948 Earthquakes Near Area 51 in 5 Years — What the Raw Data Actually Says

If you ask the internet how many earthquakes are happening around Area 51, you get headlines — 16 in two days, 17 in one day, a swarm "directly under" the base. We wanted to know what the actual record looked like, so we pulled every USGS-confirmed earthquake in a 90×170-mile box around Groom Lake for the past five years, plotted them, and overlaid every piece of public data we could find about the same patch of desert: military test sites, nuclear legacy zones, satellite-measured ground deformation, and a handful of strange but documented news events.

What came out is not a conspiracy. It's something more interesting: a record of how loudly the Cold War is still echoing through southern Nevada, decades after the last detonation. And it's all in public data — if you know where to look.

The data we pulled

The bounding box for this investigation runs from 36.5° to 38.0° North and -117.5° to -115.0° West. That covers Groom Lake (Area 51), the Tonopah Test Range, the Nevada National Security Site (formerly the Nevada Test Site), Nellis AFB, Creech AFB, Death Valley's eastern edge, and the small civilian towns scattered around them — Rachel, Beatty, Pahrump, Alamo, Mercury, Indian Springs.

Inside that box, between 12 May 2021 and 12 May 2026, the USGS catalog records:

• 8,691 earthquakes of any magnitude
• 948 earthquakes at magnitude 1.5 or greater (the threshold typically considered reliably-detected)
• 1 event over M4.5 (a M4.72 in Death Valley, October 2024)
• Maximum depth: 18.6 km. No events deeper than that — consistent with the brittle, stretching crust of the Basin and Range province.

That's the raw catalog. To extract anything meaningful from it, we cross-referenced four other public datasets:

1. NASA OPERA Sentinel-1 InSAR — satellite-measured ground deformation rates, available publicly since 2024.
2. USGS scientific literature on subsidence at Yucca Flat, Pahute Mesa, and the Las Vegas and Pahrump valleys.
3. US Fish & Wildlife Service and NPR reporting on the Devils Hole pupfish.
4. NPS, AMS, and local news archives for documented weather, fire, fireball, and aviation incidents in the same window.

What 948 dots actually look like

The first surprise is the distribution. The earthquakes do not cluster directly under Area 51 itself — they cluster east of it, along the Pahranagat Shear Zone (a well-mapped active fault), and west of it, around the old underground-test areas of the Nevada National Security Site. Only 34 of the 948 events sat within 30 km of Groom Lake. The breathless "earthquakes under Area 51" coverage usually refers to events 40-80 km away.

The second surprise is the year-over-year count:

• 2021: 95 events
• 2022: 104 events
• 2023: 85 events
• 2024: 341 events
• 2025: 170 events
• 2026 (4 months in): 153 events

2024 had roughly 3-4× the baseline count. No single dramatic swarm accounts for it — the events are scattered across the entire box and across the whole year. The most plausible explanation is a combination of (a) a real but modest tectonic episode and (b) improved detection: USGS added or upgraded seismic stations in the region in 2023-24. Both signals are real; both are also boring.

Three things in the data that are genuinely odd

If you actually sit with the numbers for a while, three patterns stand out — and none of them are what gets written about.

1. A persistent cluster of very shallow events

About 15% of the 948 events are 0-2 km deep. Normal tectonic earthquakes in the Basin and Range sit 5-15 km down. A 0-2 km cluster is unusual. Cross-reference those shallow events with location, and a pattern emerges: a meaningful fraction of them sit within 15 km of Pahute Mesa or Yucca Flat — the two areas where the United States detonated most of its underground nuclear tests between 1951 and 1992.

This isn't speculation. Vincent et al. (2003) used InSAR to measure 8 cm of subsidence in a 2-km-wide elliptical bowl at Pahute Mesa over 14 months, perfectly co-located with a cluster of five underground tests including the 1992 Junction detonation. The rock above old test cavities is still gradually collapsing, and that collapse generates real, measurable, very shallow seismic events.

2. The Alamo swarm sits on a known fault, not under Groom Lake

The "Area 51 swarm" that drew headlines in April-May 2026 produced 25+ events. Every single one of them clustered tightly at roughly 37.11°N, -115.30°W. That's about 47 km east-southeast of Groom Lake — well inside the Nellis range airspace, but nowhere near any named classified facility. It also sits directly on the Pahranagat Shear Zone, which has been generating swarms for decades. The geography is mundane. The persistence is what's unusual: a M4.4 mainshock with 10+ aftershocks spread over six weeks is on the long end of a normal swarm.

3. Distant earthquakes are killing a fish species

This one is genuinely remarkable, and it almost never gets discussed. Devils Hole is a narrow water-filled cavern in the Amargosa Desert, 80 miles east of Death Valley, home to a critically-endangered species: the Devils Hole pupfish. Total population at its 2024 peak: 212 fish.

In December 2024 and again in February 2025, large earthquakes hundreds of miles away triggered seiches — slosh waves — inside Devils Hole. The slosh scoured algae off the shallow shelf the fish feed on. Because both events occurred in winter (no direct sunlight reaches the pool), the algae could not regrow.

By late February 2025, the population had dropped by roughly 90%. The US Fish and Wildlife Service used the backup population at the nearby Ash Meadows facility to begin restocking. NPR documented the crisis in May 2026.

This is one of very few well-documented cases of distant seismicity directly causing a measurable ecological collapse. It's also a useful reminder that the consequences of regional tectonics extend well beyond rattled windows.

What sits underneath those quakes

Pull up the same patch of desert on NASA's OPERA Sentinel-1 InSAR product and the ground is moving. Not catastrophically, but measurably, every year:

• Pahute Mesa — up to 8 cm of subsidence in a 2-km-wide elliptical bowl colocated with old test cavities. Long-term, slow, gravity-driven collapse.
• Yucca Flat — surface craters (Galena, Divider, Sedan) ringed by subsidence halos extending 1 km beyond each crater rim. A different mechanism: aquifer over-pressure dissipating after underground tests.
• Las Vegas Valley NW — 1-3 cm/year, peaking at ~190 mm cumulative subsidence (1992-1997) and ~2 m cumulative since the 1950s. Driven by groundwater pumping. Fissures are opening along basement faults.
• Pahrump Valley — 1-3 cm/year. Water table has dropped 30-60 ft since the 1950s. Homes and roads sinking ("puff dirt"), documented for decades.

None of this is secret. It is in peer-reviewed papers, USGS open-file reports, and NASA's free public satellite product. But you would never know it from the way the region gets discussed online.

The interactive map — explore the evidence yourself

Below is the actual interactive map we built for this investigation. Every dot is a real USGS-confirmed earthquake; every star is a real military or test installation; every circle is a documented surface-deformation zone; every “?” is a real, sourced news event. Click anything for the date, the magnitude or rate, and a link to the primary source.

Toggle "InSAR deformation zones" together with the earthquake layer. Zoom in to Pahute Mesa and Yucca Flat. The story tells itself.

The takeaway

Five years of public data does not show aliens, secret weapons tests, or resumed nuclear detonations under Area 51. What it shows is plainer and arguably more disquieting:

• The rock above the 828 underground nuclear tests at the NNSS is still slowly collapsing into the cavities those bombs left behind. That collapse is measurable from orbit, and it generates measurable shallow earthquakes today.
• The aquifers under Las Vegas and Pahrump are being pumped faster than they refill, the ground is sinking by centimeters every year, and fissures are opening that damage homes and roads.
• Tritium from underground tests that ended over thirty years ago is still in the groundwater, moving slowly southwest toward Death Valley.
• An entire species of fish is being shaken to the edge of extinction by earthquakes occurring hundreds of miles away.
• Nevada has the highest per-capita rate of UAP sightings in the country, and most of them appear to be Starlink satellite trains, military afterburner plumes, and rare atmospheric optics — phenomena that are all real, just not what they look like.

There is a real story underneath southern Nevada. It is the story the Cold War left there, and we are still living inside it. You just have to look at the data — not the headlines — to see it.

Methodology & sources

Data window: 12 May 2021 – 12 May 2026 (five years).
Bounding box: 36.5°N – 38.0°N, -117.5°W – -115.0°W.
Earthquake threshold: M ≥ 1.5 (948 events). Full catalog of 8,691 events at all magnitudes available via the same API.
Catalog: USGS FDSN Earthquake Catalog (pulled as GeoJSON, year by year, combined locally).
Ground-deformation source: NASA JPL OPERA DISP-S1 + Vincent et al. 2003 GRL + USGS SIR 2006-5218.
Ecological cross-reference: KNPR, NPR.
Anomaly reports: 8 News Now, Fox5Vegas, Las Vegas Review-Journal, The War Zone, American Meteor Society, NPS Death Valley, USGS, DOE NNSA, Nevada Independent, Military.com. Every marker in the interactive map links to its primary source.
Tools: USGS FDSN HTTP API; Python for catalog assembly; Leaflet for cartography; Esri / OpenStreetMap tiles. No proprietary datasets used — every byte of this is reproducible from public endpoints.

Have a counter-finding or a dataset we should have included? The map is built to be extended. We're listening.