Borden County

Population 567 (2025) 897 sq mi

Large wildfires have burned 13,363 acres of Borden County since 1984, 106th most of 254 counties in Texas; the largest was the Borden County Complex Fire in 2008.

Hazard fingerprint for Borden County Tornado: 19th percentile. Tropical: 0th percentile. Wildfire: 50th percentile. Flood: 18th percentile. Hail & wind: 19th percentile. Heat: 4th percentile. Cold: 0th percentile. Winter: 13th percentile. TORTROPFIREFLOODSEVEREHEATCOLDWINTER

Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed

2026
  • Tornado damage paths since 195011
  • Tropical cyclone tracks within 100 miles since 1851, wider where stronger1
  • Wildfire burn scars since 19842

At a glance

The record for Borden County in eight numbers. Each links to its section below.

Acres burned since 1984

13,363

106th of 254 in Texas

2 large fires; the largest was Borden County Complex, 2008

Details

Tornadoes since 1950

11

224th of 254 in Texas

Fewer than the typical Texas county, which has had 35

Details

Tropical cyclones within 100 mi

1

None within 50 miles since 1851

Details

Strongest tornado

F2

June 5, 2005, 5.0 mile path

Largest earthquake within 50 mi

5.2magnitude

December 16, 2022, 35.1 miles away

Details

Federal disaster declarations

15

Most recent: Severe Winter Storms, 2021

Details

Record high

115°F

June 28, 1994

Details

Record low

−1°F

Reached 3 times, most recently February 15, 2021

Details

Tornadoes

About one every 6.9 years since 1950, none rated F3/EF3 or stronger.

Strongest

June 5, 2005

F2, 5.0 mile path

1,300 yards wide.

Most recent

Sunday, May 5, 2019

EF0, 0.4 mile path

7 years ago.

Tornadoes by decade Doppler radar era² 1950s: 1 1 1960s: 1 1 1970s: 0 1980s: 1 1 1990s: 1 1 2000s: 5 5 2010s: 2 2 2020s: 0 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 0 M: 0 A: 2 M: 3 J: 6 6 J: 0 A: 0 S: 0 O: 0 N: 0 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes in Borden County since 1950
May 5, 2019EF00.45000
May 28, 2015EF01.15000
Jun 5, 2005F25.01,30000
Jun 5, 2005F00.17500
Jun 5, 2005F01.010000
Jun 5, 2005F00.17500
Jun 5, 2005F00.87500
May 7, 1991F00.54000
Apr 28, 1985F00.510000
Jun 13, 1969F10.52000
Apr 21, 1954F00.11000
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Borden County: 0.
  2. 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

1 tropical cyclone passed within 100 miles since 1851, none within 50.

Most recent

August 31, 1942

Unnamed storm, Tropical storm

74.2 miles at closest approach.

Every storm within 100 miles

Tropical cyclones within 100 miles
Unnamed194274.2Tropical storm40Category 3
  1. 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

13,363 acres burned in 2 large fires since 1984, equal to 2.3% of the land.

Largest

March 31, 2008

Borden County Complex, 11,285 acres

11,275 acres inside Borden County.

Most recent

March 31, 2008

Borden County Complex

11,285 acres in total.

Acres burned since 1984, cumulative 1992: 2,0872008: 11,276 13,363 acres 198519901995200020052010201520202025
Running total of acres burned inside the county (line) and each year’s acres (bars).

Every large fire

Large wildfires since 1984
Borden County Complex200811,27511,285
Unnamed19922,0872,090
  1. Large fires mapped by the Monitoring Trends in Burn Severity program since 1984: 1,000 acres or more in the West, 500 or more in the East. Prescribed burns are excluded. Acres here are the part of each perimeter inside this place.

Monitoring Trends in Burn Severity (USGS and U.S. Forest Service), 1984 to 2026.

Smoke overhead

Smokiest year

2021: 26 days

Heavy smoke on 5 days in 2021, the most of any year.

Last 10 years

8.5 days a year

Medium or heavy smoke, 2016 to 2025.

2025

1 day

Medium or heavy smoke. 9 so far in 2026.

Days with medium or heavy smoke overhead, by year 2011: 11 2012: 7 2013: 5 2014: 0 2015: 2 2016: 0 2017: 6 2018: 2 2019: 2 2020: 22 2021: 26 26 2022: 11 2023: 11 2024: 4 2025: 1 201120122013201420152016201720182019202020212022202320242025
Days each year on which a satellite-traced plume of medium or heavy smoke covered the county’s population centre, 2011 to 2025.
  1. 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

No federal flood insurance claims are recorded for this county.

Flood events since 1996

  • Flash Flood21
  • Flood1

OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.

Drought

In severe drought or worse for 164 of 1,581 months since 1895 (10%); the longest spell lasted 30 months.

164

Months in severe drought or worse since 1895

55

Months in extreme drought

10%

Share of all months, severe or worse

16

Drought reports to the Weather Service since 1996

Lowest reading

August 2011

−6.17, extreme drought

Longest severe spell

30 months

October 1951 to March 1954.

Latest month

September 2026

−4.37, extreme drought

Months in severe drought or worse, by year 1895: 0 1896: 0 1897: 0 1898: 0 1899: 0 1900: 0 1901: 0 1902: 1 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 0 1909: 0 1910: 1 1911: 0 1912: 0 1913: 0 1914: 0 1915: 0 1916: 0 1917: 7 1918: 9 1919: 0 1920: 0 1921: 0 1922: 0 1923: 0 1924: 0 1925: 0 1926: 0 1927: 0 1928: 0 1929: 0 1930: 1 1931: 0 1932: 0 1933: 0 1934: 7 1935: 4 1936: 1 1937: 0 1938: 0 1939: 0 1940: 0 1941: 0 1942: 0 1943: 0 1944: 0 1945: 0 1946: 3 1947: 1 1948: 0 1949: 0 1950: 0 1951: 5 1952: 12 12 1953: 12 1954: 9 1955: 4 1956: 9 1957: 1 1958: 0 1959: 0 1960: 0 1961: 0 1962: 0 1963: 0 1964: 0 1965: 0 1966: 0 1967: 1 1968: 0 1969: 0 1970: 0 1971: 0 1972: 0 1973: 0 1974: 2 1975: 0 1976: 0 1977: 0 1978: 0 1979: 0 1980: 0 1981: 0 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 0 1988: 0 1989: 0 1990: 0 1991: 0 1992: 0 1993: 0 1994: 1 1995: 0 1996: 3 1997: 0 1998: 4 1999: 2 2000: 4 2001: 0 2002: 0 2003: 0 2004: 0 2005: 0 2006: 1 2007: 0 2008: 0 2009: 0 2010: 0 2011: 9 2012: 12 2013: 6 2014: 1 2015: 0 2016: 0 2017: 0 2018: 3 2019: 0 2020: 0 2021: 0 2022: 9 2023: 10 2024: 1 2025: 0 18951905191519251935194519551965197519851995200520152025
Months each year with a Palmer index of −3 or lower, 1895 to 2025. Twelve means the whole year.
  1. 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

21 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 5.2 in 2022.

0

Magnitude 2.5+ inside the county since 1973

226

Magnitude 3+ within 50 miles since 1973

21

Magnitude 4+ within 50 miles since 1900

3

Magnitude 5+ within 50 miles since 1900

Largest within 50 miles

December 16, 2022

Magnitude 5.2

Range Hill, Texas; 35.1 miles away, 5.1 miles deep.

Most recent, magnitude 3 or more

October 17, 2026

Magnitude 3.1

8 km NW of Stanton, Texas; 26.4 miles away.

Earthquakes of magnitude 3 or more within 50 miles, by year 1973: 0 1974: 0 1975: 0 1976: 0 1977: 2 1978: 1 1979: 0 1980: 0 1981: 0 1982: 1 1983: 0 1984: 2 1985: 0 1986: 1 1987: 0 1988: 0 1989: 0 1990: 0 1991: 0 1992: 0 1993: 0 1994: 0 1995: 0 1996: 0 1997: 0 1998: 0 1999: 0 2000: 0 2001: 0 2002: 0 2003: 0 2004: 0 2005: 0 2006: 0 2007: 0 2008: 1 2009: 0 2010: 4 2011: 13 2012: 0 2013: 1 2014: 3 2015: 1 2016: 2 2017: 0 2018: 3 2019: 2 2020: 9 2021: 22 2022: 31 2023: 43 2024: 46 46 2025: 25 19731978198319881993199820032008201320182023
Per year, 1973 to 2025.

Every earthquake of magnitude 4 or more within 50 miles

Earthquakes of magnitude 4 or more within 50 miles
Jan 26, 20264.35.54.123 km SW of Snyder, Texas
Oct 12, 20254.314.43.35 km WSW of Westbrook, Texas
Feb 28, 20254.817.54.226 km SW of Ackerly, Texas
Sep 16, 20245.122.93.82024 North of Tarzan, Texas Earthquake
Jul 27, 20244.531.62.113 km NNE of Hermleigh, Texas
Jul 26, 20245.132.82.017 km NNE of Hermleigh, Texas
Jul 24, 20244.031.51.916 km NNE of Hermleigh, Texas
Jul 22, 20244.431.82.016 km NNE of Hermleigh, Texas
Jul 22, 20244.932.82.017 km NNE of Hermleigh, Texas
Apr 10, 20244.416.12.921 km N of Stanton, Texas
Nov 23, 20234.220.94.731 km WSW of Ackerly, Texas
Nov 4, 20234.117.04.320 km N of Stanton, Texas
Nov 4, 20234.116.84.220 km N of Stanton, Texas
Feb 16, 20234.733.44.915 km NE of Hermleigh, Texas
Dec 16, 20225.235.15.1Range Hill, Texas
Dec 27, 20214.617.35.217 km N of Stanton, Texas
Dec 31, 20204.017.03.118 km N of Stanton, Texas
Sep 30, 20194.018.33.123 km NNE of Snyder, Texas
Sep 11, 20114.324.83.120 km NE of Snyder, Texas
Jun 16, 19784.424.06.230 km SW of Jayton, Texas
Jun 7, 19774.025.43.126 km SW of Jayton, Texas
  1. 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 county boundary (or inside the county).
  2. 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

265 events in the National Weather Service record, 238 of them since 1996.

75

Hail reports, 1 inch or larger

15

Hail, 2 inches or larger

70

Damaging gusts, 58 mph+

17

Winter weather events since 1996

1

Heat events since 1996

0

Cold events since 1996

Largest hail

April 30, 2012

4.25 inches

Strongest measured or estimated gust

June 4, 2020

110 mph

Costliest events since 1996

  1. Aug 1, 1996Drought, Borden$12.6 million
    National Weather Service narrative

    Toward the latter part of August plentiful rains were at last falling over all of the area. This pattern was started by the tropical plume that brought Hurricane Dolly westward through the Bay of Campeche to near Tampico, Mexico, across the Central America to where she dissipated in the eastern North Pacific. Although Dolly was over 1000 miles south of the area, this same plume of deep, tropical moisture locked over Southwest Texas and rained over much of the area on a daily basis through the end of the month.Since a drought is a very loosely defined phenomenon, there is no explicit beginning or end, but for the purposes of Storm Data there is no room for flexibility--only…

  2. Jun 5, 2005Thunderstorm Wind$100,000
    National Weather Service narrative

    Severe thunderstorm winds caused extensive damage in Gail. At least two roofs were damaged with one being blown off of a permanent residence. In addition, a small outbuilding was overturned and several large trees downed.

  3. Jun 4, 2020Thunderstorm Wind$100,000
    National Weather Service narrative

    A thunderstorm moved across Borden County and produced wind gusts estimated to be 80 to 85 mph in Gail. Damages include roofs blown off, fences destroyed, trees blown over, sheds blown over, bent poles, and a damaged stop sign. The cost of damage is a very rough estimate.

  4. Jun 5, 2005Tornado$80,000
    National Weather Service narrative

    A significant tornado developed in southern Borden County shortly after 18:00 CST. This tornado initially formed just north of Farm to Market Road 1785 three miles west of that highway's intersection with Farm to Market Road 1205. The tornado then slowly moved southwest, and resulted in a wide swath of damage to mesquite trees, road signs, fences, and utility poles as it crossed Farm to Market Road 1785.The tornado's damaging ground circulation briefly dissipated south of Farm to Market Road 1785 in south-central Borden County. Video provided by the public and storm spotters indicated that this phase of the tornado's life cycle was characterized by a condensation funnel that…

  5. Sep 2, 2024Flash Flood$75,000
    National Weather Service narrative

    The emergency manager reports several high-water rescues were conducted near and around Lake J.B. Thomas during the afternoon and early evening. The property damage cost is an estimation.

  6. Jun 11, 1999Thunderstorm Wind$30,000
    National Weather Service narrative

    Scattered thunderstorm wind damage occurred near Lake Thomas that included roofs blown off two carports and a lake pumphouse, a travel trailer overturned, and 15 utility poles broken. The winds were associated with the RFD winds that hit the Mesquite area.

  7. Jun 14, 2017Thunderstorm Wind$20,000
    National Weather Service narrative

    A thunderstorm moved across Borden County and produced wind damage north of Lake JB Thomas. Ten power poles were blown down north of Lake JB Thomas and west of Bull Creek Channel but the exact location is not known. The cost of damage is a very rough estimate.

  8. May 25, 1998Hail$20,000
    National Weather Service narrative

    Although sparsely populated, most of the people of north-central Borden County were pounded by this HP Supercell south of the mesocyclone. Numerous reports of broken windows in houses and vehicles were received. Animals including one coyote and one deer were killed by the hail as well as numerous rabbits, plus cattle had deep injuries and two horses had an eye put out by the wind-driven large hail.

  9. Jun 4, 2020Thunderstorm Wind$8,000
    National Weather Service narrative

    A thunderstorm moved across Borden County and produced winds estimated to be 100 to 120 mph five miles southeast of Gail. A localized microburst occurred according to a National Weather Service storm survey with three broken powerline poles. The cost of damage is a very rough estimate.

  10. Jun 1, 2018Thunderstorm Wind$8,000
    National Weather Service narrative

    A thunderstorm moved across Borden County and produced wind damage ten miles south of Gail. Power poles were blown down along Willow Valley Road. The cost of damage is a very rough estimate.

  1. 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 Post, 30.7 miles from the county’s population centre, with records from 1962.

All-time high
115°FJun 28, 1994
All-time low
−1°F3 times, most recently Feb 15, 2021
Warmest night
85°FAug 12, 2023
Coldest day
9°FFeb 15, 2021
Wettest day
8.20 inJul 4, 2010
Snowiest day
10.0 inFeb 2, 2014
Hottest year
2024mean 66.8°F
Coldest year
1979mean 59.3°F
Wettest year
194142.96 in
Driest year
19564.99 in
Snowiest season
26.3 in1972-73
Average monthly high and low temperature and precipitation, last 30 years, Post 32°F 56° 30° 0.7 Jan 61° 32° 0.8 Feb 70° 40° 1.0 Mar 78° 48° 1.7 Apr 86° 58° 2.6 May 94° 67° 3.2 Jun 96° 71° 2.3 Jul 96° 71° 2.6 Aug 88° 63° 2.6 Sep 78° 52° 1.9 Oct 67° 40° 1.4 Nov 58° 32° 0.8 Dec Precipitation, inches
Average daily high and low by month, and average monthly precipitation, over the last 30 years.
Days reaching 95°F per year 1976: 28 1977: 71 1978: 72 1979: 39 1980: 66 1981: 32 1982: 28 1983: 61 1984: 47 1985: 60 1986: 44 1987: 20 1988: 36 1989: 49 1990: 51 1993: 39 1995: 73 1996: 60 1997: 38 1998: 89 2001: 63 2002: 41 2003: 46 2004: 30 2005: 34 2006: 60 2007: 9 2008: 44 2009: 75 2010: 80 2011: 113 113 2012: 98 2013: 79 2014: 76 2015: 61 2016: 64 2017: 69 2018: 86 2019: 76 2020: 93 2021: 56 2022: 107 2023: 96 2024: 93 2025: 67 19761986200120112021
Days reaching 95°F each complete year, last 50 years. Thirty-year average: 68.0.
Snowfall by winter 1976: 9.0 in 1977: 9.3 in 1979: 4.0 in 1980: 24.0 in 24.0 1981: 0.0 in 1983: 2.0 in 1984: 2.3 in 1985: 4.3 in 1986: 7.0 in 1987: 14.5 in 1988: 7.2 in 1989: 0.0 in 1990: 1.0 in 1991: 13.0 in 1992: 7.0 in 1993: 2.8 in 1994: 0.0 in 1995: 0.0 in 1996: 0.0 in 1997: 3.0 in 1998: 0.0 in 2000: 0.0 in 2001: 5.6 in 2002: 0.0 in 2003: 1.8 in 2004: 15.0 in 2005: 0.0 in 2006: 9.4 in 2007: 4.8 in 2008: 0.0 in 2009: 12.8 in 2013: 11.6 in 2014: 6.3 in 2015: 9.0 in 2016: 0.4 in 2017: 0.0 in 2018: 2.2 in 2019: 5.5 in 2020: 20.5 in 2021: 1.9 in 2022: 3.3 in 2023: 0.7 in 2024: 1.4 in 2025: 2.5 in 19761988199820092022
Total snowfall each winter (July to June), last 50 winters.

Median first snow

December 29

Earliest: October 27, 2020

Median last snow

February 8

Latest: April 9, 1928

25 of 106 winters had no measurable snow.

Station Post (USC00417206), 2,601 ft elevation, 30.7 miles from the population centre. Daily records from 1962 to October 23, 2026; 98.0% 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

15 since 1953. The most recent: Severe Winter Storms, February 19, 2021.

Federal disaster declarations
Feb 19, 2021Severe Ice StormSevere Winter StormsMajor disasterDR-4586-TX
Feb 14, 2021Severe Ice StormSevere Winter StormEmergencyEM-3554-TX
Mar 25, 2020BiologicalCovid-19 PandemicMajor disasterDR-4485-TX
Mar 13, 2020BiologicalCovid-19EmergencyEM-3458-TX
Feb 9, 2016Severe StormSevere Winter Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disasterDR-4255-TX
Mar 14, 2008FireWildfiresEmergencyEM-3284-TX
Jan 11, 2006FireExtreme Wildfire ThreatMajor disasterDR-1624-TX
Sep 24, 2005HurricaneHurricane RitaMajor disasterDR-1606-TX
Sep 21, 2005HurricaneHurricane RitaEmergencyEM-3261-TX
Sep 2, 2005HurricaneHurricane Katrina EvacuationEmergencyEM-3216-TX
Jan 8, 2001Severe Ice StormSevere Winter Ice StormMajor disasterDR-1356-TX
Sep 1, 1999FireExtreme Fire HazardsEmergencyEM-3142-TX
Aug 26, 1998Severe StormTropical Storm CharleyMajor disasterDR-1239-TX
Sep 10, 1993DroughtExtreme Fire HazardEmergencyEM-3113-TX
Sep 9, 1992Severe StormExcessive Rain & HailMajor disasterDR-960-TX

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.

How this compares

Where Borden County stands among 254 counties in Texas and 3,143 in the United States.

Ranks
Tornadoes since 195011224 / 2542,153 / 3,143
Tornadoes rated F3/EF3 or stronger0——
Tropical cyclones within 50 mi0——
Hurricane-strength passes within 50 mi0——
Wildfire acres since 198413,363106 / 254735 / 3,143
Flood insurance claims0——
Flood insurance paid$0——
Disaster declarations15208 / 2542,305 / 3,143
Flood events since 199622210 / 2542,422 / 3,143
Hail and wind events since 1996174160 / 2542,171 / 3,143
Winter storm events since 199617182 / 2542,685 / 3,143
Reported damage since 1996$13.1 million133 / 2541,787 / 3,143
River crests at major flood stage0——
High tide flooding days a year, last 10 years0.0——
Months in severe drought since 1895164181 / 254659 / 3,143
Medium or heavy smoke days a year, last 10 years8.5193 / 2542,874 / 3,143
Earthquakes M4+ within 50 mi since 1900218 / 254271 / 3,143
Earthquakes M2.5+ in the county since 19730——

Neighbouring counties

Neighbouring counties
Dawson County550010
Garza County26035,2011
Howard County52121,30731
Lynn County4506,2511
Martin County37143,2231
Mitchell County54020,4126
Scurry County43084,3786

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 USC00417206.
  • 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.