Newnan
Population 45,867 (2025)
10 tropical storms and hurricanes have passed within 50 miles of Newnan since 1851; the strongest at closest approach was Eloise in 1975 (Tropical storm).
Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed
- Tornado damage paths within 25 miles since 1950104
- Tropical cyclone tracks within 100 miles since 1851, wider where stronger20
At a glance
Tornado paths within 25 miles, tropical cyclone tracks within 100 miles and wildfire perimeters within 25 miles of the city centre. Storm events, flood insurance claims and disaster declarations are for Coweta County. Earthquakes within 50 miles, volcanoes within 100 miles and smoke days are measured from the city centre; river and tide gauges, tsunami and landslide records and the drought index are for Coweta County.
Strongest tornado
EF4
March 25, 2021, 38.6 mile path
Strongest tropical cyclone
TS
Tropical storm Eloise, 1975, 37.8 miles away
Tornadoes
About one tornado a year since 1950, 7 of them rated F3/EF3 or stronger.
Strongest
March 25, 2021
EF4, 38.6 mile path
1,850 yards wide.
Deadliest
April 27, 2011
2 killed, EF3
0 injured along the whole path.
Most recent
Tuesday, May 27, 2025
EF1, 2.6 mile path
Within the past year.
Every recorded tornado
| May 27, 2025 | EF1 | 2.6 | 0 | 0 |
| May 27, 2025 | EF0 | 2.6 | 0 | 0 |
| Apr 7, 2025 | EF1 | 13.9 | 0 | 0 |
| Mar 31, 2025 | EF0 | 0.2 | 0 | 0 |
| Mar 31, 2025 | EF0 | 5.0 | 0 | 0 |
| Mar 31, 2025 | EF0 | 5.3 | 0 | 0 |
| Feb 16, 2025 | EF0 | 1.5 | 0 | 0 |
| Dec 29, 2024 | EF0 | 1.6 | 0 | 0 |
| Dec 29, 2024 | EF0 | 3.2 | 0 | 0 |
| Dec 29, 2024 | EF1 | 0.2 | 1 | 0 |
| Dec 29, 2024 | EF1 | 24.6 | 0 | 0 |
| May 27, 2024 | EF1 | 3.5 | 0 | 0 |
| Jan 9, 2024 | EF0 | 1.6 | 0 | 0 |
| Jan 12, 2023 | EF1 | 10.8 | 0 | 0 |
| Jan 12, 2023 | EF1 | 7.6 | 0 | 0 |
| Jan 12, 2023 | EF2 | 21.6 | 0 | 0 |
| Jan 12, 2023 | EF3 | 31.2 | 18 | 0 |
| Jan 12, 2023 | EF2 | 23.4 | 0 | 0 |
| Jan 12, 2023 | EF2 | 35.8 | 8 | 0 |
| Jan 4, 2023 | EF1 | 2.5 | 0 | 0 |
| Jan 3, 2023 | EF0 | 0.6 | 0 | 0 |
| Aug 17, 2021 | EF0 | 3.4 | 0 | 0 |
| May 3, 2021 | EF1 | 5.7 | 0 | 0 |
| May 3, 2021 | EF1 | 1.4 | 0 | 0 |
| Mar 25, 2021 | EF4 | 38.6 | 0 | 0 |
| Mar 1, 2021 | EF1 | 0.7 | 0 | 0 |
| Oct 10, 2020 | EF0 | 1.0 | 0 | 0 |
| Oct 10, 2020 | EF0 | 0.3 | 0 | 0 |
| Apr 13, 2020 | EF0 | 2.8 | 0 | 0 |
| Feb 24, 2019 | EF1 | 2.0 | 0 | 0 |
| Feb 12, 2019 | EF0 | 0.6 | 0 | 0 |
| Mar 19, 2018 | EF2 | 0.5 | 0 | 0 |
| Feb 7, 2018 | EF1 | 5.3 | 0 | 0 |
| Apr 5, 2017 | EF1 | 4.0 | 0 | 0 |
| Apr 3, 2017 | EF1 | 4.1 | 0 | 0 |
| Apr 3, 2017 | EF1 | 2.4 | 0 | 0 |
| Nov 18, 2015 | EF1 | 2.6 | 1 | 0 |
| Nov 18, 2015 | EF1 | 0.2 | 0 | 0 |
| Oct 14, 2014 | EF0 | 3.0 | 0 | 0 |
| Apr 28, 2014 | EF2 | 5.7 | 0 | 0 |
| Apr 7, 2014 | EF0 | 0.9 | 3 | 0 |
| Apr 28, 2013 | EF0 | 0.1 | 0 | 0 |
| Mar 18, 2013 | EF2 | 13.3 | 0 | 0 |
| Jan 21, 2012 | EF1 | 1.0 | 0 | 0 |
| Dec 22, 2011 | EF0 | 2.9 | 0 | 0 |
| Dec 22, 2011 | EF1 | 1.6 | 0 | 0 |
| Dec 22, 2011 | EF1 | 1.1 | 0 | 0 |
| Apr 27, 2011 | EF3 | 21.7 | 0 | 2 |
| Apr 27, 2011 | EF1 | 17.0 | 1 | 0 |
| Feb 18, 2009 | EF0 | 0.0 | 0 | 0 |
| Feb 18, 2009 | EF2 | 20.4 | 0 | 0 |
| Oct 8, 2008 | EF0 | 0.1 | 0 | 0 |
| May 11, 2008 | EF2 | 0.1 | 0 | 0 |
| May 11, 2008 | EF2 | 3.8 | 0 | 0 |
| May 11, 2008 | EF2 | 1.0 | 0 | 0 |
| Mar 7, 2008 | EF1 | 7.0 | 1 | 0 |
| Feb 26, 2008 | EF1 | 2.0 | 1 | 0 |
| Feb 17, 2008 | EF1 | 4.0 | 0 | 0 |
| Jan 7, 2007 | EFU | 4.1 | 0 | 0 |
| Jan 5, 2007 | EFU | 1.7 | 0 | 0 |
| Jan 5, 2007 | EFU | 5.4 | 0 | 0 |
| Jan 2, 2006 | F3 | 3.0 | 3 | 0 |
| Jan 2, 2006 | F2 | 7.0 | 0 | 0 |
| Aug 29, 2005 | F2 | 5.5 | 3 | 1 |
| Jul 6, 2005 | F0 | 1.0 | 0 | 0 |
| Jul 6, 2005 | F0 | 0.1 | 0 | 0 |
| Jul 6, 2005 | F0 | 0.3 | 0 | 0 |
| May 7, 2003 | F0 | 0.1 | 0 | 0 |
| May 7, 2003 | F0 | 0.2 | 0 | 0 |
| Mar 24, 1994 | F0 | 6.0 | 2 | 0 |
| Feb 21, 1993 | F1 | 12.0 | 1 | 0 |
| Feb 21, 1993 | F1 | 7.0 | 1 | 0 |
| Nov 22, 1992 | F2 | 10.0 | 3 | 0 |
| Feb 16, 1990 | F2 | 7.0 | 11 | 0 |
| Nov 15, 1989 | F2 | 7.0 | 14 | 0 |
| Nov 15, 1989 | F2 | 4.0 | 0 | 0 |
| Mar 5, 1989 | F3 | 14.0 | 23 | 0 |
| Mar 5, 1989 | F1 | 1.9 | 0 | 0 |
| Mar 5, 1989 | F2 | 45.5 | 6 | 1 |
| Apr 22, 1984 | F0 | 0.3 | 0 | 0 |
| Apr 22, 1984 | F0 | 0.3 | 0 | 0 |
| Mar 28, 1984 | F1 | 5.0 | 0 | 0 |
| Nov 20, 1983 | F1 | 5.0 | 0 | 0 |
| Jul 8, 1982 | F1 | 0.3 | 0 | 0 |
| Apr 13, 1980 | F1 | 50.7 | 4 | 0 |
| Jul 12, 1979 | F0 | 0.1 | 0 | 0 |
| Apr 13, 1979 | F1 | 1.0 | 0 | 0 |
| May 14, 1976 | F1 | 0.3 | 1 | 0 |
| May 14, 1976 | F1 | 0.1 | 0 | 0 |
| Mar 13, 1975 | F1 | 1.0 | 0 | 0 |
| Mar 29, 1974 | F1 | 0.5 | 0 | 0 |
| May 27, 1973 | F2 | 0.8 | 0 | 0 |
| May 11, 1973 | F1 | 0.1 | 0 | 0 |
| Feb 26, 1971 | F0 | 0.5 | 0 | 0 |
| Apr 2, 1970 | F3 | 0.3 | 0 | 0 |
| Mar 6, 1967 | F1 | 0.5 | 0 | 0 |
| Sep 18, 1965 | F0 | 0.1 | 0 | 0 |
| Dec 24, 1964 | F3 | 75.4 | 1 | 0 |
| Mar 17, 1963 | F1 | 26.8 | 0 | 0 |
| Nov 21, 1962 | F1 | 1.0 | 0 | 0 |
| Aug 31, 1961 | F1 | 0.5 | 1 | 0 |
| Dec 5, 1954 | F1 | 4.5 | 0 | 0 |
| Dec 5, 1954 | F1 | 0.2 | 0 | 0 |
| Jun 4, 1950 | F0 | 2.0 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond this area.
- Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.
Storm Prediction Center severe weather database, 1950 to 2025.
Hurricanes and tropical storms
10 passed within 50 miles since 1851; none at hurricane strength.
Strongest within 50 miles
September 23, 1975
Eloise, Tropical storm
37.8 miles at closest approach, winds near 61 mph.
Most recent
September 27, 2024
Helene, Tropical storm
94.9 miles at closest approach.
Every storm within 100 miles
| Helene | 2024 | 94.9 | Tropical storm |
| Zeta | 2020 | 64.4 | Tropical storm |
| Michael | 2018 | 96.0 | Tropical storm |
| Opal | 1995 | 78.3 | Tropical storm |
| Eloise | 1975 | 37.8 | Tropical storm |
| Unnamed | 1965 | 79.2 | Tropical storm |
| Unnamed | 1932 | 86.0 | Post-tropical |
| Unnamed | 1915 | 15.4 | Tropical storm |
| Unnamed | 1912 | 13.2 | Tropical storm |
| Unnamed | 1907 | 21.9 | Post-tropical |
| Unnamed | 1906 | 59.3 | Tropical storm |
| Unnamed | 1903 | 2.2 | Tropical storm |
| Unnamed | 1902 | 14.7 | Post-tropical |
| Unnamed | 1901 | 65.1 | Post-tropical |
| Unnamed | 1901 | 92.0 | Tropical storm |
| Unnamed | 1898 | 11.1 | Tropical storm |
| Unnamed | 1898 | 42.7 | Tropical storm |
| Unnamed | 1896 | 62.4 | Tropical storm |
| Unnamed | 1893 | 23.0 | Tropical storm |
| Unnamed | 1889 | 63.8 | Tropical storm |
| Unnamed | 1882 | 47.0 | Tropical storm |
| Unnamed | 1881 | 84.6 | Tropical storm |
| Unnamed | 1859 | 19.1 | Tropical storm |
| Unnamed | 1852 | 39.5 | Tropical storm |
- Tropical storms and hurricanes (34 kt or more, still tropical) at closest approach. Post-tropical remnants with gale-force winds are listed but not counted. Direct: track within 50 miles; near: within 100 miles. Distance is measured to the county boundary for counties and to the city centre for cities, using positions interpolated hourly between HURDAT2 fixes.
National Hurricane Center HURDAT2, 1851 to 2025.
Wildfire and smoke
No large wildfire has been mapped within 25 miles since satellite mapping began in 1984.
Smoke overhead
Smokiest year
2023: 47 days
Heavy smoke on 4 days in 2023, the most of any year.
Last 10 years
10.5 days a year
Medium or heavy smoke, 2016 to 2025.
2025
9 days
Medium or heavy smoke. 35 so far in 2026.
- A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.
NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.
Floods and flood insurance
38 federal flood insurance claims since 1982, with $461,000 paid.
Flood insurance figures are for Coweta County, the county that contains Newnan.
Most claims in one year
2005: 5 claims
$115,000 paid.
Claims by ZIP code
| 30263 | 13 | $178,000 |
| 30277 | 12 | $59,000 |
| 30265 | 10 | $170,000 |
Flood events since 1996
- Flash Flood21
- Flood11
- Heavy Rain8
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.
River crests
River gauges in Coweta County, the county that contains Newnan.
Most severe crest
September 27, 2024
Shoal Creek at GA 54 near Sharpsburg, 12.90 ft
2.90 feet above the 10.0 ft flood stage; minor flooding by today’s categories.
| Sep 27, 2024 | Shoal Creek at GA 54 near Sharpsburg | 12.90 | +2.90 |
| Aug 3, 2018 | Shoal Creek at GA 54 near Sharpsburg | 11.92 | +1.92 |
| Dec 28, 2018 | Shoal Creek at GA 54 near Sharpsburg | 11.45 | +1.45 |
| Dec 30, 2021 | Shoal Creek at GA 54 near Sharpsburg | 11.27 | +1.27 |
| Dec 24, 2015 | Shoal Creek at GA 54 near Sharpsburg | 10.98 | +0.98 |
| Apr 19, 2019 | Shoal Creek at GA 54 near Sharpsburg | 10.83 | +0.83 |
| Feb 19, 2020 | Shoal Creek at GA 54 near Sharpsburg | 10.51 | +0.51 |
| Jan 25, 2010 | Shoal Creek at GA 54 near Sharpsburg | 10.34 | +0.34 |
| Mar 9, 2024 | Shoal Creek at GA 54 near Sharpsburg | 10.16 | +0.16 |
| Oct 11, 2020 | Shoal Creek at GA 54 near Sharpsburg | 10.05 | +0.05 |
River gauges
| Shoal Creek at GA 54 near Sharpsburg | 10.0 | 12.90 ft | 0 |
- Crests are the highest and the recent crests the National Weather Service lists for each river gauge in the county that has a flood stage, not every flood. Flood categories use each gauge's current flood stages; crests from before levees, dams or channel changes may not be comparable. Crests measured on an old datum are left out of the rankings.
NOAA National Water Prediction Service gauge records, retrieved October 30, 2026.
Drought
In severe drought or worse for 168 of 1,581 months since 1895 (11%); the longest spell lasted 24 months.
The drought index is for Coweta County, the county that contains Newnan.
168
Months in severe drought or worse since 1895
52
Months in extreme drought
11%
Share of all months, severe or worse
35
Drought reports to the Weather Service since 1996
Lowest reading
September 1925
−6.20, extreme drought
Longest severe spell
24 months
February 2007 to January 2009.
Latest month
September 2026
−2.90, moderate drought
Last severe month: April 2026.
- The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.
NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.
Earthquakes
2 earthquakes of magnitude 2.5 or more within 50 miles since 1982; none reached magnitude 4.
0
Magnitude 3+ within 50 miles since 1973
0
Magnitude 4+ within 50 miles since 1900
0
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
October 30, 1982
Magnitude 2.9
9 km S of Hamilton, Georgia; 49.0 miles away, 0.0 miles deep.
- Earthquakes of magnitude 2.5 or more in the USGS Comprehensive Catalog since 1900. Within 50 miles means the epicentre lies within 50 miles of the city centre.
- Small earthquakes were under-recorded before the modern seismic networks of the 1970s and are still missed in remote areas, so early decades read low. Magnitudes are as the catalogue reports them and mix scales (moment, local and body-wave).
USGS ANSS Comprehensive Earthquake Catalog, 1900 to present, retrieved October 30, 2026.
Severe weather and other events
793 events in the National Weather Service record for Coweta County, 714 of them since 1996.
88
Hail reports, 1 inch or larger
5
Hail, 2 inches or larger
222
Damaging gusts, 58 mph+
26
Winter weather events since 1996
12
Heat events since 1996
14
Cold events since 1996
Largest hail
February 18, 2009
4.25 inches
Strongest measured or estimated gust
March 31, 2020
81 mph
More event types since 1996
| Lightning | 52 | 0 |
| Dense fog and smoke | 2 | 0 |
Costliest events since 1996
- Mar 25, 2021Tornado$20.0 million
National Weather Service narrative
A National Weather Service survey determined that an EF4 tornado with maximum wind speeds 170 MPH and a maximum path width of 1850 yards occurred in Coweta County. The Heard County tornado crossed into Coweta County along Bob Wilson Road and gained strength as it moved east-northeast crossing JD Walton Road and travelled up Smokey Road with trees falling on some homes. Wind speeds quickly increased to over 150 MPH, EF3 intensity, near Timberland Trail on the southwest side of Newnan. Many homes had major damage and one home had all but the back wall collapse. The family survived with no injuries by taking shelter in their bathtub. The tornado continued east-northeast crossing…
- Mar 26, 2011Hail$6.5 million
National Weather Service narrative
Literally dozens of reports of large damaging hail were received from the public across southern Coweta county from Grantville, Moreland, eastward to Senoia. Most of the hail was the size of golf balls, but hail the size of baseballs, tennis balls, and even isolated reports of grapefruit-sized hail were received from the Grantville area eastward to just south of Moreland. Hail decreased in size to half-dollars by the time it reached areas just south of Senoia. Significant accumulations of hail were noted on the ground in the area and much of the region was blanketed with a hail cover for an hour or more. Extensive damage was observed to vehicles and roofs of homes in the area.
- Feb 18, 2009Hail$4.0 million
National Weather Service narrative
Very large hail was observed in far northeast Coweta county. Numerous reports of large hail were also received from northeast Coweta county. The hail fell from a supercell that tracked across the northeast part of the county from just south of Palmetto, along the Fulton-Coweta county line to just east of Cannongate along the Fayette county line. The large hail storm continued into northern Fayette county as well. The Coweta County Emergency Management County Director reported 4.25 inch diameter hail approximately four miles northeast of Madras near the Fulton county line. Several reports of golf ball-sized hail were received from the public in the Cannongate area. Extensive damage…
- Jul 17, 2013Hail$1.1 million
National Weather Service narrative
The public reported quarter to golf ball sized hail south of Palmetto.
- Mar 18, 2013Hail$1.1 million
National Weather Service narrative
The Coweta County Emergency Manager reported golfball sized hail in Grantville.
- Apr 4, 2011Hail$1.1 million
National Weather Service narrative
The public observed golf ball-sized hail approximately five miles southwest of Palmetto near Cannongate near the intersection of Georgia Highway 54 and U.S. Highway 29.
- Jun 3, 2015Hail$1.0 million
National Weather Service narrative
A report of dime to golf ball sized hail at I-85 and Bullsboro drive in Newnan was received on social media.
- Jan 22, 2000Ice Storm, Coweta$980,000
National Weather Service narrative
Wintry precipitation plagued the northern third of Georgia beginning Saturday and continued into Sunday. A shallow cold airmass with single-digit dewpoint temperatures was in place over north Georgia, with temperatures in the upper 20s to lower 30s over much of the area. An upper level disturbance moved rapidly over the area in a fast zonal flow, bringing an increase in mid-tropospheric moisture. At the same time, lower level moisture spread into the area from the Gulf of Mexico. Precipitation began falling into the colder layer of air near the surface by mid-morning on the 22nd. The mixture of light rain, snow and sleet had spread from northwest to northeast Georgia by early…
- Feb 18, 2009Hail$700,000
National Weather Service narrative
The public observed golf ball-sized hail in the Newnan area and nickel-sized hail south of Sharpsburg. Nickel-sized hail was observed around Turin.
- Apr 4, 2008Hail$700,000
National Weather Service narrative
The public observed golf ball-sized hail in northern Coweta county, just southwest of Roscoe and half-dollar-sized hail about five miles north of Newnan. A storm spotter observed nickel-sized hail in the Sargent area.
- Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.
NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.
Weather records
From Atlanta, 12.2 miles from the city centre, with records from 1994.
- All-time high
- 105°F2 times, most recently Jul 1, 2012
- All-time low
- 2°FJan 30, 2014
- Warmest night
- 77°F3 times, most recently Jun 30, 2024
- Coldest day
- 26°FJan 7, 2014
- Wettest day
- 6.44 inOct 4, 1995
- Hottest year
- 2019mean 65.8°F
- Coldest year
- 1997mean 59.5°F
- Wettest year
- 201567.49 in
- Driest year
- 200731.55 in
Station Atlanta (USW00053819), 972 ft elevation, 12.2 miles from the city centre. Daily records from 1994 to October 27, 2026; 99.6% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.
NOAA NCEI Global Historical Climatology Network Daily.
Federal disaster declarations
16 since 1953. The most recent: Hurricane Isaias, October 9, 2026.
Declarations for Coweta County.
| Oct 9, 2026 | Tropical Storm | EM-3657-GA |
| Jan 24, 2026 | Winter Storm | EM-3642-GA |
| Sep 26, 2024 | Tropical Storm | EM-3616-GA |
| May 5, 2021 | Severe Storm | DR-4600-GA |
| Mar 29, 2020 | Biological | DR-4501-GA |
| Mar 13, 2020 | Biological | EM-3464-GA |
| Sep 15, 2017 | Hurricane | DR-4338-GA |
| Sep 8, 2017 | Hurricane | EM-3387-GA |
| Mar 6, 2014 | Severe Ice Storm | DR-4165-GA |
| Feb 11, 2014 | Severe Ice Storm | EM-3368-GA |
| Apr 29, 2011 | Severe Storm | DR-1973-GA |
| Sep 24, 2009 | Severe Storm | DR-1858-GA |
| Sep 5, 2005 | Hurricane | EM-3218-GA |
| Oct 10, 1995 | Hurricane | DR-1071-GA |
| Jul 7, 1994 | Tornado | DR-1033-GA |
| Jul 20, 1977 | Drought | EM-3044-GA |
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.
Sources and vintage
Every number on this page comes from these public records.
- Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
- Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
- Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
- Storm events NOAA NCEI Storm Events Database, through 2026.
- Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
- Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
- Weather records NOAA NCEI Global Historical Climatology Network Daily, station USW00053819.
- River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
- Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
- Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
- Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.
Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.