Nevada
5 of the most significant atomic blasts at the Nevada Test Site
The Nevada Test Site didn’t waste any time.
President Harry Truman established the site, a 680-square-mile section of the Nellis Air Force Gunnery and Bombing Range, on Dec. 18, 1950.
Less than six weeks later, a 1-kiloton device, equivalent to 1,000 tons of TNT, was dropped from an Air Force B-50 bomber.
It was the first of 928 nuclear tests, 100 of them above ground, at what was originally known as the Nevada Proving Grounds and is now referred to as the Nevada National Security Site.
We asked the Atomic Museum’s Joe Kent, deputy director and curator, and Matt Malinowski, director of education, about the most significant blasts at the test site.
Here are five of their picks, with the series name followed by the test name, along with how the Review-Journal covered them.
Ranger/Able
Date: Jan. 27, 1951
What it was: This was the first atomic test in the continental U.S. since the Manhattan Project’s Trinity test on July 16, 1945.
“It was very much, ‘OK, let’s get started. Let’s see how it goes,’ ” Kent said.
How we covered it: “Roulette wheels and dice tables, which operate 24 hours a day here, were still doing a brisk business when the blast went off around 5 a.m.,” we wrote.
“In the Golden Nugget, a man standing at one of the craps tables felt the shock. He paused and looked around.
“ ‘Must be an A-bomb,’ he said. He turned back to the table and went on with the game.”
Local insurance agent O.A. Kimball said one of his clients called before dawn to tell him the plaster on her walls and ceiling were cracked by the explosion.
“ ‘The doors really played a tune when the thing went off,’ Kimball reported her as saying, ‘and I was afraid for a few minutes the house would fall down.’ ”
Upshot-Knothole/Harry
Date: May 19, 1953
What it was: This 32-kiloton test became known as “Dirty Harry” when the fallout, which was intended to land between Alamo and Glendale, was blown downwind into St. George, Utah.
“That’s probably the quintessential test that is tied to the downwinder movement,” Kent said of the presumed victims of the blast who were exposed to radiation.
How we covered it: “The cloud, which was barely visible in Las Vegas because of the overcast, gray dawn, traveled in an east-southeast direction and the atomic energy commission (sic) established highway checkpoints on Highways 91 and 93 to warn motorists of the possibility of radioactive fallout.
“The checkpoints were established at St. George, Alamo, Glendale and Nellis air force base (sic) and were a precautionary measure. No hazardous levels of radioactivity were reported.”
The next day, we checked in on St. George.
“Having an atomic cloud hover over their town caused little concern to the men, women and children who live in St. George, Utah, who kept indoors several hours yesterday after atomic energy commission officials reported that there would be some fallout there after yesterday morning’s shot.”
St. George resident Dick Hammer estimated between 30 and 40 people, most of them tourists, were in his Dick’s Cafe when the word that people should remain indoors came over the radio. One woman, he said, wondered what would happen to them.
“ ‘Hell, lady, I don’t know,’ Hammer replied, ‘but I don’t think you have much to worry about.’ ”
Teapot/Apple 2
Date: May 5, 1955
What it was: This was the second of “two highly publicized civil effects tests just to see what would happen to a small town,” Kent said. “What would be the concerns if the town was hit with one of these bombs.”
It’s also the test that inspired the scene in “Indiana Jones and the Kingdom of the Crystal Skull” in which Indy rides out a nuclear blast in a refrigerator.
A 29-kiloton device was dropped from a 500-foot tower near Doom Town, the symbolic burgh made up of fully furnished homes, a radio station, a gas station and other signs of civilization, with mannequins representing the residents.
How we covered it: “A fearsome nuclear weapon bludgeoned this guinea-pig city today while the civil defense teams staged a dress rehearsal of their possible roles in the atomic age.
“Dummies dressed as men, women and children were grouped under the atom’s devastating might in an experiment to determine how families in an American target city might survive the fury of nuclear warfare.”
The blast was described as “a spectacular orange, blue and purple fireball.”
The next day, officials got a full look at the damage.
“Death and serious injury struck the dummy men, women and children of Doomsday Drive, the little dirt road lying only 4,700 feet from ground zero,” we wrote.
“A mannequin mother died horribly in her one-story home of pre-cast concrete slabs. Portions of her plaster-and-paint body were found in three different areas. A mannequin tot, perhaps the size of your 3-year-old, was blown out of bed and showered with needle-sharp glass fragments. This house withstood the blast, but its occupants may not have.”
Plumbbob/Hood
Date: July 5, 1957
What it was: A 74-kiloton thermonuclear device was dropped from a balloon, sending an atomic cloud 49,000 feet into the air, as part of the largest above-ground test at the site. The test is featured in the Atomic Museum’s Ground Zero Theater.
It also was part of the Desert Rock exercises, essentially war games designed to test how members of the military would perform during an atomic war.
“They would have these exercises along with the blasts,” Malinowski said. “So the troops would be put into foxholes or trenches, told to stay down low, not to look directly at the light while it was going off.”
How we covered it: “Nuclear scientists this morning fired the largest atomic blast ever to be detonated in the continental United States and the resulting explosion caused veteran observers 13 miles from ground zero to gasp with awe at its terrible immensity.
“The flash and fulminating fireball caused joshua (sic) trees and yucca plants near zero to burst into flames, making the desert floor resemble a flaming city.”
Elsewhere in that edition, it was reported that “a United Airlines pilot flying from Honolulu to Los Angeles radioed that he saw the light of the Nevada blast as his plane cruised 1,000 miles off the California coast.” A bright flash was reported in San Francisco, while residents in Hollywood, Anaheim and Newport Beach reported feeling “two jarring shocks” at 5:05 a.m., 25 minutes after the detonation.
Julin/Divider
Date: Sept. 23, 1992
What it was: This underground vertical shaft test of less than 20 kilotons proved to be the final full-scale test at the site. It wasn’t designed to be, but a nine-month testing moratorium went into effect on Oct. 1. The next year, it was extended indefinitely.
“They still do subcritical testing on the weapons stockpile out there,” Malinowski said. “So even though they’re not doing full-scale detonations, there are experiments they do to kind of verify that the stockpile is still well-maintained and active.”
How we covered it: “The United States conducted its sixth nuclear weapons test of the year Wednesday at the Nevada Test Site, five days after the last one, while four Belgian anti-nuclear activists hid within a mile or two of ground zero, U.S. authorities said.
“The four — three men and a woman — said they feared for their safety as Department of Energy scientists began counting down the last five minutes prior to the 8:04 a.m. detonation, prompting them to flee on bicycles to a safer location, some three miles from ground zero.”
They were arrested there about an hour later.
“I was kind of scared,” said Michiel De Grande, 25, outside the Foley Federal Building after he was ordered to appear the next day for a hearing on federal trespass charges. “The feeling inside was real strange, the feeling of the pain of the Earth. It shook for 10 seconds. Even before the bomb exploded you could feel the Earth crying.”
Contact Christopher Lawrence at clawrence@reviewjournal.com or 702-380-4567. Follow @life_onthecouch on X.
Nevada
Earthquake swarm rattles central Nevada near Tonopah along newly identified fault
A swarm of earthquakes has been rattling a remote stretch of central Nevada near Tonopah, including a magnitude 4.0 quake that hit near Warm Springs Tuesday morning.
Seismologists said the activity is typical for Nevada, where clusters of earthquakes can flare up in a concentrated area. “This is a very Nevada-style earthquake sequence. We have these a lot where we just see an uptick in activity in a certain spot,” said Christie Rowe, director of the Nevada Seismological Lab.
The latest magnitude 4.0 quake struck east of Tonopah near Warm Springs. The largest earthquake in the swarm so far has measured a 4.2.
What has stood out to researchers is the fault involved. Rowe said the earthquakes are occurring along a fault stretching along the southern edge of the Monitor and Antelope ranges — and that it was previously unknown to scientists. “We didn’t know this fault was there. It’s a new fault to us — not to the Earth, obviously — but it was previously unknown,” Rowe said.
For now, the earthquakes have remained moderate. Rowe said the lab would not deploy additional temporary sensors unless activity increases to around a magnitude 5 or greater.
Seismologists said they are continuing to watch the swarm closely as Nevada works to bring the ShakeAlert early warning system to the state. The program, already active in neighboring states, can send cellphone alerts seconds before shaking arrives. “For me, it’s a really high priority. That distance to the faults gives us enough time to warn people — and that can make a big difference in reducing injuries and damage,” Rowe said.
Seismologists encouraged anyone who feels shaking to report it through the U.S. Geological Survey’s “Did You Feel It” system, saying even small quakes can help scientists better understand Nevada’s seismic activity.
Experts said the swarm is worth monitoring but is not cause for alarm. They noted that earthquakes like the 5.8 that hit near Yerington in December 2024 typically happen in Nevada about every eight to 10 years, and said they will continue monitoring the current activity closely.
Nevada
Kalshi Enforcement Action Belongs in Nevada Court, Judge Says
Nevada state court is the proper venue for reviewing whether KalshiEX LLC is improperly accepting sports wagers without a license, a federal district court said.
The Nevada Gaming Control Board showed that the state statutes under which it seeks relief don’t require interpreting federal law, Judge Miranda M. Du of the US District Court for the District of Nevada said in a Monday order. The board’s action is now remanded to the First Judicial District Court in Carson City, Nev., the order said.
The board in 2025 urged Kalshi, a financial services company, to get a gaming license, but the …
Nevada
EDITORIAL: Nevada still vulnerable as tourist downturn continues
Strip gaming executives can put their best spin on the numbers, but local tourism indicators remain a major concern. Casino operators seeking to draw more people through the door still have much work to do.
The Nevada Gaming Control Board released January gaming numbers Friday. The news was underwhelming. The state gaming win was down 6.6 percent from a year earlier. The Strip took the largest hit, an 11 percent drop. But the gloomy returns were spread throughout Clark County: Downtown Las Vegas was off 5.2 percent, Laughlin suffered a 3.3 percent decline and the Boulder Strip dipped by 7 percent.
For the current fiscal year, gaming tax collections are up a paltry
2.1 percent, below budget projections.
The red flags include more than gaming numbers. Recently released figures for 2025 reveal that visitation to Las Vegas fell nearly 8 percent from 2024, which represented the lowest total since the pandemic in 2021. Traffic at Reid International Airport fell more than 10 percent in December and was down 6 percent for the year. Strip occupancy rates fell 3 percent in 2025.
To be fair, this is not just a Las Vegas problem. International travel to the United States was down
4.8 percent in January, Forbes reported, the ninth straight month of decline. Travel from Europe fell 5.2 percent, and passenger counts from Asia fell 7.5 percent. Canadian tourism cratered by 22 percent.
No doubt that President Donald Trump’s blustery rhetoric has played a role in the decline, but there’s more at work. International tourism has been largely flat since Barack Obama’s last few years in office. But domestic travel has held relatively steady although it is “starting to cool,” according to the U.S. Travel Association. Las Vegas hasn’t been helped by high-profile complaints last year about exorbitant Strip prices for parking, bottled water and other staples. Casino operators responded by offering discounts, particularly for locals, and they’ll need to continue those policies into 2026.
The tourism downturn has ramifications for the state budget, which relies primarily on sales and gaming tax revenues to support spending plans. “Nevada’s employment and economic challenges reflect deep structural factors that extend beyond cyclical economic fluctuations,” noted a recent report by economic analyst John Restrepo. “The state’s extreme concentration in tourism and gaming creates unique vulnerabilities.”
The irony is that state and local politicians have been talking for the past half century about “diversifying” the state economy. In recent years, that effort has primarily consisted of handing out millions in tax breaks and other incentives to attract businesses to the state. A dispassionate observer might ask whether that approach has brought an adequate return on investment.
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