Greenfield
Population 21,138 (2025)
1 tornadoes have tracked within 25 miles of Greenfield since 1950, 0 of them rated EF3 or F3 or stronger; the most recent was on April 22, 2016.
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 19501
- Wildfire burn scars within 25 miles since 198448
- Major flood years since 1978, Monterey County3
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 Monterey 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 Monterey County.
Strongest tornado
EF0
April 22, 2016, 0.2 mile path
Federal disaster declarations
33
Most recent: Severe Winter Storms, Tornadoes, Flooding, Landslides, and Mudslides, 2024
DetailsTornadoes
About one every 76 years since 1950, none rated F3/EF3 or stronger.
Strongest
April 22, 2016
EF0, 0.2 mile path
15 yards wide.
Most recent
Friday, April 22, 2016
EF0, 0.2 mile path
10 years ago.
Every recorded tornado
| Apr 22, 2016 | EF0 | 0.2 | 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
No tropical storm or hurricane has tracked within 100 miles since records began in 1851.
Wildfire and smoke
48 large fires burned within 25 miles since 1984.
Largest
June 21, 2008
Basin Complex, 164,453 acres
7.8 miles from the city centre.
Most recent
July 23, 2024
Metz Fire
1,019 acres in total.
Every large fire
| Metz | 2024 | 2.7 | 1,019 |
| Airline | 2024 | 22.9 | 1,348 |
| Willow | 2021 | 17.0 | 3,089 |
| Dolan | 2020 | 15.0 | 124,343 |
| Carmel. | 2020 | 19.6 | 7,297 |
| River | 2020 | 12.0 | 51,566 |
| Lonoak | 2019 | 11.6 | 2,609 |
| Airline | 2018 | 15.1 | 1,478 |
| Soberanes | 2016 | 12.9 | 131,881 |
| Coleman | 2016 | 12.5 | 2,882 |
| Stony | 2016 | 21.7 | 5,116 |
| Metz | 2016 | 3.3 | 3,825 |
| Tassajara | 2015 | 18.7 | 1,085 |
| Unnamed | 2015 | 24.7 | 1,799 |
| Unnamed | 2015 | 24.0 | 1,063 |
| Peanut | 2015 | 22.2 | 3,770 |
| Stony | 2014 | 21.8 | 5,840 |
| Unnamed | 2013 | 17.0 | 4,433 |
| Gloria | 2009 | 7.3 | 6,682 |
| Chalk | 2008 | 22.5 | 15,409 |
| Unnamed | 2008 | 23.5 | 1,219 |
| Basin Complex | 2008 | 7.8 | 164,453 |
| Basin Complex (Indians) | 2008 | 7.9 | 59,072 |
| Unnamed | 2008 | 23.0 | 2,850 |
| Unnamed | 2005 | 22.4 | 39,062 |
| Johnson | 2005 | 14.9 | 1,400 |
| Unnamed | 2003 | 22.3 | 2,712 |
| Unnamed | 2002 | 13.0 | 1,230 |
| Sulphur Springs | 2002 | 18.4 | 1,874 |
| Kirk Complex (Hare) | 1999 | 19.3 | 43,032 |
| Kirk Complex (Five) | 1999 | 17.7 | 36,149 |
| Stonewall | 1998 | 9.0 | 2,975 |
| Unnamed | 1998 | 22.2 | 2,864 |
| Unnamed | 1997 | 4.5 | 1,820 |
| Wild | 1996 | 23.6 | 24,434 |
| Unnamed | 1996 | 22.2 | 19,244 |
| Pinnacles | 1994 | 9.0 | 1,131 |
| Rancho | 1993 | 10.2 | 5,562 |
| Metz | 1993 | 6.7 | 1,527 |
| Slickrock | 1992 | 24.7 | 2,447 |
| Unnamed | 1992 | 22.7 | 1,012 |
| Seco | 1992 | 12.6 | 2,684 |
| Unnamed | 1992 | 23.0 | 2,070 |
| Unnamed | 1989 | 8.7 | 1,860 |
| Unnamed | 1987 | 24.4 | 2,171 |
| River | 1986 | 9.1 | 4,617 |
| Bryant Canyon | 1986 | 7.5 | 2,121 |
| Bumb | 1985 | 24.8 | 1,299 |
- 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
2020: 48 days
Heavy smoke on 30 days in 2020, the most of any year.
Last 10 years
13.6 days a year
Medium or heavy smoke, 2016 to 2025.
2025
3 days
Medium or heavy smoke. 6 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
1,492 federal flood insurance claims since 1978, with $42.4 million paid.
Flood insurance figures are for Monterey County, the county that contains Greenfield.
Most claims in one year
1995: 704 claims
$19.7 million paid.
2nd most
1998: 319 claims
$1.8 million paid.
3rd most
2023: 170 claims
$13.2 million paid.
Claims by ZIP code
| 93923 | 623 | $16.8 million |
| 95076 | 265 | $15.0 million |
| 93924 | 257 | $3.3 million |
| 93940 | 43 | $2.8 million |
| 93906 | 43 | $417,000 |
| 93908 | 41 | $472,000 |
| 93907 | 34 | $642,000 |
| 93927 | 23 | $440,000 |
| 93921 | 20 | $221,000 |
| 93920 | 19 | $176,000 |
| 95012 | 18 | $201,000 |
| 93901 | 17 | $187,000 |
| 93930 | 16 | $790,000 |
| 93905 | 15 | $65,000 |
| 93926 | 13 | $202,000 |
| 93902 | 12 | $78,000 |
| 93953 | 12 | $89,000 |
| 93925 | 6 | $91,000 |
| 93950 | 5 | $47,000 |
Flood events since 1996
- Flood120
- Flash Flood32
- Heavy Rain18
- Coastal Flood7
1 death recorded in flood events since 1996.
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 Monterey County, the county that contains Greenfield.
Most severe crest
March 11, 1995
Salinas River near Bradley, 23.44 ft
9.44 feet above the 14.0 ft flood stage; major flooding by today’s categories.
Most recent moderate or major crest
March 13, 2023
Salinas River near Spreckels, 26.89 ft
Moderate flooding.
River gauges
| Carmel River Lagoon | 12.5 | — | 0 |
| Carmel River at Robles Del Rio | 8.5 | 12.90 ft | 0 |
| Garrapata Creek above Highway 1 | 6.0 | — | 0 |
| Pajaro River at Main Street | 31.0 | — | 0 |
| Salinas River at Soledad | 18.0 | 26.49 ft | 0 |
| Salinas River near Bradley | 14.0 | 23.44 ft | 1 |
| Salinas River near Spreckels | 23.0 | 30.29 ft | 1 |
- 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.
High tide flooding
Tide gauges in Monterey County.
Most in one year, Monterey
7 days
May 2025 to April 2026.
Last ten years
1.1 days a year
At Monterey, 2016–26.
- High tide flooding days are days on which a NOAA tide gauge recorded water at or above NOAA's minor flood threshold, set from the gauge's tide range, counted by meteorological year (May to April). These are the counts in NOAA's annual high tide flooding reports; they are not National Weather Service flood stages. Years with less than 80 percent of data are left out.
NOAA CO-OPS high tide flooding counts, through April 2026, retrieved October 30, 2026.
Drought
In severe drought or worse for 190 of 1,581 months since 1895 (12%); the longest spell lasted 33 months.
The drought index is for Monterey County, the county that contains Greenfield.
190
Months in severe drought or worse since 1895
72
Months in extreme drought
12%
Share of all months, severe or worse
Lowest reading
July 2014
−6.80, extreme drought
Longest severe spell
33 months
April 2013 to December 2015.
Latest month
September 2026
−1.84, mild drought
Last severe month: October 2022.
- 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, tsunamis and landslides
326 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 6.5 in 2003.
3,010
Magnitude 3+ within 50 miles since 1973
326
Magnitude 4+ within 50 miles since 1900
36
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
December 22, 2003
10 km NE of San Simeon, California; 43.8 miles away, 5.2 miles deep.
Most recent, magnitude 3 or more
October 22, 2026
Magnitude 3.0
15 km S of Tres Pinos, CA; 23.2 miles away.
Every earthquake of magnitude 4 or more within 50 miles
- 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.
Tsunamis
Tsunami records for Monterey County.
Highest water recorded
Mar 28, 1964
7.4 ft, Pebble Beach, CA
From Prince William Sound, AK (magnitude 9.2 earthquake).
On record
26 tsunamis
Since 1901.
| Jul 29, 2025 | Kamchatka Peninsula, Russia, M8.8 | 1.5 | 0 |
| Jan 15, 2022 | Tonga Islands | 2.5 | 0 |
| Aug 12, 2021 | Southern Atlantic Ocean, M8.1 | 0.2 | 0 |
| Jul 29, 2021 | Kodiak Island, AK, M8.2 | 0.3 | 0 |
| Mar 4, 2021 | S Of Raoul Island, Kermadec Islands, M8.1 | 0.2 | 0 |
| Sep 16, 2015 | Central Chile, M8.3 | 0.4 | 0 |
| Apr 1, 2014 | Northern Chile, M8.2 | — | 0 |
| Feb 6, 2013 | Santa Cruz Islands, M7.9 | 0.1 | 0 |
| Oct 28, 2012 | British Columbia, M7.7 | 0.5 | 0 |
| Mar 11, 2011 | Honshu Island, M9.1 | 6.6 | 0 |
| Feb 27, 2010 | Central Chile, M8.8 | 1.2 | 0 |
| Oct 7, 2009 | Vanuatu Islands, M7.6 | 0.2 | 0 |
| Sep 29, 2009 | Samoa Islands, M8.1 | 0.5 | 0 |
| Dec 26, 2004 | Off W. Coast Of Sumatra, M9.1 | 0.3 | 0 |
| Sep 25, 2003 | Hokkaido Island, M8.3 | 0.2 | 0 |
| Jun 23, 2001 | S. Peru, M8.4 | 0.3 | 0 |
| Jun 10, 1996 | Andreanof Islands, AK, M7.9 | — | 0 |
| Feb 17, 1996 | Irian Jaya, M8.2 | 0.2 | 0 |
| Jul 30, 1995 | Northern Chile, M8.0 | 0.1 | 0 |
| Apr 25, 1992 | Cape Mendocino, N. California, M7.2 | 0.1 | 0 |
| Oct 18, 1989 | N. California, M6.9 | 3.3 | 0 |
| Mar 28, 1964 | Prince William Sound, AK, M9.2 | 7.4 | 0 |
| May 22, 1960 | Southern Chile, M9.5 | 3.6 | 0 |
| Mar 9, 1957 | Andreanof Islands, AK, M8.6 | 2.0 | 0 |
| Apr 1, 1946 | Unimak Island, AK, M8.6 | 5.2 | 0 |
| Mar 3, 1901 | Monterey Bay, N. California, M6.7 | — | 0 |
- Places where NOAA's Global Historical Tsunami Database records a tsunami's water arriving, with the greatest height it reached above sea level at the time. Only tsunamis NOAA rates probable or definite are counted. Heights from eyewitness accounts and tide gauges are mixed, and older events are less completely recorded.
NOAA NCEI/WDS Global Historical Tsunami Database, retrieved October 30, 2026.
Mapped landslides
Landslides mapped in Monterey County.
2,567
Landslides mapped, probable or better
35
With a recorded date
5
Source inventories
Mapped by CA GS (2,514), NASA (27), West Coast Slow Moving (Yuankun and others, 2021) (14), USGS Earthquake-Triggered Ground Failure (8), USGS Conterminous (4).
- Landslides mapped in the USGS compilation of landslide inventories across the United States (version 3.0, 2025), rated probable or better. The compilation joins inventories made by federal and state agencies for different purposes and areas, so the number mapped in a county reflects how closely it has been surveyed as much as how often its slopes fail. An area with few records may simply not have been mapped. Deaths are as recorded in the inventories; a slide listed in two inventories is counted once.
USGS Landslide Inventories across the United States, version 3.0, retrieved October 27, 2026.
Severe weather and other events
490 events in the National Weather Service record for Monterey County, 486 of them since 1996.
1
Hail reports, 1 inch or larger
0
Hail, 2 inches or larger
5
Damaging gusts, 58 mph+
11
Winter weather events since 1996
6
Heat events since 1996
7
Cold events since 1996
Largest hail
January 20, 2010
1.00 inches
Strongest measured or estimated gust
December 14, 2024
78 mph
More event types since 1996
| Rip currents | 13 | 9 |
| High surf and sneaker waves | 23 | 15 |
| Storm surge and tide | 2 | 0 |
| Lightning | 3 | 0 |
| Dense fog and smoke | 6 | 3 |
| Debris flows | 40 | 0 |
| Tsunamis | 1 | 0 |
Costliest events since 1996
- Sep 8, 1999Wildfire$66.9 million
National Weather Service narrative
A surface low off the CA Coast brought tropical moisure and mild istability over the coastal CA are and lightning continued through the night over the entire Central Coast and San Francisco Bay area.Kirk Complex (consisted of Tassajara, Five, Big Pine, Elephant, Lone Pine, Freed, 7, Torre, Devil, Kirk and Hare Fires) Complex was divided into the North and South Components). Cause: Lightning strikesLocation: In the Ventana Wilderness approximately 20 miles Southeast of Carmel, CA. Monterey Co. Size: 85,634 acres (as of 10/19/99)Containment: OctoberFatalities: noneStructures Lost: noneCost: $66.9 million (as of 10/19/99)
- Oct 18, 1996Wildfire$12.3 million
National Weather Service narrative
This fire known as the Big Sur fire began Oct 18 near Ventana Camp Park. Much of the fire occurred in the Ventana wilderness area. 2500 Fire fighter participated. 4400 acres were burned. light rain helped control fire. The cost of fighting the fire is estimated 12.3 million. 180 fire engines were used. 13 helicopters and 3 air tankers were used.
- Feb 6, 1998Flash Flood$10.0 million
National Weather Service narrative
Highway One closed all along big Sur Coast due to Flash flooding and resulting mudslides , and portion of the road washing away. Road not opened until May 98.
- May 19, 2017Debris Flow$10.0 million
National Weather Service narrative
Heavy winter rain caused a deep rooted debris flow to occur that covered highway 1. This slide has no estimated time for removal and has damage estimates well in to the millions.|http://www.mercurynews.com/2017/05/31/big-sur-coast-has-grown-13-acres-from-new-landslide/. https://www.usnews.com/news/us/articles/2017-05-23/massive-slide-covers-stretch-of-iconic-california-highway.
- Oct 7, 1996Wildfire$4.5 million
National Weather Service narrative
The fire known as Wild Cattle Canyon Fire burned over 20,000 acres mostly in the Las Padres National Forest and Big Sur area. This fire lasted 7 days and was supported by an IMET from San Juaoquin Valley NWFO. 15 Federal, State, and local agencies provided as many as 2200 firefighters were on the fire.Three Firefighter were injured from falling in the steep terrain. The cost in the firefight alone was $4.5 Million. 5 homes were distroyed. two vehicles,two travel trailers and nine outbuildings were distroyed. High temperatures proceeded the fires with a high of 102 in Monterey. Heavy fog caused problems because aircraft and helicopters could not operate over the very rugged…
- Mar 16, 2011Debris Flow, Southern Monterey Bay And Big Sur Coast$2.5 million
National Weather Service narrative
Heavy rain on saturated soils caused a large landslide on State Route One 13.7 miles north of Big Sur State Park at Rocky Creek. The roadway reopened to one-way controlled traffic on April 20, 2011.
- Mar 11, 2011Tsunami, Southern Monterey Bay And Big Sur Coast$1.8 million
National Weather Service narrative
Moss Landing Harbor sustained damages to docks and harbor structures during the tsunami.
- Mar 24, 2011Debris Flow, Southern Monterey Bay And Big Sur Coast$1.2 million
National Weather Service narrative
Heavy rain and high surf caused widespread flooding, mudslides, road closures, and downed power lines across Monterey County.
- Feb 13, 2000Flash Flood$1.0 million
National Weather Service narrative
floods and mudslides water from the persistent rain washed out highway one south of Big Sur that still has not been reopened two months later.The Bolsa knolls area was flooded and water damaged a number of houses and businesses. Houses in Prunedale were flooded with water and mud. Fallen trees were the cause of power outages to around 2,400 people in North Monterey County. Pacific Grove Mifddle School was flooded and evacuated.
- Mar 24, 2011Flood$1.0 million
National Weather Service narrative
There were 1279 acres of crops or croplands impacted by flooding from the Salinas River and its tributaries (1263 acres of Salinas River acreage and 16 acres from the tributaries).
- 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 King City, 10 miles from the city centre, with records from 1926.
- All-time high
- 115°FSep 2, 2017
- All-time low
- 14°F2 times, most recently Dec 23, 1990
- Warmest night
- 68°F4 times, most recently Sep 6, 2020
- Coldest day
- 40°FJan 28, 1957
- Wettest day
- 3.72 inJan 18, 1914
- Snowiest day
- 5.0 inJan 27, 1957
- Hottest year
- 2014mean 62.7°F
- Coldest year
- 1955mean 57.1°F
- Wettest year
- 198326.41 in
- Driest year
- 20131.80 in
Station King City (USC00044555), 320 ft elevation, 10.0 miles from the city centre. Daily records from 1926 to October 26, 2026; 92.0% 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
33 since 1953. The most recent: Severe Winter Storms, Tornadoes, Flooding, Landslides, and Mudslides, April 13, 2024.
Declarations for Monterey County.
| Apr 13, 2024 | Severe Storm | DR-4769-CA |
| Apr 3, 2023 | Severe Storm | DR-4699-CA |
| Mar 10, 2023 | Flood | EM-3592-CA |
| Jan 14, 2023 | Flood | DR-4683-CA |
| Jan 9, 2023 | Flood | EM-3591-CA |
| Aug 22, 2020 | Fire | DR-4558-CA |
| Aug 19, 2020 | Fire | FM-5333-CA |
| Aug 17, 2020 | Fire | FM-5329-CA |
| Mar 22, 2020 | Biological | DR-4482-CA |
| Mar 13, 2020 | Biological | EM-3428-CA |
| May 17, 2019 | Severe Storm | DR-4434-CA |
| Apr 1, 2017 | Flood | DR-4308-CA |
| Feb 14, 2017 | Severe Storm | DR-4301-CA |
| Jul 28, 2016 | Fire | FM-5137-CA |
| Apr 18, 2011 | Tsunami | DR-1968-CA |
| Jul 4, 2008 | Fire | FM-2781-CA |
| Jun 28, 2008 | Fire | EM-3287-CA |
| Mar 13, 2007 | Freezing | DR-1689-CA |
| Sep 13, 2005 | Hurricane | EM-3248-CA |
| Feb 9, 1999 | Freezing | DR-1267-CA |
| Feb 9, 1998 | Severe Storm | DR-1203-CA |
| Jan 4, 1997 | Severe Storm | DR-1155-CA |
| Mar 12, 1995 | Severe Storm | DR-1046-CA |
| Jan 10, 1995 | Severe Storm | DR-1044-CA |
| Feb 3, 1993 | Flood | DR-979-CA |
| Feb 11, 1991 | Freezing | DR-894-CA |
| Oct 18, 1989 | Earthquake | DR-845-CA |
| Jul 18, 1985 | Fire | DR-739-CA |
| Feb 9, 1983 | Coastal Storm | DR-677-CA |
| Feb 15, 1978 | Flood | DR-547-CA |
| Jan 20, 1977 | Drought | EM-3023-CA |
| Jan 26, 1969 | Flood | DR-253-CA |
| Jan 2, 1967 | Flood | DR-223-CA |
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 USC00044555.
- River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
- Tide gauges NOAA CO-OPS high tide flooding counts, 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.
- Tsunamis NOAA NCEI/WDS Global Historical Tsunami Database.
- Landslides USGS Landslide Inventories across the United States, version 3.0 (2025).
- 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.