Counts are for the moment the page was last updated.
Space weather
| Kind of event | Highest level reached |
|---|---|
| Geomagnetic storm | None |
| Radio blackout | None |
| Solar radiation storm | None |
Highest Kp each day: 18 Oct 2.3 · 19 Oct 1.0 · 20 Oct 3.0 · 21 Oct 4.7 · 22 Oct 4.3 · 23 Oct 4.3 · 24 Oct 2.0
Source: NOAA Space Weather Prediction Center.
Climate readings
| Measure | Latest value | Reading date | How it compares | Source |
|---|---|---|---|---|
| Pacific sea temperature (Niño 3.4) | +3.3 °C against normal | Week to 14 Oct | 1st highest weekly reading since 1981 | NOAA CPC |
| Arctic sea ice extent | 6.7 million km² | 17 Oct | 21% below the 1981–2010 average; 11th lowest of 44 years for the date | NSIDC |
| Antarctic sea ice extent | 16.2 million km² | 17 Oct | 11% below the 1981–2010 average; 2nd lowest of 44 years for the date | NSIDC |
| Carbon dioxide, Mauna Loa | 426.5 ppm | 22 Oct | 1.5 ppm higher than a year earlier | NOAA GML |
| Antarctic ozone hole | 23.4 million km² | 21 Oct | 3rd largest for the date since 1979; thinnest part 121 Dobson units | NASA |
These move slowly, so the latest reading may be a few days old. The summary page draws each one as a chart.